Verified by manufacturer 5 months ago
BBA Agrément Certificate
Certificate type
Pavatex pitched roof sarking system (15-18 degrees), with Pavatex DB 3.5 membrane (or OSB), Pavaflex insulation, and Isolair Multi with Pavatex ADB membrane, mechanically fixed.
External roofing applications.
Pavaroof Pitched roof sarking system for roofs with a pitch of between 15–18 degrees uses Pavatex DB 3.5 membrane or OSB as the air-tightness membrane, with Pavatex Pavaflex natural wood fibre or Pavatextil P recycled fabric, friction fitted between the rafters. Isolair Multi (also wood fibre) is installed above the rafters and mechanically fixed. The Pavatex ADB membrane must be used as a breather membrane over the Isolair Multi on pitches between 15–18 degrees.
Features and benefits:
Color | Other Guidance for specification option: User to specify. |
Material | Wood |
Uniclass | |
CAWS | K11/695 Rigid board insulation fixed as roof sarking K11/55 Rigid board insulation fixed as roof sarking |
Boarding | |
Material | Wood fibre Isolair boards and Pavaflex insulation.Guidance for specification option: Isolair:
Available in multiple thicknesses, consult manufacturer for details. Pavaflex:
Available in multiple thicknesses, consult manufacturer for details. |
Fasteners | Isolair: Mechanically fixed; Pavaflex: Friction fitted. |
Membrane | |
Material | Pavatex ADB.Guidance for specification option: For pitches between 15° and 18°, Pavatex ADB breather membrane must be used. The membrane should be installed directly over the boards i.e., under the counter and tile battens. |
Fasteners | Mechnically fixed. |
Counterbattens | |
Material | Timber.Manufacturer guidanceTiled or slated roofs with 50 x 25 mm tile batten: 25 mm minimum counter-batten height. To avoid splitting during driving the screw fixings, a 40 mm ±2 counter-batten height is suggested. Vapour closed without tile batten (e.g. metal or synthetic membrane on ply): 50 mm counter-batten. |
Fasteners | Pavatex by Soprema approved fasteners. |
System accessories | Manufacturer guidanceSeek advice from Soprema for further information. |
Execution | Manufacturer guidanceInstallation must be carried out by a competent person and in accordance with Pavatex by Soprema's installation manual. |
Vapour control layer | Pavatex DB3.5. OSB. Manufacturer guidanceVapour open air tightness layer. |
Waterproof covering | Tile. Slate. Zinc. Membrane. |
Contains Red List materials | No |
Country of material origin | Manufacturer guidanceUnited Kingdom/ France. |