Building Regs

  Simplified Building Regs for loft conversions 

Insulation 

     Loft Conversion U-Values

    Insulation Thicknesses

    Insulating between & over rafters

Fire Regulations

  Fire safety guidance

  Upgrading existing doors

Joist hangers

long legged joist hangers

Loft stairs

    stair design

     Loft Stairs -Building Control Guide

   Dormer leadwork

Detailed drawings like the one below showing a wide range of installations are available from The Lead Sheet Association