Insulation fixed to the bottom of the roof structure - nailed: thick boards with Z-profile

EUROTHANE is fastened with screws or twisted nails at the bottom of the bearers.

The connection between the boards is ensured by the combination of a 'W' type border finish and a Z-profile (5).

It is prefered to make three high-quality fastenings per bearer at 20 cm from the ends and in the centre of the board width. The use of screws or twisted nails and washers is recommended. In each case, the fastenings have to penetrate the wood with at least 3 cm.

LEGEND

1. Corrugated sheet
2. Bearer
3. EUROTHANE
4. "W" type border finish
5. Z-profile
6. Nails or screws

Recticel points to the risk of accumulation of moist behind the bearers.

Especially with metal roof panels, this construction thus has to be avoided