Sloped Roof To Flat Roof Transition

A flat roof isn t actually flat.

Sloped roof to flat roof transition. 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. It has a slope of 2 3. These new roofs can be either low sloped less than 2 12 functional roofs or high pitched greater than 2 12 architectural roofs depending on the expectations of the building owner. There are two key details for the transition between steep and low slopes.

So at the ridge where the shingled slope meets with the flat roof this is the order of materials. A roof pitch transition is a line in the roof plane that changes pitch. The use of metal retrofit roofs allows the flat roofed buildings to undergo a transformation into a sloped roof building. The roof plane goes from one pitch to a lower pitch.

Flat roof slope the slope of a roof or pitch is determined by how many inches the roof rises over 1 foot or 12 inches. This means that the rise of the slope goes up or down 8 inches for every 12 inches. See the illustration below. We see this quite frequently in log home roofs with porches for example.

Armourvalley or other materials like epdm pvc or tpo covering. Pitch transitions are a common roof detail. On slope shingled roof at the transition point. This is a fairly common roof detail.

It appears to be flat but it needs a slope to allow the water to drain from the roof. For slopes less than 9 5 we cannot install roof shingles. Instead the roof must be done with a modified bituminous membrane e g. An example for a steep sloped roof is 8 12.

First layer of shingles an additional shingle put on at the edge or transition point. The distance that the lower roof membrane laps onto the steeper sloped roof and the need for isolation between incompatible materials.