Cold Flat Roof Eaves Detail

Consider geography budget and use for the roof to determine the best option.

Cold flat roof eaves detail.

Details both in 2d and 3d to give a clear understanding. 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. The flat roof shown above shows warm deck roof construction.

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. If insulation is installed below the flat roof deck this is called a cold roof. The position of the insulation dictates which type it is. Cold flat roofs warm flat roofs inverted flat roofs green flat roofs solar flat roofs.

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. From there the flat roof system you choose will determine the materials you apply. In terms of rules on ventilation bs 5250. Install the ice and water shield membrane so that it laps securely over and bonds to the surface of the drip edge.

Please fill in your details below to access our full list of standard details for sika sarnafils range of systems. Similar to the pitched roof a flat roof can be insulated as a cold or a warm deck. This air is vented at either end of the roof to allow a continuous air flow. In this type of construction the insulation is placed below the waterproof covering and on top of the roof deck and vapour barrier.

Hopefully this video will help explain the difference between cold flat roof construction and warm flat roof construction this videos show detailed drawings. The rolls of felt are quite heavy and to avoid damage must be handled with care. Flat roof details and information relating to insulating a flat roof. The best time to lay a felt roof using cold applied adhesive is when the weather is warm but this means that working on a flat roof can be exhausting work with the sun s heat and the heat reflected from the felt already laid.

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.