How To Lay Bitumen Corrugated Roof

Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.

How to lay bitumen corrugated roof.

Make sure you space these fasteners every three to four corrugations. Trim any excess with shears. Metal roofing is also available in the form of shingles. To install corrugated roofing start by cutting your panels to length with an angle grinder.

Continue adding panels until the roof is covered. Seal the sides of the corrugated bitumen sheets with foam strips or spray foam. 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.

The corrugation should run up the roof toward the ridge. Reduce the fixing centre to the first purlin up. You can find the most recent onduline fixing guide on our website where you can save money on buy onduline roofing sheets http bi. Secure the edge of the sheet at the gutter end every second corrugation.

Leave approximately 6 to 8 inches between nails. Install the panel so that the short lip overlaps the large lip. The silicone will spread and adhere creating a seal. Overhang the sheets at the fascia by 5cm to form a drip edge.

Sorry for the old video. Use cap nails and hammer them attaching the nails on the felt and the concrete. After clearing the roof from dirt and obstruction it is time to put the roofing felt on the roof. Place it at one bottom corner allowing an overhang of two inches on each edge.

When i built my garden shed in 1987 i used onduline corrugated roofing following the. Ensure the sheets are positioned square to the line of the eaves and verge first nailing the sheet edges. Btm corrubit installation video. Get help to lay the first sheet onto the roof.

Screw the new panel in place as described. Secure the sheets to the roof by using stainless steel fasteners. Position and fix the verge barge board. Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart.