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.

For this content to be displayed you need to accept all cookies in the cookie settings and confirm your selection or by clicking the. Cold flat roofs warm flat roofs inverted flat roofs green flat roofs solar flat roofs. In this type of construction the insulation is placed below the waterproof covering and on top of the roof deck and vapour barrier. Flat roof details and information relating to insulating a flat roof.

Consider geography budget and use for the roof to determine the best option. Install the ice and water shield membrane so that it laps securely over and bonds to the surface of the drip edge. 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. 2011 control of condensation in buildings is the document to view.

The position of the insulation dictates which type it is. From there the flat roof system you choose will determine the materials you apply. The flat roof shown above shows warm deck roof construction. The rolls of felt are quite heavy and to avoid damage must be handled with care.

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. Details both in 2d and 3d to give a clear understanding. 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. Please fill in your details below to access our full list of standard details for sika sarnafils range of systems.

This air is vented at either end of the roof to allow a continuous air flow. If insulation is installed below the flat roof deck this is called a cold roof. A note to consider before construction. In terms of rules on ventilation bs 5250.

Similar to the pitched roof a flat roof can be insulated as a cold or a warm deck.