SIPs are an eco-friendly method of construction:
Environmentally Friendly Materials
The outer skins of SIPs panels are manufactured from Orientated Strand Board (OSB). This is made from young fast growing trees which are deliberately grown in plantations accredited by the Forest Stewardship Council (FSC). Young trees produce oxygen and remove more carbon dioxide from our atmosphere than mature trees and are renewable, recyclable, bio-degradable and non-toxic. The core insulation is Polyurethane foam (PUR) which is CFC and HCFC free and has an ozone depletion potential of zero.
Reduced Timber Usage
To make a product with the same strength, timber uses 20% of the energy needed for concrete. Timber is naturally low in thermal conductivity and an excellent insulator. It is 15 times better as an insulator than concrete; 400 times better than steel and 1770 times better than aluminium. A 25mm timber board has better thermal resistance than a 114mm brick wall. When compared with traditional timber frame buildings, SIPs construction uses approximately 50% less wood, which all adds to the positive environmental impact of this form of construction.
High Insulation Value
Enviropanel Structural Insulated Panels provide an extremely high thermal performance and U-values can be as low as 0.15W/mēK. There is minimal thermal bridging compared to conventional construction and the insulation will not sag or slump over time. The construction is draught free and is warm in the winter and cool in the summer. This drastically reduces energy consumption which leads to a corresponding reduction of up to 60% in carbon dioxide emissions from the burning of fossil fuels for the lifetime of the building.
Building with SIPs produces less waste than other forms of construction. The panels are engineered in a controlled environment, reducing the amount of waste produced on the building site and allowing unused materials to be recycled.
In 1998 Sir John Egan issued a report “Rethinking Construction” on the scope for improving quality, efficiency and environmental considerations in UK construction. Enviropanel SIPs meet many of the requirements stated in the report.