The roof is covered in Spirtech 200. I never planned to cover the roof in this stuff, but Point.P. gave us quite a large discount on it. Spirtech 200 is a breathable waterproof membrane, though its probably not that waterproof anymore due to the amount of staples in it!
The Spirtech 200 was fitted in the dark, we were running out of time and thought it would give the osb roof deck some protection. We held it in place with staples and secured the edges with strips of scrap wood.
Spirtech 200 is a …. Produit constitué d’un film perméable à la vapeur d’eau entre deux films non-tissés en polypropylène. Traitement anti-abrasion et hydrophobe permettant son utilisation en supports continus … or 2 layers of water permeable non-woven, hard wearing polpropylene fabric.
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