Flat Roof Joining Pitched Roof Detail

Joining different flat roofs.

Flat roof joining pitched roof detail.

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. Part 1 a guide to roof construction covers an overview of flat and pitched roofs. The result of joining two or more gabled roof sections together forming a t or l shape for the simplest forms or any number of more complex shapes. A simple roof design shaped like an inverted v.

Flat roofs also don t last as long. A pitched roof is a roof that slopes downwards typically in two parts at an angle from a central ridge but sometimes in one part from one edge to another. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. We also replaced the entire pitched roof at the same time.

It is a significant renovation if you are converting from flat to pitched. The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness. Introduction to green roof details a green or living roof is a flat or low pitched roof with a layer of planting over the waterproofing. Gable ridged dual pitched peaked saddle pack saddle saddleback span roof.

Depending on the climate your flat roof will only last between 15 and 30 years if well maintained. To get the most out of it is helpful to also read parts 1 and 2. Part 3 of the four part guide to roof construction covers pitched roof detail. We have just replaced a flat roof which wasn t possible to change to a pitched roof because of the room above.

A pitched roof is more expensive. Pitched is better and lasts longer. They had the flat roof done in such a way that they had a barge to go up before they turned it onto the existing roof so when the tiles go back there is a drop from them to the flat roof less would do but water on a windy day is better off the further away it can be from a pitched roof. The pitched roof was the original and lasted 100 years the flat roof had lasted 20 before it needed re doing.

Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. A very important detail is where the flat roof is connecting the pitch roof. The starter strip and first row of shingles must be applied 25 cm from the bottom of the slope roof or main roof above the slope transition.