Standard panels supplied are:
26mm rib x 285 mm cover
38mm rib x 260 mm cover
Striproll NailStrip is available in Colorbond® (22 standard colours), Colorbond MATT® (6 standard colours), Zincalume® in 0.55 BMT material thickness.
Steel grade is G300 soft feed.
Care must be taken when fitting panels with flat tray pans to avoid causing dents and creases to these un-stiffened and delicate areas.
The Minimum Pitch is 7.5 degrees for roofing applications. Maximum unsupported overhang is 60mm for roofs and 100mm for walls. Do not allow traffic on completed roof. If required provide cushioned walk boards.
Drip edges should be formed at gutters to prevent capillary caused leakages.
Panels should be fixed to:
15mm CD grade plywood substrate on max support spacing for plywood substrate at 540mm centers or 17mm CD grade plywood substrate on max support spacing for plywood substrate at 600mm centers. All Plywood joins and edges must be flush and true. Uneven substrate may cause increased unwanted aesthetic imperfections to be visible such as an oil canning effect.
A Breathable vapor barrier such as CSR “Proctor Wrap RW” for walls or “ProctorWrap HT-R for roofing” or Fletchers “Sisalation Vapawrap Metal Roof” should be fitted beneath Nailstrip sheeting and laid over plywood (or steel battens) prior to fixing.
The sheet shall be fastened every 300mm through the Underlap slots with two 8g-10x25 countersunk head screws. It is important to select a flat headed screw that will not cause dents to the sheet when fitted. Remove strippable film prior to fitting panels.
If a timber substrate is undesirable, Striproll NailStrip may be fixed to suitably spaced 0.55 BMT x 40mm high steel battens with fixed clips only. Battens spaced at 300mm centers maximum. It is always preferable to fix to plywood to avoid denting of the pans and to reduce risk of thermal noise. Clips are 304 stainless and must be isolated from coated steel battens.
IMPORTANT: Do not allow any foot traffic on the roof if fitting to Steel battens to avoid denting and damaging sheeting. If required provide cushioned walk boards.
Thermal expansion of the sheeting is 2.9mm on average per 5 meters of sheet length for 50 degrees Celsius temperature change. No warranties against thermal expansion noise are provided. Fixing to steel battens may increase the amount of thermal noise generated from expansion and contraction. Using a quality vapor permeable water proof barrier may reduce noise from thermal expansion and contraction is recommended.
Sheeting start fasteners and male rib should be flashed over after securing through underlap slots.
Some oil canning effect may be evident in this product and may be caused by a number of reasons. For example, oil canning can be due to un-trueness in the flatness of the buildings substrate, turning up or down the sheet ends, handling onsite, inherent (expected) shape in the feed coil; this is expected and common in all flat tray sheet metal products is not a product fault. No warranties are offered against the presence or occurrence of oil canning.
Coverage: +/- 4mm Sheet Length: +/- 7mm Maximum sheet length: 6.000 m Minimum sheet length 0.900 m
Remove all scrap and swarf from completed installation to prevent subsequent Staining from corrosion.
All due care has been taken preparing this information Striproll do not take responsibility for errors or omission. This document is subject to review and periodic updating as information becomes available. It is the responsibility of the roof drainage designer to decide if use of this document is suitable for the assessment of each individual project and situation. This document is intended as an aid to trade professionals specifying and installing Striproll products and not to be a substitute for professional judgement. Except to the extent to which liability may not lawfully be excluded or limited, Striproll disclaims all liability (including liability for negligence) for all loss and damage resulting from the use of information in this publication.