This is then topped up with 120mm of glass wool installed.
Hybrid flat roof insulation.
Flat roof design guide.
We would recommend a condensation risk analysis be carried out on every hybrid flat roof construction to determine the insulation.
A hybrid cold flat roof is one where at least 2 3rds of the insulation is above the roof deck or joists.
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.
Eps taper and polyiso hybrid systems.
Imagine a flat roof constructed on timber deck and joists.
Warm cold and inverted.
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.
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.
While hybrid roofing insulation can come in a variety of combinations the result is particularly noteworthy when eps and polyiso team up.
However this is a general guide and could change depending upon the building use location and humidity class.
Rockwool products are available with a bitumen or mineral coated fiberglass face to be used in a number of roofing solutions.
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.
A warm flat roof is.
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.
However the construction may still be vulnerable to condensation for example in scotland cold flat roofs are not recommended.
Traditionally flat roof constructions fall in to two camps.
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.
If the basic warm roof construction is followed before extra insulation is installed problems can arise.
In this context the term hybrid flat roof refers to a timber flat roof construction that is insulated both between and over the joists.