Joining A Flat Roof To A Pitched Roof

This latest project was in early december in lambeth ontario for a residential home that had an existing sloped or shingled roof that needed to tie into a ne.

Joining a flat roof to a pitched roof.

A pitched roof is more expensive. Joining different flat roofs. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. Flat roofs also don t last as long.

I wondered what is the best way to do this. Joining these two roofs poses two main challenges. It is largely cosmetic in so far as the a framing is concerned in any case. After this roofing cement is applied around the complete area and then the missing tiles are replaced.

While that s the easiest route it s certainly not your only option. Joining roofs flat roof to sloped roof hi i am trying to join a flat sloped roof to an angled roof and connect the fascia and guttering. You then build this junction with ply layboards that extend up the roof far enough in order to sufficiently weather. When assessing the pitch of a flat roof always get an accurate level onto the roof and carefully study the degree of fall to build up a mental picture of potential snags before you get them this way plans can be made in advance of problems.

Flashing and more roofing compound are used to weatherproof the joint. Slip a new pitched roof membrane under the existing lift the existing gently and get up as far as you can. It is a significant renovation if you are converting from flat to pitched. I have used the join roofs tool but then how is it best to add the fascia and guttering to connect to what will be the new modified roof.

All you need is about 100mm overlap at the top and a bottom flap you can lift over the epdm. Most homeowners choose to convert a flat roof to a pitched one using a simple trussed roof with two angled planes. Alternative is a roll of wide dpc. 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.

The other is to get the fascias to line up. Additional valleys angles and gables can be built into converted roofs as well but adding these elements may affect your project. One is getting the two differently pitched planes to meet at the hip or valley rafter. First we should establish the pitch of both roof planes.

This is stiff enough to push and wiggle under the existing felt if yoy are carefully you will manage it most times. We ll start with the knowledge that the main roof has an 8 12 pitch. 12 to 18 inches wide.