Roof insulation
Good insulation starts with understanding.
Which insulation method fits depends on the existing roof structure. We explain the options and advise what makes the biggest technical difference.
Understand first. Then build.
Illustrative visualisation
What we pay attention to
Between the rafters
Insulation between the timbers. Suitable when the roof is tackled from inside; the rafters remain thermal bridges.
Over-rafter insulation
A continuous insulation layer above the rafters, often combined with a full roof renewal.
Airtightness
A properly sealed airtight layer matters as much as the insulation thickness.
Thermal bridges
Junctions at the wall plate, ridge and roof windows determine the real performance.
Moisture control
The right order of layers prevents condensation inside the structure.
Energy improvement
Roof insulation is often the measure with the biggest effect on comfort and energy performance.
Our approach
No insulation method is always better. The right choice depends on the existing structure, the desired interior finish and any other planned work.
We show you the difference with simple cross-sections and explain which junctions need attention.
Often combined with