Epdm Warm Flat Roof Construction

This approach uses insulation with no air gap either immediately above or below the roof deck.

Epdm warm flat roof construction.

Consider geography budget and use for the roof to determine the best option. This option avoids the requirement to ventilate the roof. This is where the insulation is typically packed between the rafters. A vapour control layer must be used below the insulation.

A vapour barrier to prevent moisture. Warm deck roof construction repair and replacement with an epdm rubber roofing membrane most new flat roof extensions are constructed using the warm roof method. The insulation material is placed immediately above the ceiling between the rafters. If insulation is installed below the flat roof deck this is called a cold roof.

Epdm rubber warm roof being installed over old decking using a new vapour barrier and thermally broken fixings. Hot tar and gravel. Epdm rubber roofing has firmly established itself as one of the most popular options for flat roofing of all sizes. The benefits it provides and its cost effectiveness over a long term period have seen it become the flat roofing system of choice for many property owners.

To use epdm for a warm deck flat roof construction solid closed cell roof insulation such as kingspan or celotex should be placed on top of the roof deck rather than in between the rafters. It helps to avoid condensation in the roof structure by ensuring the deck is maintained at a suitable temperature. It consists of six basic elements. From there the flat roof system you choose will determine the materials you apply.

A waterproof layer which resists water. The 3 most common materials used for flat roof construction. There are several methods and materials for the design of the exterior surface of a warm or cold flat roof. Flat roof construction flat roof construction diagram warm roof.

For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow. A cold deck is constructed as follows. The guttering and gutter board has been remov. Thermal insulation which retains heat within the building rather than allowing it to escape through the roof.

A note to consider before construction. Less thermally efficient than a warm roof construction cold roof construction remains the most common form of construction for existing flat roofs. Warm deck flat roofs can be constructed on most modern construction material types such as concrete timber and timber based sheets. This type of roof construction has an insulation layer above the rafters and another layer immediately below its weather proof epdm membrane.