size being 12 inches wide by 36 inches long. Metric shingles are 13 1/4 inc 39 3/8 inches
- SHINGLAS roofing shingles
- ANDEREP underlay
- TechnoNICOL superdiffusion membrane
- TECHNOLIGHT rock wool
- TechnoNICOL vapor barrier film
- Wooden planking (OSB-3, WBP plywood)
- Thin lathing
- Beams for ventilation channels
- Rafter
- Step lathing under the insulation
- Attic ceiling