Flat Roof To Pitched Roof Abutment Detail

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Flat roof to pitched roof abutment detail.

Once installed the wall abutment frame should be flashed over to fully weather proof it. Warm roof to valley. Horizontal flashings should provide weathering to a minimum of 75mm above the intersection with the roof. Warm roof to ridge.

Details for pitched roofs and flat roofs verge detail eaves detail mansard roof valley detail etc. Detail drawings and specifications for submission to building regulations. Fix timber batten in line with rake of verge undercloak to provide fixing for cut vertical gable tiles. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span.

Ensure that verge undercloak extends a minimum 38to 50mm beyond face of vertical tiling. Free cad detail drawing download of a flat roof abutment to be used in your construction cad drawings. Flat roofs and pitched roofs exist side by side as equal partners. Extend underlay on main roof to overlap vertical underlay by a minimum 150mm.

Cut tiles neatly to form detail at junction with verge undercloak. 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. Warm roof upstand to abutment wall with cover flashing. Warm roof with peel stop to change in level.

A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal. Warm roof pitched roof junction. Definition of roofs slopes flat roof a flat roof is defined by having a roof pitch below 15 degrees or a fall of 1 in 40 and can comprise of different products pitched roof a pitched roof is defined by having a roof pitch above 15 degrees or above fall of 1 in 40. The rooflight should always be pitched away from the abutment detail to minimise the chance of water ingress.