Your specification

Below you'll find your specification. If you would like to discuss this with us, please give us a call on 01392 861763.

exterior

Single Ply membrane/GRP/Bitumen

18mm Ply, fixed through to joists

22mm BeltermoTop wood fibre sarking board

200mm joists @ 600mm ccs, fully filled with SteicoFlex 036 flexible wood fibre insulation

11/15mm OSB3

Ampatex Variano 3 variable vapour control membrane, taped with Ampacoll INT airtightness tape.

25mm counter-battens

12mm plasterboard

interior

Suggested details

The 3D model below is how we’d suggest you build up the above roof spec.

Click on the model to view. Full screen icon in the bottom right corner.

If you’d like to learn about how to design with or install wood fibre insulation in this and many other scenarios, please head over to our free online training area at Fibres.

U-Value

0.176 W/m2K

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