Cold Flat Roof Eaves Detail

Hopefully this video will help explain the difference between cold flat roof construction and warm flat roof construction this videos show detailed drawings.

Cold flat roof eaves detail.

Details both in 2d and 3d to give a clear understanding. Points to the installation of ice and water shield along the lower roof eaves protecting against ice dam leaks that are common on un vented roofs in cold weather or snow climates. This air is vented at either end of the roof to allow a continuous air flow. The flat roof shown above shows warm deck roof construction.

For this content to be displayed you need to accept all cookies in the cookie settings and confirm your selection or by clicking the. The fall of the roof is achieved by using firring pieces with a fall of 1 in 40. Install the ice and water shield membrane so that it laps securely over and bonds to the surface of the drip edge. In terms of rules on ventilation bs 5250.

The position of the insulation dictates which type it is. A note to consider before construction. The rolls of felt are quite heavy and to avoid damage must be handled with care. Cold flat roofs warm flat roofs inverted flat roofs green flat roofs solar flat roofs.

Flat roof details and information relating to insulating a flat roof. 2011 control of condensation in buildings is the document to view. Similar to the pitched roof a flat roof can be insulated as a cold or a warm deck. Put simply a warm flat roof has insulation of some kind packed into every available void and a cold flat roof allows air to circulate between the joists.

From there the flat roof system you choose will determine the materials you apply. Consider geography budget and use for the roof to determine the best option. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. In this type of construction the insulation is placed below the waterproof covering and on top of the roof deck and vapour barrier.

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