The washer under the screw head should seal to the surface of the panel without bulging or shifting.
Installing bitumen corrugated roofing.
Overhang the sheets at the fascia by 5cm to form a drip edge.
Corrugated roofing is a great way to top a garden shed shop or patio.
Its quick easy and you can do it.
Btm corrubit installation video.
If you ve got a pergola attached to your house then you might want to give yourself some extra shelter and protection from the weather simply by installing.
Position and fix the verge barge board.
How to install corrugated bitumen sheets bitumen sheets are akin to fiberboard in that they are made from fibres of cardboard sandwiched together.
To install corrugated roofing start by cutting your panels to length with an angle grinder.
Place the first screw about 7 inches from the bottom and each subsequent screw about 18 to 24 inches apart along the vertical run.
Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart.
Ensure the sheets are positioned square to the line of the eaves and verge first nailing the sheet edges.
Secure the screws but do not overtighten.
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The sheets work well roof angles that range from 7 to 85 degrees making them a versatile roofing material.
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Install the roofing screws vertically along each rib in the panel.
Fitting sheets step 1.
Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.