L55/70

The Roofer L55 vapor-waterproofing membrane is used for all types of pitched roofs, external and internal insulation of walls and floors.

When installing an insulated roof, the Roofer L55 vapor-waterproofing membrane is unwound and cut directly on the rafters over the insulation with the marked side facing uphill. Installation is carried out across the rafters, starting from the bottom of the roof, with a mandatory overlap of at least 150 mm at vertical and horizontal joints. The joints are fastened in lap joints, and with a roof slope of less than 30°, the lap joints must be at least 200 mm. The stretched membrane is fixed to the rafters with counter rails. The membrane must be fixed in a tensioned position with a sag between the rafters of 10 to 20 mm. A crate or solid plank flooring is mounted on the counter rails, depending on the type of roofing material. A ventilation gap of 30-50mm should be left between the membrane and the insulation, and not less than 50mm between the membrane and the roof. The lower edge should ensure that moisture is drained from the membrane surface into the gutter. For the removal of water vapor and condensate, it is important that the under-roof space is additionally ventilated; for this, ventilation gaps are left in the lower part of the roof and on the ridge for air circulation. When installing an uninsulated roof, the Roofer vapor-waterproofing membrane is installed as waterproofing in the same way, but with a roof slope of less than 30° with mandatory gluing using Roofer double-sided polypropylene tape. When installing an insulated roof, the Roofer vapor-waterproofing membrane as a vapor barrier is installed from the middle of the room with the marked side inward with a mandatory overlap of at least 150 mm. All overlaps and joints to walls and rafters MUST be glued. The overlaps are glued using Roofer adhesive polypropylene tape, joints to walls and rafters using Roofer K2 butyl rubber tape. When installing a mansard roof, where the difference between the external and internal temperatures reaches a maximum, the Roofer vapor-waterproofing membrane as a vapor barrier is mounted through a counter rail at a distance of 30-50 mm from the insulation, which additionally prevents the formation of moisture in the middle of the insulation. For vapor barrier walls, Roofer membranes must be fastened to the overlaps using polypropylene adhesive tape. The membrane is fixed using rails or profiles, fastening is carried out in a standard way as for other materials. When insulating the floor, the Roofer membrane is laid directly on the slab, or on the insulation with a mandatory overlap at the joints of at least 150-200mm. with the marked side facing up. All joints must be fastened with overlaps using Roofer adhesive polypropylene tape

Original TM ROOFER membranes are packed exclusively in branded packaging with the address of the manufacturer's facilities and technical specifications. The packed rolls must be glued on the ends with Roofer branded tape with the trademark applied to it. In the expanded form, all membranes have dotted markings on both sides at a distance of 150 mm. from the edge, the company logo and a printed batch number.