Hybrid Flat Roof Insulation
Eps taper and polyiso hybrid systems.
Hybrid flat roof insulation. However this is a general guide and could change depending upon the building use location and humidity class. In each case the name refers to the position of the insulation in relation to the roof deck. 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. Warm flat roofs and cold flat roofs.
We have a wide range of roof insulation products including flat roof insulation tapered insulation and pitched roof loft insulation. A hybrid cold flat roof is one where at least 2 3rds of the insulation is above the roof deck or joists. Imagine a flat roof constructed on timber deck and joists. Flat roof design guide.
In this context the term hybrid flat roof refers to a timber flat roof construction that is insulated both between and over the joists. We also have insulation boards suitable for more specialist roof applications for example inverted roof insulation and balcony insulation. A warm flat roof is. Traditionally flat roof constructions fall in to two camps.
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. In the case of a flat roof insulation is usually in the form of either a rigid board above the deck or a fibrous quilt immediately above the ceiling depending on the type of roof construction. There are three recognised designs of flat roof construction. Rockwool products are available with a bitumen or mineral coated fiberglass face to be used in a number of roofing solutions.
This is then topped up with 120mm of glass wool installed. If the basic warm roof construction is followed before extra insulation is installed problems can arise. Warm cold and inverted. While hybrid roofing insulation can come in a variety of combinations the result is particularly noteworthy when eps and polyiso team up.
We would recommend a condensation risk analysis be carried out on every hybrid flat roof construction to determine the insulation. 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. 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. 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.