STRATEC® II is a versatile and resistant synthetic very highly breathable screen (vapour permeable) used as roof tile underlay in ventilated or non-ventilated slated pitched roof. It will also prevent the ingress of wind-blown rain, dust or snow. STRATEC® II is also used as rain barrier (underlay for walls).
On rafters with corrosion-resistant staples or galvanized clout nails as appropriate.
Either secured to the support with counter battens at least 12 mm thick to create a drainage and vapour dispersal space between the product and the tiles.
May be used over sarking boards of softwood and either with continuous insulation or insulation placed between the rafters.
Maximum rafter spacing: 60 cm.
Minimum overlaps : 10 cm (20 cm for <20% slope).
STRATEC® II installation can be carried out easily by slaters / tilers experienced with this type of product.
It may be used as temporary waterproofing during 8 days.