Paint or prime cut edges to prevent rust.
How to fix bitumen roof sheets.
The top of the sheet has a smooth grained surface whilst the underside of the sheet is identified by its dimpled rough surface finish.
Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges.
Take care to fix the bitumen corrugated sheets the correct way up.
Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run.
Step 1 cut the panels to the desired length.
To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5.
Many of these are uv resistant fire rated and allow light through.
You can find the most recent onduline fixing guide on our website where you can save money on buy onduline roofing sheets http bi.
This quick guide will help you get a better understanding on how to get the perfect installation on.
Available in a range of different materials sizes and colours.
Sheet roofing is normally selected based on the job you are trying to complete but other factors contribute like building type use and appearance.
Make sure you space these fasteners every three to four corrugations.
If yours do not.
Secure the edge of the sheet at the gutter end every second corrugation.
Lay the individual sheets across the roof joists or cross beams.
Seal the sides of the corrugated bitumen sheets with foam strips or spray foam.
Primary fixings should be in profile valleys where possible.
For corrugated sheets the fixings required will depend on the material used in the purlins.
The sheets also finish with the corrugation edge facing down to the surface of the roof.
Secure the sheets to the roof by using stainless steel fasteners.
Fix roofing sheets nail or drill each sheet into the purlins or decking beneath at every point at which the sheet overlaps and at the top and bottom of the slopes.
Corrugated bitumen sheet roof andrew b new member while removing debris from the corrugated bitumen sheet roof i stepped on one of the sheets near the fixing and it somehow cracked there is a tear now visible see the photo attached.
Trim any excess with shears.
Coroline onduline and corrap bt sheets are also available in a range of colours.
Wear hearing and eye protection.
Wondering how to go about installing your coroline roof.
Sorry for the old video.
Bitumen roofing sheets are lightweight but don t compromise on durability.
The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets.
Some panels have pre drilled holes.