Draught-Free Farmhouse - High-Performance Roof Insulation with airtightness to converted loft

A converted loft in a Flamstead farmhouse that was cold and draughty. The insulation was only half the answer.

We put flexible Rockwool batts between the rafters across the loft ceiling and roof, and over them the Pro Clima airtight system, with the vapour control membrane taped at every lap and junction. The membrane is what stops the draughts. The batts are what stop the heat.

Photograph Roof insulation and airtightness works

02Flamstead farmhouse, before insulation

Flamstead farmhouse, before insulation

03Loft before insulation works

Loft before insulation works

04Loft before insulation installed

Loft before insulation installed

05Loft before insulation installed

Loft before insulation installed

06Flexible Rockwool batts installed between rafters in loft area

Flexible Rockwool batts installed between rafters in loft area

07Flexible Rockwool batts installed between rafters in loft ceiling and roof

Flexible Rockwool batts installed between rafters in loft ceiling and roof

08Installation of Pro Clima airtight system, Intello Plus vapour control membrane taped with Tescon Vana tapes

Installation of Pro Clima airtight system, Intello Plus vapour control membrane taped with Tescon Vana tapes

09Installation of Pro Clima airtight system, Intello Plus vapour control membrane taped with Tescon Vana tapes

Installation of Pro Clima airtight system, Intello Plus vapour control membrane taped with Tescon Vana tapes

10Installation of Pro Clima airtight system, Intello Plus vapour control membrane taped with Tescon Vana tapes

Installation of Pro Clima airtight system, Intello Plus vapour control membrane taped with Tescon Vana tapes

11Installation of Pro Clima airtight system, Intello Plus vapour control membrane taped with Tescon Vana tapes

Installation of Pro Clima airtight system, Intello Plus vapour control membrane taped with Tescon Vana tapes