Polytex® Pro should be applied in a shingle fashion with horizontal overlaps being at least 150 mm. Staple and overlap seams with Tyvek® tape. Polytex® Pro is applied to the structure using stainless steel staples after which the battens are placed over the staples. VASTR® Nail Sealing Tape should be applied under the batten to ensure water tightness of screw hole connection. Always apply Polytex® Pro legibly from the outside. When used in conjunction with Façade cladding, a wooden slat is installed over the staples on the batten. At the location of a corner, the membrane should be converted to the first following batten, where it will be fastened with staples and possibly a wooden slat. For optimal water resistance and durability, VASTR® Butyl tape should be applied under the batten.