Joining Flat Roof To Pitched Roof

Joining different flat roofs.

Joining flat roof to pitched roof.

We ll start with the knowledge that the main roof has an 8 12 pitch. This video will demonstrate how to integrate a cure it grp roof with a pitched roof. First we should establish the pitch of both roof planes. It has a slope of 2 3.

While that s the easiest route it s certainly not your only option. For slopes less than 9 5 we cannot install roof shingles. A flat roof isn t actually flat. Pitched roofs are usually much heavier than flat roofs so an easy replacement may not always be possible.

One is getting the two differently pitched planes to meet at the hip or valley rafter. After this roofing cement is applied around the complete area and then the missing tiles are replaced. The roof needs to be tied in by lifting up some of the original tiles on the existing roof and then allowing the flat roof to run slightly underneath. Most homeowners choose to convert a flat roof to a pitched one using a simple trussed roof with two angled planes.

Flashing and more roofing compound are used to weatherproof the joint. Additional valleys angles and gables can be built into converted roofs as well but adding these elements may affect your project. Armourvalley or other materials like epdm pvc or tpo covering. If you own a building with a flat roof the first thing your contractor will do is consult a structural engineer to make sure your structure can handle the conversion.

Flat roof connected to pitch roof. Joining these two roofs poses two main challenges. Lets have a quick look at how to join a roof without an upstand where practical joining onto roofing felt with epdm roofing felt is bitumen based and it can be difficult to get any sort of good bond onto bitumen with anything other than a like for like bitumen product. The other is to get the fascias to line up.