Pavatex Pitched Roof System Over 18° - Pitched Roof Insulation System
Verified by manufacturer 5 months ago
BBA Agrément Certificate
Certificate type
Pavatex pitched roof sarking system, with Pavatex DB 3.5 membrane (or OSB), Pavaflex insulation, and Isolair Multi, mechanically fixed.
Application
External roofing applications.
Description
Pavaroof Pitched roof sarking system for roofs pitched steeper than 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.
Features and benefits:
- Sustainable wood fibre boards are made from waste wood that is collected from various sawmills, heated and then pressurized.
- Good heat storage capacity.
- Good acoustic and thermal insulation properties.
General information
Color | Other Guidance for specification option: User to specifiy. |
Material | Wood |
Uniclass | |
CAWS | K11/55 Rigid board insulation fixed as roof sarking K11/695 Rigid board insulation fixed as roof sarking |
Specification data - Pitched board roof sarking systems
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 | Manufacturer guidanceBreather membranes are not necessarily required over the Pavatex Isolair boards for roof pitches >18° due to the water resistivity of the Pavatex Isolair boards - BBA Cert 20/5770. A breather membrane may be included if desired or if traditionally used as per local practices. The membrane should be directly over the boards i.e., under the counter and tile battens. |
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 | Pavafix.Guidance for specification option:
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. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Manufacturer guidanceUnited Kingdom/ France. |
Third party certifications
BBA Agrément Certificate
ISOLAIR AND PAVATHERM-COMBI SARKING BOARDS - Wood fibre material of different densities for use as insulating sarking boards on pitched roofs of dwellings and other buildings with similar temperature and humidity conditions.
Literature
Pavaflex - Flexible insulation board
Isolair Multi TDS
Pavatextil P Natural Cotton Fibre Insulation