Which way does onduline sheets go?
Start fixing sheets at the opposite end of the roof from the prevailing winds. Cut a sheet in half vertically and use to lay sheet courses in a broken bond pattern. Only use Onduline PP or Safetop nails on timber; check you have correct side and end sheet laps.
How do you put up roofing sheets?
Tile sheets have to be laid from right to left sequence, starting on the right-hand side of the roof laying on the next sheet to the left, lapping over the profile with the small gully detail on the last lap of the left of the sheet. You should always overlap the sheets by at least one corrugation.
What is the best way to cut bitumen roof sheets?
When cutting along corrugated bitumen sheets you can either use a Stanley knife or a course bladed saw. Alternatively, cutting across the panels will require either a course bladed saw or a circular power saw.
How do you install Coroline on a roof?
If cutting is necessary, cut Coroline sheets to length using a hand saw with a lubricatingspray on the blade. Secure the sheet in place and fix to the verge using Coroline fixings at 100mm centres. Continue to install the sheet on the roof fixing through the crown of the corrugation.
How big is a Coroline bitumen roof sheet?
The Bitumen sheets are 2000 mm x 950 mm which cover an area of 855 mm. The sheet thickness are 2.66 mm and the weight of each sheet is 5.6 Kg. Below are some of the benefits and qualities of this complete roofing system.
What happens if you bend the Coroline on a roof?
Avoid bending the Coroline when you’re installing your roof; bends in the material can cause the roof to leak, and it won’t last as long as it should. To avoid bending the Coroline ridges, ensure you get the right fixings for the roof (we recommend the official Coroline fixings) and don’t hammer your nails in too far.
Where do you put a Coroline fix on a sheet?
The sheets have holes at the top and bottom in which to apply a Coroline fixing. You will also need to use a fixing in the middle of each sheet for every other corrugation. The ridge is quite flexible and easy install by lining up the holes in the sheets. You can nail the last sheet over the barge board to make the dry verge watertight.