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NP-EIFS

NON-PERMISSIVE EXTERIOR INSULATION AND FINISH SYSTEMS CONCEPT

TECHNOLOGY AND DETAILS

FIELD OF THE INVENTION

This invention relates to a new concept of the permissive exterior insulation and finish

systems to transform these systems in to a non!permissive to water air and vapor exterior

insulation and finish system"

#$%&'(O)ND OF THE INVENTION

Exterior Insulation and Finish *ystems +EIF*, are well -nown in the art" *uch systems

typically consist of a layer of su.strate such as plywood oriented!strand .oard O*# /ypsum

sheathin/ etc an insulation layer such expanded polystyrene mesh em.edded in a coat of

polymer modified cement and polymeric finish" Ori/inally EIF* was an exterior wall concept

desi/ned to have hi/h insulation values and a relia.le stucco finish that could .e economically

created in a wide array of textures and colors" 'enerally these systems include an exterior

wall havin/ an expanded polystyrene foam insulation .oard E0* attached via an adhesive or

mechanical fasteners to the su.strate" The exterior of the insulation after all details specified

.y architect such moldin/s .ands structural or aesthetical 1oints are created is covered with a

dura.le water resistant .asecoat which receives a fi.er/lass mesh as reinforcement" $ dura.le

finish coat typically usin/ an acrylic co!polymer technolo/y is then applied" The finish coat

is /enerally .oat color fast and crac- resistant"

EIF* which is a type of claddin/ for exterior .uildin/ walls is defined per $*T2 E345!

65# as a7 non!loadin/ outdoor wall finish system consistin/ of a thermal insulation .oard an

attachment system a reinforced .asecoat exterior 1oint sealant and a compati.le finish"

8hile such EIF* have proved to .e 9uite satisfactory for easy of installation insulatin/

properties and a.ility to receive a variety of aesthetically pleasin/ finishes a serious and

vexin/ pro.lem associated with EIF* construction exists" This pro.lem is one of water

accumulation .ehind the exterior wall coverin/" *uch water it:s considerate to .e the result of

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condensation and wind!driven water that may enter .ehind the exterior wall coverin/ at any

point where the exterior surface of the coatin/ is penetrated" 2oisture is driven throu/h the

porosity of exterior polymer cement and finish coat surface and throu/h air!permea.le

insulation +E0*, .y the difference pressure of cold air and hot air" The air!permea.le

insulation is exposed to permit air to flow into and out of the insulation layer to e9uali;e the

pressure of exterior environment and inside cavity of wall" This flux of air will drive moisture

into the system" 8ind!driven water that may enter .ehind the exterior wall coverin/ may .e

the result of poor wor-manship or desi/n deterioration of flashin/ or sealants over time lesser

9uality doors and windows or any other penetration or compromise of the exterior finish"

Once inside the sealed wall and .ehind claddin/ the water can remain trapped lon/

enou/h .efore evaporatin/ to dama/e or rot any water sensitive elements to which the

insulation is .onded includin/ framin/ structure" This water is -nown in the art as intrudin/

or incidental water"

To eliminate those inconveniences EIF* industry creates draina.le systems" Draina/e is

accomplished .y means of channels formed .y vertical ri..ons of adhesive applied to the .ac-

of the insulation .oards or channeled E0* .oards to form channels for incidental moisture to

escape" The moisture and intrudin/ water travels .etween the ri..ons to the .ottom

termination of the system where it escapes throu/h weep holes of the draina/e vented trac-"

This system is installed over a water and moisture resistive .arrier"

Draina.le systems have difficulties when needs to drain water amon/ windows and when

vertical wall end whit ceilin/ or .eam" *offits have no solutions to drain condensation water"

In addition the moist environment is a .reedin/ /round for wood consumin/ insects and

health ha;ards such as various varieties of molds" $ttempts have .een made to prevent entry

of moisture into the .uildin/ wall interior .y sealin/ or caul-in/ entry points in and around

wall components as the primary defense a/ainst moisture intrusion or .y installin/ flashin/

around the wall components to divert the moisture" These attempts have not .een completely

successful" *ealants are not only difficult to properly install .ut tend to deteriorate and

separate from the wall components due to climatic conditions .uildin/ movement the surface

type or chemical reactions" Flashin/ is also difficult to install and may tend to hold the

moisture a/ainst the wall component" Flashin/s are thermal .rid/es from outside temperatures

and sources of airflow into the wall cavity" These materials are of no value in addressin/ the

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pro.lem of moisture that has already entered a .uildin/ wall cavity or moisture that penetrate

the permea.le E0* .oard and condensate on the moisture .arrier surface"

The superior ener/y efficiency and desi/n flexi.ility of EIF* have resulted in /rowin/

popularity .ut the presence of moisture remains a vexin/ pro.lem" Thus there is a /reat need

for a system and method to prevent and stop moisture to penetrate the insulation layer and

intersections of EIF* whit other elements"

For that we have to fully understand the phenomenolo/y of interior and exterior

environment difference such temperature relative humidity and pressure the conditions of

condensation and physical properties of materials such permea.ility permissively thermal

conducti.ility and otters"

That part of any .uildin/ that physically separates the exterior environment from the

interior environment is called the .uildin/ enclosure or .uildin/ envelope" $lso the .uildin/

enclosure may contain .ut is not the same as the so!called thermal envelope term that is used

to refer to the thermal insulation within the enclosure" The overall enclosure is made up of all

the conti/uous enclosure su.!assem.lies" Further dawn N0!EIF* is considered the thermal

envelope of the enclosure"

#uildin/ assem.lies need to .e protected from wettin/ via rainwater /roundwater air

transported water and vapor diffusion" The typical strate/ies use draina/e planes on air

.arriers air pressure control installed .etween insulation system and exterior wall assem.ly

indifferent of climate location and season" 2oisture usually moves from warm to cold driven

.y the thermal /radient +vapor pressure differential, and from more to less driven .y the

concentration /radient" In cold climates moisture from the interior flows towards the exterior

.y passin/ throu/h .uildin/ enclosure in hot climates moisture from the exterior flows

towards the cooled interior .y passin/ throu/h the .uildin/ envelope" #y climates and seasons

we can have two extreme situations from the exterior environment7 very cold and dry and hot!

hummed with same inside conditioned space limited to 3=> relative humidity at ?@AF

+ (elative Humidity, and

exterior +!CAF Temperature 4=> (H," $.solute humidity +water vapor concentration, is the

drivin/ force" 8ater vapor molecules wendin/ their way throu/h porous materials anthill they

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reach the moisture .arrier" In cold and very cold climates condensation on interior surfaces

occurs durin/ the heatin/ season .ecause the interior surfaces of exterior walls are cool from

heat loss" #ecause on this situation EIF* is placed on the cold side of .uildin/ the wall

assem.ly is warm includin/ vapor retardant material of moisture .arrier" This will e9uili.rate

temperatures air pressure and relative humidity from inside conditioned environment and wall

cavity" %ondensation is avoid .y reducin/ water vapor enterin/ the .uildin/ components and

preventin/ from droppin/ .elow the dew point" Theoretic if insulation thic-ness it:s in

accordance with local climate the only reason of condensation it:s the thermal .rid/es around

windows doors flashin/s and other outside penetrations" 0ractically any material with hi/h

conducti.ility or air lea-a/e from outside can cause condensation"

In hot!humid climates and seasons moisture from the exterior flows towards the cooled

interior .y passin/ throu/h the .uildin/ enclosure condensation occurs .ecause interior

surfaces are typically cold and su.se9uently accessed .y moisture levels which are too hi/h"

Vapor is driven inward trou/h .uildin/ claddin/ .y a hi/h vapor pressure differential .etween

exterior hot and humid air +5 (elative Humidity 55"?C -0a Vapor 0ressure, and

interior wall assem.ly +?@AF 3=> (H 5"B< -0a V0, cooled .y inside air condition" The cold

surfaces in hot climates arise from the air conditionin/ of enclosures" 8hen exterior hot air is

cooled its relative humidity increases" If the exterior hot air is also humid coolin/ this air will

typically raise its relative humidity a.ove the dew point" 8hen claddin/ is draina/e EIF*

vapors are driven from outside hot environment trou/h exterior surface of the coatin/ which is

porous and trou/h expanded polystyrene foam +E0*, used as insulation which is permissive

to vapors and will condensate on the cold surfaces of moister retardant material used as air

and water .arrier" This is the condensation surface which .ecame the draina/e plane" %oolin/

the enclosure and the exterior sheathin/ su.strate from inside conditioned space and moisture

contact with this surface will create most propitious conditions for condensation .ehind EIF*

claddin/" On the summer time we have the opposite situation from winter when the

insulation is placed in the warm side of wall" The wall assem.ly is not properly protect from

inside heat loss +cold loss, .ecause the wall assem.ly materials are thermal conductive metal

or wood studs .ecame thermal .rid/es and fi.er/lass insulation from inside wall cavity is to

permissive to air pressure differential .etween cold and hot" That is in re/ions with varyin/

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climatic temperatures the location where the dew point occurs and where the resultin/

moisture condensation forms in the .uildin/ enclosure varies"

$ccordin/ly one of the most practical solutions in controllin/ condensation and mold

.ehind EIF* and inside enclosure in all climates is limitin/ hot and humid exterior air or other

forms of moisture transport from contactin/ the moisture retardant material used as air .arrier

the condensation surface" %ontrollin/ the vapor pressure at this surface is the most commonly

facilitate to maintainin/ the conditioned space at a sli/ht positive air pressure to the exterior

+approximately .y volume max" +$*T2 %!

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are assem.led from materials incorporated in assem.lies that are interconnected to create

enclosures" Each of the three elements has measura.le resistance to air flow" The minimum

resistance or air permeances for the three components are specified in the art7 2aterial ="= acrylic .ased trowela.le waterproof mem.rane and airvapor .arrier must .e

continuously applied over the entire su.strate surface" #efore applyin/ the continuous

mem.rane a C inch strips of reinforcin/ fa.ric or

all sheathin/ 1oints inside and outside corners and all exposed ed/es at terminations

em.edded with a stainless steel trowel on the acrylic .ased li9uid mem.rane material" *uch a

mem.rane is sold commercially under the trademar- of all presti/ious EIF* material products

companies such as Dryv:it 0arex *to and otters" $t the same time not vented trac-s are

installed on the start ed/e of N0!EIF*" In a further em.odiment of the invention the

expansion 1oints wish are prefera.ly plastic may .e variously constructed for attachment and

cementation to the su.strate and air!vapor resistant layer and to accomplish the principle of

non!permea.ility"

The pro.lems of the prior EIF* have .een overcame .y the instant invention which

provides a moisture and vapor .arrier on exterior of EIF* claddin/ consistin/ in usin/

extruded closed cell polystyrene foam .oards G0* as exterior insulation and water air and

vapor .arrier" This material is impermea.le to water and is vapor retardant havin/ under one

perm 8ater Vapor 0ermeance +n/0asm

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insi/nificant permea.ility accommodated with an installation system which extend the

material properties to the assem.ly to/ether with .ondin/ and sealin/ the intersections and

terminations provide a non!permissive thermal envelope of the enclosure the N0!EIF*

claddin/"

The present invention relates a.out two N0!EIF *ystems one consistin/ in direct applyin/

the non!permissive assem.ly layer of G0* .oards to the air and vapor .arrier continuous

applied to the su.strate and a second system consistin/ in interpolation of a layer of expanded

polystyrene foam E0* .oards .etween air and vapor .arrier of su.strate and the exterior non!

permissive layer of G0* insulation assem.ly" #oth systems have there own advanta/es"

First system consistin/ in direct applyin/ the thermal water and vapor .arrier G0*

assem.ly layer directly to the air and vapor .arrier of su.strate have the advanta/e of faster

installation with lower cost and easily seal the terminations" Terminations of N0!EIF* are

very important four the system .ecause can .e sources of airvapor lea-a/e inside insulation"

$nother advanta/e is that the space where air can exist inside N0!EIF* is minim so the air

pressure and vapor relative humidity inside insulation have no si/nificant effects" If the dew

point is reached inside N0!EIF* claddin/ without air and vapors chan/e with the exterior or

interior environment the vapors .illet inside claddin/ have no ne/ative effects to material

assem.ly"

$ccordin/ to this a layer of G0* .oards

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attached to the sheathin/" The same space is necessary .etween insulation layer and trac-s

expansion 1oints profiles and parapet terminations" $ /ap of a.out 5< inch +54 mm, is

re9uired .etween G0* .oards which create interior or exterior corners and any other G0*

.oards which are not shiplap 1oined" This space is to .e filled with closed cell one or two

components expandin/ polyurethane foam sealant" 0olyurethane foam sealant is applied with a

professional dispersion unit +foam /un, or hose -it to seal and fill cavities .rea-!throu/h and

/aps .etween wall with the insulation layer installed and windowsdoors air conditioner and

other constructive elements" The foam has stron/ adhesive /ood sta.ility and will adhere to

material such as7 metal plastic wood concrete masonry and naturally extruded and

expanded polystyrene foam" $fter solidification it has the sealin/ the heat preservation the

ca-in/ sound!insulatin/ waterproof and other functions .ein/ the most effective unifyin/

component for the completion of an effective air!vapor .arrier system"

8indows and doors are components that are assem.led from elements" 8here elements

1oin to/ether at a 1oint a potential for water and air lea-a/e exist" 2etal or plastic flashin/s

a.ove windows and doors are usually interconnected with water repellent materials +house

wrap sheet mem.ranes, or draina/e planes to provide draina/e of water to the exterior of the

.uildin/" )nder the flashin/ is sometimes a source of air lea-a/e inside wall cavity and every

time a thermal .rid/e .etween exterior environment and insulation su.strate" It is therefore an

o.1ect of the invention to provide moisture protection stop of air and vapor lea-a/e around

openin/ elements and eliminate thermal .rid/es in flashin/ areas to/ether with water control

in the N0!EIF*" To achieve this flashin/ may .e remote from su.strate and the /ap .etween

windowdoor flashin/ and wall openin/ and sheathin/ to .e filled with closed cell expandin/

polyurethane foam sealant" Ideally flashin/s and the elements to receive sealant should .e

desi/ned and assem.led in common with the windowdoor or other constructive elements

frame"

0olyurethane foam sealants are tac- free within 5=!5@ minutes" $fter solidification the

extra foam needs to .e cut and rasped" Next step is to cut aesthetical and control 1oints"

%reatin/ 1oints and reveals on extruded polystyrene +G0*, and expanded polyurethane foam is

easy as cuttin/ 1oints in expanded polystyrene +E0*, .ut little slower and use same EIF* tools

such as hot -nife or plate hot -nife"

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To have an impermea.le and non!permissive to air and vapor pressure system +N0!EIF*,

seal with closed cell expandin/ polyurethane foam and stic- the lap 1oint ed/es of G0* .oards

is not enou/h" To create a non!permissive assem.ly with non!permissive elements is

necessary to seal every G0* 1oints and every surface of polyurethane foam displayed on

outside of insulation" To seal G0* 1oints and expanded polyurethane foam surfaces same

material as for treat sheathin/ 1oints is applied" 2aterials such #ac-stop NT from Dryv:it

or 8eather*eal from 0arex are polymer!.ased non!cementitious trowel applied waterproof

mem.rane and air .arrier and are desi/ned to .e used in con1unction with EIF* systems" Does

materials are extremely flexi.le can .rid/e hairline crac-s and accommodate small

movements .ut water vapor transmission need to .e improve to a lower permeance for N0!

EIF*" $pply this sealant to every not trac- terminations after stic- self!adhesive detail mesh

on G0* ed/es and air!vapor mem.rane of su.strate which exceed N0!EIF* limit" The coatin/

dries 9uic-ly and serves as an excellent surface for adhesively applyin/ of lamina or otter

decorative elements"

The desi/n options of N0!EIF* are virtually endless" The impermea.le stratum assem.ly

with control and aesthetical 1oints and terminations sealed can receive now a various

aesthetical effects" Expanded polystyrene can .e cut or /rooved in various shapes and patterns

is very li/ht in wei/ht and installs easily over G0* layer with polyurethane stic- foam"

2oreover apply polymer!modified cement +.asecoat, and fully em.ed hi/h al-ali!

resistant reinforcin/ mesh in .asecoat include dia/onal mesh patches at corners of openin/s

and reinforcin/ mesh patches at 1oints of trac- sections" $pply multiple layers of .asecoat and

mesh where re9uired for specific impact resistance classification" $ll penetrations shall .e

em.edded in closed cell expanded polyurethane foam sealant and terminations of the system

must .e made weather and vapor!ti/ht the insulation .oard ed/es shall .e encapsulated .y

either casin/ .eads and polyurethane foam sealants or ed/e wrappin/ with weathervapor!

proof mem.rane to the su.strate" This extra adhesive and ti/ht of ed/es and terminations ma-e

impossi.le and unnecessary the .ac- wrappin/ of openin/s and terminations"

%aul-in/ sealants for perimeter seal around windowdoor frames and other wall

penetrations shall .e applied in spaces constructive created .etween flashin/ caul-in/

mem.er or windowdoorother caul-in/ mem.er of frame and the .asecoat reinforced with

mesh" This /ap is smaller than classical 1oints around openin/s and not penetrates the

5=

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insulation system" *ealant .ac-er road is not applied on this systems the role of .ac-er rod is

ta-in/ over .y closed cell polyurethane expandin/ foam with many otter .enefits" $lso

polyurethane foam installed around constructive elements will ta-e over dilatations and

contractions of insulation system and windowdoorother frame"

It is an o.1ect of the present invention to provide a system for perimeter seal around every

constructive element which penetrate the wall and the insulation claddin/ further called

sealant ensem.le system"

$pply primer to .asecoat surfaces" 0rimer is a water!.ased pi/mented acrylic coatin/ to

prepare surfaces for finish" 0rimer may .e omitted if is not re9uired .y the manufacturer:s

product data sheets for the specified finish coat or otherwise specified for the pro1ect"

$dvanta/eously the exterior layer is a stucco!type exterior finish which is applied to the

exterior surface accordin/ to -nown procedures and techni9ues" )sually finish coat is acrylic

polymer!.ased synthetic finish inte/rally colored and textured and is selected .y architect"

The principal wea-ness in the prior N0!EIF* with direct applyin/ the extruded

polystyrene G0* layer is that G0* are ri/id .oards usin/ polyurethane stic- foam as adhesive

without any fasteners need a perfectly flat surface" Is -nown in construction industry that

exterior wall surfaces are not always perfectly flat" *u.strate surface irre/ularity shall .e not

more than 5B inch +4 mm, for sheathed su.strate and not more than 5C inch +3"C mm, four

masonry and concrete su.strate within any C feet +5

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Expanded polystyrene E0* shall not .e in contact with any terminations or penetrations

such7 windows and doors flashin/s air conditionin/ and otter wall components trac-s and

constructive expansion 1oints cornices and parapets especial with exterior environment"

8hen is install E0* shall -eep at least 5 inch +4B mm, distance around every wall

components and to every wall termination" This space with the /ap of extruded polystyrene

+G0*, layer is to .e filled with polyurethane closed cell foam silent" On ed/es without trac-s

or casin/ .eads E0* can .e replaced with C!3 inch +5=5!5@< mm, of G0* .oard and ed/e

wrapped to the su.strate with reinforcin/ fa.ric em.edded in impermea.le mem.rane

material .efore applyin/ lamina"

The E0* layer is also necessary to accommodate .uildin/ movements contractions and

dilatations .ein/ elastic material especial when N0!EIF* is applied to multi level .uildin/s"

The E0* layer also provide enou/h space a.ove construction elements to em.ed the flashin/

in expanded polyurethane closed cell foam sealant and it ad another (!value of 4"B@inch

resistance to heat flow insulation"

Jet the o.1ect of the invention is to provide an EIF* for a .uildin/ that insures that wind!

driven water don:t penetrate the system and the dew point of the air occurs outside the EIF*

claddin/" On detailed description of the invention care have .een ta-en in the detailin/ of

termination points such as flashin/s sills 1am.s parapets ed/es corners and any openin/ or

protrusion and elements which penetrate the wall in an attempt to ma-e them impervious to

water and moisture"

It is another o.1ect of the invention to provide a process for the installation of a non!

permissive exterior insulation and finish system and also the sealant ensem.le system for

perimeter seal in order to resist to the effects of water vapor transmission and a.solute

humidity differential +vapor pressure differential, of .ou/ht inner and outer environmental

effects and also to eliminate the dew point inside insulation claddin/"

Examples of the more important features of the invention thus have .een summari;ed

rather .roadly in order that the detailed description thereof that follows may .e .etter

understood" There are additional features of the invention that will .e descri.ed hereinafter

and which will form the su.1ect of the claims appended hereto"

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#(IEF DE*%(I0TION OF THE D($8IN'*

FI'" 1 is a perspective view partially in section to show corner assem.ly su.strate

preparation and interior detail of a non!permissive exterior insulation and finessin/ system

+N0!EIF*, wall construction showin/ use and installation of starter trac- the non permissive

assem.ly layer of closed cell extruded polystyrene foam .oards G0* vertical and hori;ontal

control 1oints and the lamina accordin/ to the invention

FI'" 2 is a perspective view of N0!EIF* shown in FI'" 1 havin/ an inner extra layer of

expanded polystyrene E0* +e9uali;ation and extra insulation layer, accordin/ to one

em.odiment of the present invention

FI'" 3 is a perspective view of N0!EIF* wall assem.ly with pro/ressive process of

application showin/ a wall frame mem.er with air and vapor .arrier with situation of exterior

and interior corners and sta//er 1oints at all inside and outside corners containin/ the E0*

layer .efore applyin/ lamina +the exterior weather!resistant coatin/,

FI'" 4 is a plan view of N0!EIF* process of application with E0* insulation layer

showin/ a starter trac- mounted on the air!vapor .arrier .e/in wall insulation with 5 foot

+4="@ cm, piece of E0* .oard to minimi;e insulation 1oints ali/nin/ with sheathin/ 1oints and

E0* with G0* .oard 1oints and the adhesive applied on the .ac- of .oat E0* and G0*

.oards when are install in runnin/ .ond pattern

FI'" 5$ is a cross!sectional of G0* .oards ed/es L!type with lap 1oint ed/es modified to

create a deep V!1oint when are assem.led and a 55< inch +< mm, retraction of a.out 5 inch

+

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FI'" 7# is a front view of a.ove corner of the window shown in FI'" 6

FI'" 7% is a cross!sectional view of lateral part of the window ta-en /enerally alon/ the

line 22 in FI'" 6

FI'" ?D is a cross!sectional view of lower part of the window ta-en /enerally alon/ the

line 33in FI'" 6

FI'" 7E is a front view of lower corner of the window shown in FI'" 6

FI'" 8$ is a vertical cross!sectional view of throu/h the wall air conditionin/ unit

showin/ the a.ove flashin/ with the sealant ensem.le system and caul-in/ and down part

with seal and caul- accordin/ to the invention

FI'" 8# is a hori;ontal cross!sectional view of air conditionin/ unit showin/ the lateral

sealin/ and caul-in/

FI'" $ is a cross!sectional detail view of a.ove part of classical window frame installed

on wood frame with O*# su.strate havin/ N0!EIF* wall coverin/ and showin/ the

installation of flashin/ and sealants accordin/ to the invention"

FI'" # is a cross!sectional detail view of lateral part of a classical window frame

installed on wood frame showin/ the sealant ensem.le system

FI'" 1!$ is a cross!sectional detail view of a.ove part of a window frame installed on

masonry %2) wall covered with N0!EIF* claddin/ accordin/ to the invention

FI'" 1!# is a cross!sectional detail view of lateral part of a window frame installed on

masonry %2) wall covered with N0!EIF* claddin/ accordin/ to the invention

FI'" 1!% is a cross!sectional detail view of lower part of a window frame and metal sills

installed on masonry %2) wall covered with N0!EIF* claddin/ accordin/ to the invention

FI'" 11is a cross!sectional detail view of electrical .ox seal and caul- accordin/ to the

invention

FI'" 12 is a cross!sectional detail view of a sleeve wall penetration for pipes or other wall

penetrations accordin/ to the invention

FI'" 13$ is a further enlar/ed cross!sectional detail view of flashin/ area showin/ the

a.ove part of a window havin/ the flashin/ constructive attached and also showin/ the

sealant system

FI'" 13# is a further enlar/ed cross!sectional detail view of flashin/ area illustratin/ an

accessory flashin/ installed to a classical window frame with a distance from sheathin/

5C

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exterior surface to create the /ap for polyurethane foam sealant and insulation and also

showin/ the sealant ensem.le system

FI'" 13% is a further enlar/ed cross!sectional detail view of flashin/ area illustratin/

another invented accessory flashin/ used in same circumstances presented in FI'" 13# havin/

a different construction and .ein/ installed directly to the a.ove part of window and also

showin/ the sealant ensem.le system accordin/ to the invention

FI'" 14is a cross!sectional detail view of parapet termination accordin/ to the invention

FI'" 15$ is a hori;ontal cross!sectional view of N0!EIF* vertical termination showin/

the chan/e of insulation claddin/ with .ric- claddin/

FI'" 15# is a vertical cross!sectional view of N0!EIF* hori;ontal termination showin/

the start of insulation claddin/ a.ove .ric- similar to FI'" 15$

FI'" 16is a perspective view partially in section to show .oundless desi/n flexi.ility of

the N0!EIF* systems showin/ crown moldin/s aesthetical and control 1oints and .ands

accordin/ to the invention

FI'" 17is a cross!sectional detail view of a classical loo- sill showin/ the possi.ility to

create a hard stucco loo- stren/th and lastin/ over N0!EIF* accordin/ to the invention

FI'" 18is a perspective view partially in section of expansion structural 1oint showin/ a

desi/ned interruption in the continuity of insulation usin/ special desi/ned expansion 1oint

profiles as accessories of N0!EIF* seal and .ond to the su.strate and to the impermea.le

insulation accordin/ to the invention"

DET$ILED DE*%(I0TION OF THE

INVENTION

The present invention provides an impermea.le to water and non!permissive to vapors

exterior insulation and finish system /enerically called N0!EIF*" )nli-e exterior insulation

and finish systems -nown in the prior art the EIF* of the present invention provides a dou.le

layers of water and moisture protection one applied to the su.strate 5 a li9uid mem.rane 15

to .e moisture .arrier for inside vapors and an exterior weather and vapor .arrier 25 which is

created with extruded polystyrene closed cell foam insulation .oards +G0*, 3! special

5@

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assem.led 55+FI'*" 5$!5#, and sealed 45 to create a non!permissive insulation envelope of

the enclosure"

To ensure the success of this new system and concept is necessary to analy;e the materials

involved to create these systems accordin/ to the invention"

The su.strate shall .e en/ineered to withstand applica.le desi/n loads and wind loads and

free of forei/n materials such as oil dust dirt form release a/ents paint wax water frost and

other harmful materials" $ccepta.le su.strate may .e7

'lass 2at 'ypsum *heathin/ 5conf" to $*T2 %!55??

%ement Fi.er *heathin/ 5conformin/ to $*T2 %!55B3

Exterior 'ypsum *heathin/ 5 minimum 5< inch +5

control airflow and .ecame a line of defense a/ainst water intrusion and means to drain

intrudin/ water from exterior" %oncernin/ N0!EIF* which wants to .e impervious to exterior

water and vapors the role of air!vapor .arrier is to stop vapor diffusion from interior into the

insulation system" *uch mem.rane trowel!on applied water and air .arriers are sold

commercially under the trademar- of all presti/ious EIF* material products companies and

have the followin/ accepta.le texture testin/7

53

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8ater (esistance $*T2 D!

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assem.ly" $ir!vapor .arriers are intended to resist the air pressure differences that act on them"

2aterials 15 3! 35 45 and the assem.ly 25 that meet impermea.le performance

re9uirements are said to .e airvapor .arrier assem.lies" $ccordin/ to this another o.1ect of

this invention is to create a 1oint system 55 which can ensure the impermea.ility of G0* 3!

.oards assem.ly to create the non!permissive assem.ly 25"

$s shown in FI'"5$ the G0* 3!1oints must .e created as L!type with lap 1oint ed/es 55

redesi/ned to form an !@A an/le from 6=A normally an/le in .oth sides with a retraction of

55

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sealant material 45 perform the function to complete the air!vapor and water .arrier over the

non!permissive thermal envelope 25 on all 1oint intersections and termination areas" It serves

as an extra sealant over the closed cell polyurethane foam 35 36 37 38as well as actin/ to

prevent vapor diffusion air lea-a/e and water penetration as a first line of defense over the

pro.lematic areas"

To materiali;e sealant conditions of diffusion resistance and water impermea.ility the

vapor retardant sealant material 45must .e a hi/h performance polymer!.ased flexi.le

noncementitious water resistive mem.rane which resists vapor and water penetration and

eliminates air infiltration" *uch sealant material is sold commercially under the trademar- of

EIF* material products companies is desi/ned to .e use in con1unction with EIF* systems to

create continuous trowel applied vapor retardant mem.rane +15, already descri.ed with

$*T2 texture testin/ mentioned" The sealant material /enerally desi/nated at reference

numeral 45 it:s a similar polymer .ased li9uid mem.rane product .ut not necessarily

identical" 0articularly preferred material 45"for use in the present invention improvin/ the

moisture diffusion and other properties of the aforementioned sheathin/ mem.rane material

15 must .e desi/ned to provide a face!seal or .arrier to seal out water and moisture to have

.etter adhesiveness to extruded polystyrene and .etter tensile stren/th and elon/ation" The

recommendation7 noncementitious:: is .ecause other similar products uses cement mixed in

composition .efore application for stren/then .ut lose in elasticity and flexi.ility" Tensile

stren/th and elon/ation is a very important parameter for sealant material 45 to can ta-e over

contractions and dilatations of G0* .oards 3! lamina 7! and other elements"

2oreover a /eneral reinforcin/ of all 1oints of non!permissive insulatin/ assem.ly 25

with 1oints sealed 55 is applied on the outward facin/ surface" $ layer of .asecoat!adhesive

71 is applied to the outer surface and then lays the reinforcin/ mesh 72 into the uncured

.asecoat" $ second coat of .asecoat 73 is applied" $s a result the reinforcin/ mesh 72

.ecomes em.edded in the .asecoat" $ local reinforcin/ of G0* .oards 3!1oints can .e applied

in sensitive areas such as corners 56 around windows and doors and on ed/e terminations

directly into the sealant material 45usin/ self adhesive mesh +not fi/urate,"

$nother -ey element and material of present invention is the aforementioned expandin/

polyurethane closed cell foam sealant fi/urate in different situations and mar-ed with

numerals 35 36 37 38" $pplied to fill 1oints .etween not shiplap G0* 3!ed/es such corners

56

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56 or intermediary G0* dimensions 1oints 57 or to fill /aps .etween windowsdoors frame

8! 8!A 8!#and other wall penetrations ! 1 2and frame openin/s flashin/s 84 85 86

or accessories 1! 11and insulation ed/es 2! 3! polyurethane foam sealant 35 36 37or 38

is the perfect choice four sealin/ needs and may .e used to fill seal .ond and stop air and

moisture infiltration"

2easurements usin/ $*T2 E!

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to/ether with vapors which .rea- throu/h classical EIF* claddin/ +vapor diffusion, .ein/

accomplished all conditions of vapor condensation"

$ccordin/ to the invention N0!EIF* is /enerally desi/ned to .e impervious to water and

vapors excludin/ any intrudin/ water so that is why flashin/ is not desi/ned and assem.led

to drain water from interior .ut 1ust sheds water to the exterior"

$s seen in the perspective view of FI'" 6 and separately detailed in FI'" 13$ cross!

sectional detail the element flashin/ 84 a.ove windows and doors is constructive attached to

the windowdoor frame 8!" This is the ideal solution when is eliminated the 1oint .etween

construction element frame 8! !+windows doors air conditionin/ units, and flashin/ 84"

The construction element 8!is mounted as so to have a.out 5 inch +

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$ a continuous /ap around flashin/ 84 85from inside to outside of wall assem.ly is created

to .e fill with closed cell polyurethane foam 35" The polyurethane foam sealant 35is applied

in two sta/es first after the expanded polystyrene +E0*, 2!layer is installed .y fillin/ the /ap

.etween windowdoor frame 8! wall frame openin/ flashin/ 84 85.ac- flan/e and su.strate

sheathin/ 5 7 treated with the impermea.le mem.rane 15 and second after installation of

extruded polystyrene +G0*, 3!" If necessary the /ap can .e fill from interior of .uildin/" The

G0* .oards 3!will .e installed 5< inch +54 mm, a.ove the hori;ontal caul-in/ element 83of

flashin/ 84 or 85and excess polyurethane foam is cut to that level creatin/ a space for

silicone sealant 65" $ccordin/ to the invention the polyurethane foam 35seen outer is treated

with 1oint sealant material 45"

$s common element of all flashin/s used for N0!EIF* is the hori;ontal detail 83

perpendicular to .ac- flan/e of flashin/ situated a.out 5 inch +

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attached element 81 which form the caul-in/ 1oint .ecame also the drainin/ .oard to drain

pluvial water from exterior of construction elements 8! !"

$ll surfaces of closed cell polyurethane foam sealant 35apparent on exterior are cut rasp

and leveled +usin/ levelin/sendin/ tools, to the exterior surface of non!permissive insulation

layer 25 and treated with sealant material 45 accordin/ to the invention"

The attractive feature of the present invention and indicated a.ove the constructive

attached elements 81 82 83 which form the limit of caul-in/ 1oint as descri.ed and shown in

the drawin/ fi/ures is .ut a preferred em.odiment"

The silicone sealant 65is applied after the first part of lamina 7!is dried +flexi.le .asecoat

71and fully em.ed reinforcin/ mesh 72in .asecoat 73, and .efore finish coat 75" *ealant for

perimeter seal 65around windowdoor frames 8!and other wall penetrations ! 1 2shall

.e low!modulus desi/ned for minimum @=> elon/ation and minimum compression and

shall conform to $*T2 %!6

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create an impervious sealant ensem.le system around wall openin/s as follow from interior

conditioned space to exterior environment7

15air!vapor .arrier polymer .ased trowel applied to the entire su.strate sheathin/

surface with sheathin/ 1oints sealed 16 and terminations 17 18

25exterior air!vapor .arrier a non!permissive to vapor diffusion and weather resistant

insulation layer consistin/ in a special assem.la/e of extruded polystyrene G0*

.oards 3! with shiplap 1oints sealed 55

35closed cell polyurethane foam sealant continuously applied around openin/ from

interior to exterior which stic- seal and insulate the .ac- flan/e of flashin/s 84 85or

86and encapsulate G0* 3!and E0* 2! insulation .oards ed/es

45water and air!vapor retardant a hi/h performance polymer!.ased sealant material

trowel!on applied over outside surface of polyurethane foam sealant 35 and

interconnection with the non!permissive assem.ly 25 +G0* .oard 3!ed/es,

55the seal of 1oints of G0* .oards 3!in the process of creatin/ the non!permissive

assem.ly 25

65 low modulus silicone sealant continuously applied provide water!vapor ti/ht

performance and encapsulate the ed/e of reinforcin/ mesh 72 fully em.edded on

flexi.le .asecoat 71 73

75the outer layer of the rain screen or lamina 7! a superior elastomeric finish applied

after silicone sealant 65 create the loo- of the .uildin/ and offers protection for the

inner layers and insulation envelope components

85 86 or 84 flashin/s and 81 81A 82 83constructive elements of windowdoor

frame 8!and other wall and insulation penetrations ! 1 2 which surround the

element to create a caul-in/ 1oint"

The new *ealant Ensem.le *ystem around openin/s descri.ed a.ove advanta/eously

replace the classical system which re9uire a 1oint .etween the constructive element and

insulation .oard ed/es .y completely separate EIF* from windowsdoors and other elements"

To create this separatin/ 1oint classical EIF* re9uire a strai/ht line around openin/ insulation

shall .e held .ac- from ad1oinin/ materials around penetrations such windows doors and

mechanical e9uipment a minimum of 4C inch +56 mm, for sealant application completely

encapsulate insulation .oard ed/es .y mesh reinforced .asecoat and .ac-!wrappin/

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+continuation of reinforcin/ fa.ric around the ed/e of insulation .oard and onto the su.strate

in .ac- of the insulation," The sealant system endorsed to seal the /ap +which is continuous

free for air circulation .etween interior of .uildin/ and exterior environment, is a .ac-er rod

sealant followed .y silicone sealant for perimeter seal" Virtually the silicone sealant is the

only defense a/ainst unwanted water inside wall cavity"

Havin/ thus descri.ed elements of a standard EIF* installation attention is invited to the

fact that the su.1ect matter of this invention is directed to a sealant ensem.le system that offers

multiple seals" *eal and .ond the constructive elements 8! ! 1 2 to the wall frame

openin/ +metal or wood studs 1 2, with expandin/ polyurethane foam 35 over!seal the

exterior surface for water and vapor penetration with sealant material 45 and caul-in/ 65

applied on a special created 1oint" The mesh reinforced .asecoat 71 72 73stop .ehind and

under the caul-in/ 1oint delimitation elements 81 82 83 without .ac- wrappin/ +not

applica.le and unnecessary,"

$lso draina.le EIF *ystems re9uires continuation of watervapor .arrier to the interior

face of wall openin/" )sin/ same li9uid mem.rane material with reinforcin/ fa.ric to treat

sheathin/ 1oints as for water!vapor .arrier or flashin/ mem.rane the rou/h openin/ +window

door others, is protect for intrudin/ water and is confi/ured to shed water to the exterior of

the system" Installation of windowsdoors and other elements come after EIF* installation

with many detail contradictions such as flashin/ installation a.ove windowsdoors and others

or silicone sealant applied around constructive elements .efore finish coat +a code

re9uirement,"

$ccordin/ to the invention windowsdoors 8! and other elements ! 1 2 special

desi/ned are installed prior to N0!EIF* the polyurethane foam sealant 35will seal all 1oints

.etween the framin/ mem.ers 1or 2of the rou/h openin/s and su.strate sheathin/ 5or7"

*ealin/ these 1oints +the /ap, is only for inside wall cavity vapors and to don:t permit inside

vapors to permeate .ehindinside insulation and not to protect the system a/ainst precipitation

or condensation water" $lso the polyurethane foam sealant 35 insulate the constructive

element 8! ! 1 or 2 which are considerate a thermal .rid/e .etween exterior cold

environment and wall frame 1or 2and sheathin/ 5or 7 eliminatin/ the dew point conditions

in that area"

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(eferrin/ now in detail to the accompanyin/ drawin/s and particularly to FI'" 1 there is

illustrate a wall assem.ly of N0!EIF* havin/ the impervious layer 25directly applied to the

su.strate sheathin/ 5 or 7" The .uildin/ wall is /enerally constructed of a frame which

typically includes a plurality of studs 1 a sheathin/ 5 and an external wall coverin/

+claddin/," The N0!EIF* claddin/ presented on this invention and seen in the perspective

view partially in section of FI'" 1 consist of a succession of components and application

procedures" $s is -nown in the relevant art and a.ove descri.ed the sheathin/ .oard 1oints

and corners 16are treated with specially desi/ned /rid tape completely em.edded on air!

vapor retardant material and a air!vapor .arrier 15is continuously applied over entire su.strate

surface" The air!vapor .arrier 15is an improvement to a lower vapor diffusion rate under 5

)* 0erm +@?"

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2!provide a /reat wor-a.ility to create a flat surface necessary and o.li/atory to install the

outer layer the ri/id extruded polystyrene G0* 3!" 8ays and means to create inherent flatness

as support and su.strate to install the non!permissive layer 25are provided on this invention

.y raspin/ sendin/ and levelin/ 2!Roperations performed over the entire E0* 2!mem.er

+e9uali;ation component, of N0!EIF* claddin/" The inner extra insulatin/ mem.er is also

.eneficially when install flashin/s 84 85or 86especially not constructive attached flashin/ 85

or 86to have enou/h thic-ness and technolo/ical facility to easy em.ed flashin/ 85or 86in

polyurethane foam sealant 35" First insulatin/ layer 2! shall .e held .ac- installed from

openin/ ed/e 5!< inch +4B!@5 mm, in not flashed sides and a.out 5< inch +54 mm, up to

top flashin/ 84 85 or 86vertical flan/e as shown in FI'" 3 and in all detail fi/ures" The

extruded polystyrene .oard 3!will easy overlap the flashin/ 84 85 or 86 vertical flan/e .ein/

install 5< inch +54 mm, a.ove the hori;ontal element of flashin/ 83" $lso G0* layer 3! is

installed close to the sides of constructive element 8! !or 1 1ust enou/h to have space to

fill the /ap with expanded polyurethane foam 35" $lso E0* 2!mem.er will help N0!EIF* to

accommodate .uildin/ movements wall contractions and dilatations .ein/ more elastic then

extruded polystyrene G0* 3! and will ad an extra insulation of 4"B@ (!value per inch"

(eferrin/ now to the view of FI'" 1and also to the view of FI'" 2 the non!permissive

layer 25is adhesively installed eater on e9uali;ation component 2!or directly to the su.strate

sheathin/ 5or 7treated with the sheathin/ mem.rane 15" The process of application as seen

on FI'" 4is easy and convenient a /irdle of stic- polyurethane foam 33is applied on the .ac-

side of the extruded polystyrene foam 3! followin/ the perimeter of G0* 3! .oard and

sinusoidal in field a.out C inch +5= cm, .etween ri..ons" The G0* .oards 3! of the non!

permissive insulation assem.ly 25 are 1ointly installed in a runnin/ .ond pattern and

interloc-ed at corners"

$s illustrated in FI'*" 1 2 3 and 4 inside and outside corners 56and not shiplap 1oints 57

of G0* .oards 3!are assem.led with a /ap of 5C! 4C inch +3"@!56 mm, .etween not shiplap

G0* 3! ed/es to .e fill with expanded polyurethane foam sealant 36 a /ood caul-!and!seal

+foam!and!seal," Extra expanded polyurethane foam 36+the expansion rate durin/ the curin/

process, is cut and rasp to a strai/ht level and treat with polymer!.ased sealant material 45 to

create a impervious to water and vapors interconnection"

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$s seen in the cross!sectional view of FI'" 5$ detail of L!type shiplap 1oinin/ ed/es is

reinvented so as to after assem.ly to create a deep V!1oint .etween G0* 3!1oinin/ .oards"

This 1oint 55is created symmetrical on .oth sides .y inclination of L!type ed/es from interior

to exterior with an an/le of @A to the normally perpendicular" $lso a 55< inch +< mm,

retraction of a.out 5 inch +the hori;ontal le/ of trac- 1!" The standard starter trac- 1!+not draina/e, which is prefera.ly

plastic may .e variously constructed for attachment and cementation 17 to the air!vapor

resistant mem.rane 15" $ccordin/ to the invention insulation .oards 2!and 3!ed/es will .e

completely encapsulated in closed cell expanded polyurethane foam 37 which expand in the

space created and seal the .ottom ed/e" The extra foam len/thways the starter trac- 1!is cut

rasp and treat with sealant material 45 in the process of exterior sealin/" The location of

starter trac- 1!is usually limited to terminations at foundation" $lso metal or plastic corner

accessories 11are re/ularly necessary to .e use since strai/ht exterior corners are difficult to

.e created .ecause of interloc-ed interspaced and dou.le seal with polyurethane foam 36and

sealant material 45 of G0* .oards 3!" In practice exterior plastic or metal corners 11will .e

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installed after the sealant material 45is completely dry usin/ the .asecoat 71 the first layer

of lamina 7!"

Finely FI'*" 1 2 and 6 shows /radually the exterior weather resistant assem.ly

/enerically called the rainscreen or lamina 7!" It is well -nown and understood in the relevant

art that the reinforcin/ /lass fi.er mesh 72is installed onto the insulation su.strate 25.y first

applyin/ a thin coat of cementitious .asecoat 71+5==> acrylic polymer .ased re9uirin/ the

addition of 0ortland cement, and then layin/ the reinforcin/ mesh 72 into the uncured

.asecoat 71" $ second layer of .asecoat 73 is applied and forced to voids in the reinforcin/

mesh 72 and allowed to dry" $s a result the reinforcin/ mesh 72.ecame em.edded in the

.asecoat 71 73" To complete the wall a textured and inte/rally colored finish 75 is trowel!

applied and floated to the desired loo- also as -nown to one s-illed in the art" 0roduct

specifications for re/ular water!.ased acrylic coatin/s and especially for elastomeric and

specialty finishes re9uire acrylic coatin/s 74to prepare surfaces for finish 75applyin/"

$s later showed in detail FI'" 6depict a N0!EIF* claddin/ construct with extra insulation

mem.er 2! perspective view and section throu/h wall assem.ly and redesi/ned window

frame 8! in accordance with this invention" &nowin/ that all constructive elements 8! !

1 2are installed prior to .e/innin/ of N0!EIF* installation as a.ove descri.ed and rou/h

openin/s are not seal .y extendin/ the airvapor resistive .arrier 15to the interior face of the

wall openin/ pre!installation of constructive elements 8! ! 1 2+.efore claddin/, have a

/reat advanta/e and its prefera.le in construction industry" $ccordin/ to the invention closed

cell polyurethane foam sealant 35seal the /ap created around openin/ perimeter for interior

wall cavity vapors exterior vapors .ein/ stopped .y the impervious layer 25" The air!vapor

resistive mem.rane 15 is applied to coat all sheathin/ 5 or 7 visi.le surface polyurethane

foam sealant 35 which seal the /ap will overlap sheathin/ mem.rane 15 a.out 5!< inch +

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transitions .etween vertical elements 82 and hori;ontal lower element 81 and transition to

flashin/ which have a perpendicular position of caul-in/ element 83 to the side vertical

element 82" $lso the insulation G0* .oar 3! shall .e installed so that its 1oint 55do not

coincide with the corners of the openin/ and to .e additionally reinforced usin/ M.utterfly

strip of mesh 72 laid at a C@A an/le to the corner when lamina 7!is apply +not fi/ured,"

(eferrin/ to FI'*" 8$ and 8# in the most preferred em.odiment the new sealant system

assem.ly of the instant invention is applied to air conditionin/ unit ! a constructive element

that penetrate the wall havin/ lar/e utili;ation in the hotel industry" The flashin/ 84 is

constructive attached also the caul-in/ delimitation elements 81 82 83" 0olyurethane foam

sealant 35will seal the perimeter of air conditionin/ unit ! insulation .oards 2! and 3!

ed/esand also fix the element !to the wall frame" *ealant material 45 will seal the outer

surface of the non!permissive layer 25 around openin/ accordin/ to the invention"

$pplication of silicone sealant 65 after the reinforcin/ mem.er 72em.edded in .asecoat 71

and 73finali;e the sealant ensem.le system"

$s previously mentioned the new N0!EIF* is contemplated to .e successfully applied to

classical windowdoor systems and also to various wall structures" In this re/ard FI'*" $

and # show a cross sectional detail view of a.ove and lateral part of classical window frame

8!A installed on wood frame 2with O*# su.strate sheathin/ 7" The flashin/ 85+prefera.ly,

is fastened attached to the window frame 8!A+not to the wall sheathin/ when usin/ flashin/

tip 85, with outdistance of a.out 5 inch +

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2!layer" It will .e /enerally appreciated that the permissive mem.er +E0* 2!, is to close to

the exterior environment existin/ suspicions of vapor penetration into the system and for that

intersections with classical constructive elements are treated as terminations of the system

+FI'*" 15$ and 15#," First layer of E0* 2!is installed includin/ the .and of G0* 31around

window 8!A with a retraction of a.out 5 inch +4B mm, from openin/ ed/e" The /ap created

.etween openin/ frame window frame 8!A and insulation .oard ed/e 31 is fill with

expandin/ polyurethane foam sealant 35 cut and rasp to that level" On this sta/e a pre seal

with sealant material 45is recommended to seal the expanded polyurethane foam 35surface

+not fi/ured," The non!permissive layer 25is then installed and G0* .oards 3! shall .e 5