How To Lay Bitumen Corrugated Roof

After clearing the roof from dirt and obstruction it is time to put the roofing felt on the roof.

How to lay bitumen corrugated roof.

Get help to lay the first sheet onto the roof. Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart. Btm corrubit installation video. Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.

Continue adding panels until the roof is covered. Be sure before you fasten the roofing itself however that you lay down closure strips underneath where the screws will go. Secure the edge of the sheet at the gutter end every second corrugation. Trim any excess with shears.

Sorry for the old video. Here i show you how easy it is to re roof a shed with onduline roofing. Use cap nails and hammer them attaching the nails on the felt and the concrete. You can find the most recent onduline fixing guide on our website where you can save money on buy onduline roofing sheets http bi.

You may need to cut panels to fit angles using a circular saw with a metal saw blade. The silicone will spread and adhere creating a seal. Reduce the fixing centre to the first purlin up. Overhang the sheets at the fascia by 5cm to form a drip edge.

Install the panel so that the short lip overlaps the large lip. Leave approximately 6 to 8 inches between nails. Then attach the drip end flashings 8 to 12 inches apart. Fitting sheets step 1.

Secure the sheets to the roof by using stainless steel fasteners. Place it at one bottom corner allowing an overhang of two inches on each edge. To install corrugated roofing start by cutting your panels to length with an angle grinder. Seal the sides of the corrugated bitumen sheets with foam strips or spray foam.

Screw the new panel in place as described. 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. The corrugation should run up the roof toward the ridge.