How To Lay Bitumen Corrugated Roof

Seal the sides of the corrugated bitumen sheets with foam strips or spray foam.

How to lay bitumen corrugated roof.

Position and fix the verge barge board. Install the panel so that the short lip overlaps the large lip. Metal roofing is also available in the form of shingles. The silicone will spread and adhere creating a seal.

Be sure before you fasten the roofing itself however that you lay down closure strips underneath where the screws will go. You may need to cut panels to fit angles using a circular saw with a metal saw blade. Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart. Then attach the drip end flashings 8 to 12 inches apart.

After clearing the roof from dirt and obstruction it is time to put the roofing felt on the roof. Sorry for the old video. Overhang the sheets at the fascia by 5cm to form a drip edge. When i built my garden shed in 1987 i used onduline corrugated roofing following the.

Place it at one bottom corner allowing an overhang of two inches on each edge. Screw the new panel in place as described. Here i show you how easy it is to re roof a shed with onduline roofing. Secure the sheets to the roof by using stainless steel fasteners.

Use cap nails and hammer them attaching the nails on the felt and the concrete. Secure the edge of the sheet at the gutter end every second corrugation. Make sure you space these fasteners every three to four corrugations. Trim any excess with shears.

Fitting sheets step 1. Btm corrubit installation video. The corrugation should run up the roof toward the ridge. Reduce the fixing centre to the first purlin up.

Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses. Leave approximately 6 to 8 inches between nails. Ensure the sheets are positioned square to the line of the eaves and verge first nailing the sheet edges. Get help to lay the first sheet onto the roof.