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‘Woodcrete – cost effective sustainable walling’
John Flower - Commercial Director Durisol UK
Overview
?Who are/ What is Durisol
Why use Durisol Products
How the Durisol System Works
Durisol Wall Form System- USPs
Examples
Who/what are Durisol?
• Product has been available for over 50 years• Production facilities – Austria, Canada, North
America, Holland, Israel, Russia, Japan.• Licence for UK & Ireland- Factory in Crumlin,
Gwent• Replacement for traditional masonry wall
construction.• Forming a concrete framed building
What is Durisol?
• Durisol is a proprietary material sometimes called “woodcrete”
– Clean recycled waste wood is “mineralised” and used as a replacement for aggregates in a concrete mix, producing a durable material with an open matrix» Fire proof» Rot proof» Lightweight» Resistant to wood boring insects
Forming Durisol Walling
• Durisol is cast into wall form units - PFA• Uniform and consistent sizing (engineered finish)• 4 No sizes (170 – 365mm wide) - Lightweight under
CDM regs - only 8 units required per m2• Dry stacked without mortar from foundations• Use of high slump concrete fill guarantees void free fill
of forms• Easily altered on site• Units can be self palletised - minimising site waste –
waste can be returned
Factory
Why use Durisol products?
• U values of 0.19 as standard• 15-25% cost saving against other structural
envelope systems• High thermal mass• Rapid build times – 5 times quicker• Recycled materials, low embedded energy• Knauf Ecose© Insulation already incorporated• Proven up to 26 storeys • Fully UK Certified – BRE A, BBA
Markets
• Schools, Colleges, Universities• Social and low cost housing – HA’s• Health care – hospitals, nursing homes, clinics• Student accommodation, hostels, hotels• Residential builds – from self build to major
housing developments• Commercial buildings, offices, warehouses• Basements, free standing retaining walls, civils
How the system works
How the system works
How the system works
How the system works
How the system works
How the system works
How the system works
S StandardC CornerF Face-m Modified
Durisol USPs
• Cost- typical complete structural envelope less than £60 per m2 (includes laying & concrete fill)
• No need for bricklaying skills• Speed- typical stack and fill time better than 3m2
per hour• Excellent fire, thermal and acoustic performance• Sustainable- 80% recycled wood, low embedded
energy• Resistant to damage- zero maintenance
Apartments - Austria
Marlborough - Flats
Braunton Caen School
Braunton Caen School
“The sound insulation is fabulous! There is a noticeable positive difference when you walk through to the new part of the school. The sound Insulation adds to a feeling of calm and there is no echo, even in such a lofty open space. This is particularly good for classrooms for young children as it adds to the comfort of the space and allows for calm and quiet as well as discussion and play. Thank you”Karen Crutchfield, Head Teacher, Braunton School
Other Schools
Nursing Homes
Ilfracombe - Flats
Ilfracombe
High Rise
What will this mean in terms of cost, energy and CO2 Savings?
Year on Year Cost Saving £20,000+Year on Year CO2 Reduction 94 Tonnes
Youth Centre
Cullompton Library Exeter
Storage
Swimming Pools
Retaining Walls
Durisol Customers
Noise Barriers
Noise Barriers
Fire Test – Dec 08
Durisol – How we compare
CSH 4 CSH 5 CSH 6 Passivhaus Durisol0.13 0.13 0.13
U values 0.20 0.15 0.15 >0.15 0.15 with standard D365 with PIR insulation
Acoustic for party walls
43db 43db 43 db 43db 4 pts for 8db over 43 db
waste management
3 points for returning Durisol broken units
Psi ‘ψ’ Value 0.04 0.04 0.04 0.04 0.01
Air Tightness(@50 Pa or less)
3 3 3 0.6 3 with plaster board but with wet plaster Passiv standard achieved.
Simple, elegant, energy efficient’
REVOLUTIONARY INNOVATIONS BUILT INTO PASSIVHAUS
LEICESTER MERCURY
“We believe this is a revolutionaryconcept which will lead theway for commercial buildings ofthe future and to have a real breakthrough in office building”
Tom Watkinson, managing directorof Raynsway Properties
