Flat Roof Meets Pitched Roof Detail

This collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs right in the real world.

Flat roof meets pitched roof detail.

Armourfix and armourvalley membranes must be installed and extended 60 90 cm up the main roof underneath the shingles in order to assure a waterproof connection. 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. A v shaped roof resembling an open book. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings.

A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal. A flat roof usually consists of the following. Horizontal flashings should provide weathering to a minimum of 75mm above the intersection with the roof. Click the image for low res preview.

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. A very important detail is where the flat roof is connecting the pitch roof. Flat roof construction for residential. 2 50 vat add to basket includes dwg dxf and jpeg.

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. Click the image for low res preview. A selection of roof detail drawings including flat roof details pitched roof details mansard roof detail parapet verge ridge and eaves details. 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.

Part 3 of the four part guide to roof construction covers pitched roof detail. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. According to improve net s online roofing calculator a flat roof is significantly cheaper than a pitched roof. Waterproof membrane to prevent water penetrating the structure and interior of the.

Size up the job. To get the most out of it is helpful to also read parts 1 and 2. Part 1 a guide to roof construction covers an overview of flat and pitched roofs.