To provide an acceptable area of seal around the oversize holes drilled in the sheet material to allow for thermal expansion of the sheet refer section 2 1 3 4.
Roofing washers nz.
50mm galvanised roof fasteners box of 50 start price.
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Anzor stainless steel fasteners.
All metal washers are available painted to match the roofing and wall cladding screws.
Profiled washers match the rib shape and fit over the ribs of the roofing profile.
Oneshot fasteners cut an expansion hole in the sheet that ensures your polycarbonate sheet is installed correctly allowing for thermal expansion and contraction in all conditions.
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They are suitable for use on polycarbonate and fibreglass roofing.
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Zenith epdm washers are designed to be used with zenith roofing screws to provide a water tight seal.
Vortex self drilling roofing screw beige 70mm 306 screws roof hex head washer 75 00.
Roofing supplies online offers a choice in all the colours of the nz steel endura and maxx range.
Ridging standard with soft edge ridging is used at the apex of a roof or at the hip joints to weatherproof the gap that is created at the high point where two sheets meet at the ridge apex or hip end.
0800 42 52 62 info fortress kiwi webshop.
Msl fortress fasteners.
Rubber and plastic washers.
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For installation of roofs over 3m in height or for high wind zones please contact alsynite.
Profile roofing washers meets the load ratings for the respective profiles when installed as per the nzmrm code of practice.
They are used for two purposes.