You can even place it under the foundation slab.
Insulation for felt roofs.
Bituminous felt is a form of waterproof sheeting that is used to cover flat roofs or as an underlay beneath slate or tile roofing.
This latter detail reduce the conduction losses and also allowed us to assure that there was no air leakage into the roof cavity this was a cathedral ceiling roof.
Cold flat roofs are typically avoided as you d need to install ventilation which can prove problematic for many reasons relating to space labour costs etc.
Follow the links below to learn about our roof insulation boards for each application or alternatively if you know the product you want then enter it in the search box below.
Rigid insulation is one of the best tools to reduce your energy costs.
The roofing felt that is commonly used a choice for roofing membranes is not permeable to water it is completely permeable.
A flat roof where the insulation sits below the waterproof membrane and above the structural deck is a warm roof deck.
Rigid foam insulation also known as insulating boards provide high r values.
Install it anywhere from the roof to the foundation.
Owens corning ecotouch insulation is soft to the touch easy to cut and install.
The most insulated roof structure i ve built combined insulation of the space between rafters with a layer of high r foil faced foam board on the underside of the rafters.
Exceptional dimensional stability and rated for extreme hail rockwool stone wool insulation roof boards have meet both the fm severe hail and the ul 2218a standard for impact resistance.
Therefore it has no capacity to allow moisture to leave the roof.
Installing tapered insulation also negates the requirement for a structural roof fall helping to reduce the overall cost of the roof.
In addition ecotouch insulation delivers comfort helps homes stay cooler in the summer and warmer in the winter.
Warm flat roofs do not need to be ventilated as the insulation is.
On the other hand the breathable roofing membrane which is often selectively permeable are unable to completely ward off the effects of dampness in.
Roofing felt is comprised of a base made from natural materials such as wood cellulose or synthetic ones such as fiberglass or polyester and then coated or saturated with a protective coating such as bitumen asphalt which repels water but still allows the product to breathe.
They keep your home at a comfortable temperature without the need to crank your heat.
The substance itself is made from bitumen which comes from the distillation of crude oil that has been either mixed with sand or crushed limestone.
Not only do we withstand hail damage but our roof boards maintain their bond to the roof membrane lowering the likelihood of a catastrophic roof failure.
