Hybrid Flat Roof Insulation

Imagine a flat roof constructed on timber deck and joists.

Hybrid flat roof insulation.

However the construction may still be vulnerable to condensation for example in scotland cold flat roofs are not recommended. A warm flat roof is. Our final example of this block is a hybrid flat roof insulation solution is a highly cost effective solution where larger timbers 150mm have already been installed the solution starts off with our next gen sf19 superfoil insulation installed across the top of your joists with firings overs the top to provide the necessary drop. In this context the term hybrid flat roof refers to a timber flat roof construction that is insulated both between and over the joists.

While hybrid roofing insulation can come in a variety of combinations the result is particularly noteworthy when eps and polyiso team up. Rockwool products are available with a bitumen or mineral coated fiberglass face to be used in a number of roofing solutions. However this is a general guide and could change depending upon the building use location and humidity class. Hcontrol hybrid hybris boost r hybrid or boost r hybrid roof can be installed but please note in accordance with bs 5250 it is crucial to introduce 50mm cross ventilation together with a vcl.

A hybrid system comprising 120mm of iko enertherm alu insulation above the roof deck and vcl and 100mm of the same product below will provide a u value of around 0 11 w m k. If the basic warm roof construction is followed before extra insulation is installed problems can arise. 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. In each case the name refers to the position of the insulation in relation to the roof deck.

Warm flat roofs and cold flat roofs. We would recommend a condensation risk analysis be carried out on every hybrid flat roof construction to determine the insulation. Insulfoam s tapered eps insulation combined with polyiso flat board insulation creates an ideal hybrid roof insulation system that saves you time and money on the roof. Flat roof design guide.

A hybrid cold flat roof is one where at least 2 3rds of the insulation is above the roof deck or joists. Warm cold and inverted. Eps taper and polyiso hybrid systems. We have a wide range of roof insulation products including flat roof insulation tapered insulation and pitched roof loft insulation.

When issues like those above occur it s not surprising that people look at the space between the joists and wonder if they can use it for more insulation. We also have insulation boards suitable for more specialist roof applications for example inverted roof insulation and balcony insulation. There are three recognised designs of flat roof construction. By comparison a warm roof would require 180mm of iko enertherm alu insulation to achieve the same u value raising the overall roof height by 60mm.