It’s important that the correct fasteners are used when installing PERMALITE® aluminium products, this will not only result in a strong fixing, but ensure the durability of the PERMALITE® for the long term.
Fasteners should be made from a material that’s compatible with aluminium, otherwise the fasteners may react and ultimately cause galvanic corrosion at the fixing point.
To make selecting the correct fasteners simple, Lysaght offers a wide range of stainless steel screws and washers to provide durable performance in all aspects of fixing roofing sheets, cladding and cladding.
The range includes crest fasteners featuring the unique ‘Positive Fix’ system, which provides high security against wind uplift and water penetration, while at the same time allowing movement of the roof sheeting and structure to accommodate thermal expansion and contraction.
And for wall fixing to steel girts, Lysaght is able to supply Valley Fasteners (RA014, RA114 and RA018) made from stainless steel, with an aluminium / rubber bonded washer.