Flat Roof Meets Pitched Roof Detail

Horizontal flashings should provide weathering to a minimum of 75mm above the intersection with the roof.

Flat roof meets pitched roof detail. A raised structure running part or all of the way along the ridge of a double pitched roof with its own roof running parallel with the main roof butterfly roof v roof 7 london roof 8. 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. Pitched roof houses are 10 15 more compact compare to that of flat roofs. Where a flat or pitched roof over an enclosed area abuts a wall or a balcony abuts a wall cavity trays should be linked to the flashing to prevent water penetrating into an enclosed area.

Inspect it and help you maintain it. While flat roofing is not the same in price or in longevity as a pitched roof you may have one and it will need inspection and repairs over time. Where a pitched roof abuts the wall at an angle. The following images provide examples of pitched roof details.

Flat roof construction for residential. The building roofing system is responsible for around 25 35 loss of energy within a building. A very important detail is where the flat roof is connecting the pitch roof. Since re felting there s a new gulley where the flat roof abuts the sloping tiled roof previously the tiles on the pitched roof covered the join and water from the pitched roof ran on to the flat roof and safely into guttering now rainwater is running through this gulley and then via a newly created notch in the side edge of the flat roof.

At present the old felt is fixed to the fascia boards of the main house and a gutter fixed over it concerned though that gutter brackets will puncture the new felt here. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. However i m unsure how the detail where the flat roof meets the pitch of the tiled main house roof should work. To get the most out of it is helpful to also read parts 1 and 2.

Warm roof and cold roof construction is also seen in flat roofs discussed later in our flat roof detail article. The pitched roof provides higher thermal insulation by simply limiting the size of the surface exposed to the exterior. A roof with a monitor. Part 1 a guide to roof construction covers an overview of flat and pitched roofs.

A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. Part 3 of the four part guide to roof construction covers pitched roof detail. Roof eaves detail masonry cavity wall ventilated cold roof insulation between and over ceiling joists.