Roof Audit

The loft has 200mm (8inch) of glass fibre insulation.
The loft hatch has draught seal but requires insulation.
The recessed velux in the single story kitchen extension has 75mm of polyurethane sheet insulation on all sides of the recess.
Because the kitchen spotlights generate a lot of heat they are not covered with insulation. They could also be a source of air entering the kitchen.