Bitumen corrugated sheets bituminous roofing systems provide durability and are ideal for sheds and other outdoor structures.
How to fit bitumen corrugated sheet.
Step 1 cut the panels to the desired length.
Secure the sheets to the roof by using stainless steel fasteners.
Overhang the sheets at the fascia by 5cm to form a drip edge.
All the while corrugated roofing sheets are flexible.
Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run.
Many also use corrugated sheets as a low cost durable alternative to upvc cladding.
When laying sheets if they are corrugated allow a minimum of one corrugation and stagger the sheets using half a sheet to start the second course.
If yours do not.
Bitumen shed roofing sheets are typically sized 2m x 950mm.
Reduce the fixing centre to the first purlin up.
Seal the sides of the corrugated bitumen sheets with foam strips or spray foam.
In this guide we will be focusing on bitumen and pvc corrugated roofing sheets.
Angle grinder 1 x research source the fastest option.
Fitting sheets step 1.
The first row of sheets should extend out over the bottom purlin to allow rainwater drainage.
Ensure the sheets are positioned square to the line of the eaves and verge first nailing the sheet edges.
These play the same role as other roofing sheets but have a corrugated form factor to provide added rigidity and strength.
Most panels come up to 32 feet 9 8 m in length.
Position and fix the verge barge board.
Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges.
Some panels have pre drilled holes.
Here i show you how easy it is to re roof a shed with onduline roofing.
Use lapping tape across side and end laps.
Secure the edge of the sheet at the gutter end every second corrugation.
Btm corrubit installation video.
Make sure you space these fasteners every three to four corrugations.
When i built my garden shed in 1987 i used onduline corrugated roofing following the.