Flat Roof Insulation Details

A common design problem.

Flat roof insulation details.

Gaco is a best in class provider of silicone roof coating systems waterproofing and insulation solutions for commercial and residential buildings. Flat roof u value 0 18 w m2k 2 warm deck flat roof the type of insulation for this is. Depending on the type of roof you are considering here s some technical details you may find useful. The typical u value of an existing uninsulated flat roof is 1 5w m2k.

Our insulation solutions for flat roof applications provide both excellent fire and acoustic performance in addition to high levels of thermal performance. Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board. Loading and impact resistance is also required with compressive strength being an important consideration when selecting flat roof insulation solutions. Waterproof membrane to prevent water penetrating the structure and interior of the building roof deck providing the base for the waterproof membrane and in some cases the insulation thermal insulation load bearing or primary structure usually.

In creating the cold flat roof air is allowed to circulate freely between the joists and there is no insulation. Rockwool products are available with a bitumen or mineral coated fiberglass face to be used in a number of roofing solutions. From there the flat roof system you choose will determine the materials you apply. Warm roof built up roof a warm flat roof or a built up roof bur is one where all the insulation is above the joists deck making them part of.

It should be of the maximum available thickness. Rockwool stone wool roof insulation combines the thermal performance dimensional stability impact resistance and acoustic control required to increase the performance of many flat roof assemblies.