The concrete deck can offer greater speed of roof construction which is an important consideration on many larger commercial projects.
Insulating flat concrete roof from inside.
This will enable the airflow to circulate freely.
To insulate a flat roof with a concrete deck we recommend a warm deck construction method where the vapour control layer is sandwiched between the concrete deck and a layer of rigid pir insulation boards.
The insulation will quickly become saturated with water and cease to be effective.
A vapour barrier is attached to the insulation material in order to prevent condensation and molding.
Flat roof systems consist of a supp.
Advantages by insulating the roof from the inside you can avoid damp problems.
The insulation material is placed between the supporting joists leaving a gap of 50 60mm between the roof and insulation.
It is top quality and the most cost effective product for your flat roof.
When you insulate a flat roof it is important that moisture or air are kept well out all around.
Careful detailing at the edge and parapet areas of a flat roof is vital for reliability and durability.
Keep in mind however that you will lose some space in the room by insulating the roof on the inside.
Materials used to make insulation in these three types include mineral wool fiberglass cellulose fiber vermiculite styrofoam polystyrene and polyurethane.
We recommend having at least 20 r value worth of material for optimal energy efficiency.
Creating a void between the old ceiling and new is better but ideally you need to eventually consider insulating the top of the concrete roof with solid insulation and a better covering grp or epdm.
Let me just mention that the flat roof as a motif certainly predates 1933.
Why not put the insulation inside.
While expensive the best insulation is polyiso rigid foam.
In fact insulation from the inside will inevitably lead to the formation of condensation caused by the humidity present inside the building.
You can expect to pay about 55 100 sq ft.
Flat roof hello there s a lot of good material in this post for comment.
Like other roofs insulating a flat one requires ample ventilation a vapor barrier and sealed bypasses.
For a 1 inch board equivalent of 6 r value.
The material that works best depends largely upon preference in a given situation.
After all it s easier to get at.
Gropius and le corbusier in the 20s sought to capture the machine age by using industrial style roofs.
Now you might say why not put the insulation under the ceiling.
Many millions of square meters of flat roof are not yet green this means wasting an enormous potential of living space.