Before installing NEXLER Bitumen Shingles 800 on the roof, remove the film from the underside. Shingles should be laid starting from the eaves, on the eave strip. A starter strip should be used to make sure that the notches on the modules face upwards. Where shingles are to be laid in an inverted pattern, it is recommended to remove the additional narrow strip of foil when fitting the first starter strip. Use adhesive and nails for a secure attachment to the substrate. The next layer of shingles should belaid on the starter strip shingles, rotated 180° (with the notches facing down). The first row should be offset by half the module width relative to the starter strip, with the second row laid in the same way, maintaining a half-module offset. For roofs with a slope angle between 25° and 80°, shingle tabs in a higher row should touch the highest point of the shingle notches in a lower row. For roofs with a more gentle slope angle, below 25°, the shingle tabs should overlap the highest point of the lower shingle tabs by approx. 4 cm. The shingles should be laid edge to edge, without leaving any gaps. For a secure attachment, use galvanised roofing nails spaced 1 to 2 cm apart above the shingle notches. Choose nail lengths appropriate to the sheathing thickness, ensuring they are driven perpendicular to the roof sheathing to at least three-quarters of its depth.Roofing nails should not be driven below the roofing surface or left protruding.
At the roof edges (eaves, valleys, ridge beams, wind braces, hail guards, and other protruding components), as well as on slopes steeper than 55°, shingle tabs should be bonded using a bituminous adhesive suitable for the purpose, such as NEXLER Adhesive for Bituminous Felt and Shingles, NEXLER Bitumen Roofing Sealant, or NEXLER Arbolex Aqua Stop roofing putty. Agents containing organic solvents are not recommended for bonding.
The adhesive should be applied in a layer approximately 1 mm thick. Do not use shingles from different production batches on the same roof slope. Shingles should be installed using sheets from 5 - 6 packs at a time to ensure a uniform colour appearance.

Before use, please read the application details in the product's Technical Data Sheet.

Documents for download

Declaration of Performance

European Technical Assessment

Instruction

Technical Data Sheet