Cold Deck Flat Roof Scotland

Cold deck roof a cold deck roof is where the insulation is placed between the joists rafters or in between the ceiling joists in the case of a.

Cold deck flat roof scotland.

This is used for refurbishment e g. Although not recommended today and actually banned in scotland until recently cold flat roofs were fairly common. Cold roofs and warm roofs. The epdm rubber roof membrane is then installed using the contact adhesive onto the deck.

They should be avoided therefore because interstitial condensation is likely and its effect on the structure and. 2002 provides guidance on the principal forms of construction. In general the installation of a cold roof is not recommended for the construction of new properties. This video shows the key features of a flat roof cold deck construction and how to draw the details to a scale of 1 10.

In this case ventilation is required and the roof can still become wet with condensation which may cause materials to decay. The insulation material is placed immediately above the ceiling between the rafters. A cold flat roof is one where the insulation is between or between and below the roof joists. There is evidence that suggests that condensation in cold deck flat roofs is a problem.

Which ventilation solutions are available. The full deck was re boarded and an icopal monar plan single ply membrane system was fully installed as seen in the before and after photos. The 18mm roof grade deck is then fixed on top of the rafters leaving suitable air flow between the insulation and the deck. A cold deck is constructed as follows.

For the control of condensation in roofs including cold deck roofs bs 5250. The insulation is below the deck but above the plasterboard. We have worked on may project for bizspace over the years and this particular one saw a flat roof stipped back to the metal deck on an office block in livingston. For cold flat roofs the vapour layer needs to be positioned underneath the insulation layer on top of the room below to create an effective barrier.

Cold roofs have the waterproof layer placed directly onto the roof deck and the insulation inside the roof just above the ceiling. Cold roofs involve the thermal installation being installed between the joists and below the structural deck. There are two types of flat roof. No ventilation is required for these types of roofs.

Refurbishing an existing timber joisted flat roof which has no insulation.