What insulation do I need for a double garage conversion in Bedfordshire?

A double garage conversion in Bedfordshire needs insulation to the floor, walls and roof to meet current Part L thermal standards, because garages were never designed to be warm or airtight. Typical published local authority targets are around a floor U-value of 0.25 W/m2K, walls near 0.28 W/m2K, and a pitched roof around 0.16 W/m2K, though your building control officer confirms the exact specification for your property. Single-skin garage walls usually need an insulated inner skin or a timber-framed panel, and all insulation should be linked together to avoid cold spots and thermal bridging. We agree the full insulation build-up with you before work begins.