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BUILDING REGULATIONS PART 1LA 2006
The 2006 Dwelling Emission Rate (DER) is currently set at 20% improvement over the 2002 Regulations. There is considerable complexity and flexibility in design criteria to meet carbon dioxide emission rates but the table below shows the best 'U' Value starting point to avoid too many iterations in showing compliance to SAP 2005.
The Scottish Building Regulations have fixed 'U' Value requirements according to whether or not the heating boiler is 'A' rated.
| ELEMENT | 2002 U Values (W/m²K) | 2006 U Values (W/m²K) | Typical Foam Depth mm | 'A' Rated Builders (U Value) | Others (U Value) |
| Horizontal Ceiling | 0.16 | 0.13 | 120* | 0.16 | 0.16 |
| Pitched Roof Sloping Ceiling | 0.20 | 0.16 | 150 | 0.20 | 0.18 |
| Flat Roof | 0.25 | 0.20 | 110 | 0.25 | 0.22 |
| Walls | 0.35 | 0.27 | 75 | 0.30 | 0.27 |
| Floors | 0.25 | 0.22 | 50 | 0.25 | 0.22 |
| Sloping ceiling Loft Conversion | 0.30 | 0.20 | 120 | 0.20 | 0.18 |
* Calculation based on unventilated loft space with 100mm mineral fibre at loft floor level. Air leakage not to exceed 10m³/m²/hr @ 50Pa
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Capital Insulation provides the best local service for London and the home counties. We have 15 years of experience in every aspect of Sprayed Polyisocyanurate Rigid Foam...
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Whether domestic, commercial or agricultural, we GUARANTEE the best price throughout the south. Capital Insulation have British Standards materials, comprehensive guarantees, public liability insurance and do NOT sub-contract...
Technical Data
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Our technical information relates to Spray Combustion Modified Polyisocyanurate Rigid Foam. It is available for internal and external purposes. Capital Insulation provides: Data Sheets, Method Statements, Risk Assessment and Fire Ratings. We also advise on exact U/values...