Insulating Flat Concrete Roof From Inside

Now you might say why not put the insulation under the ceiling.

Insulating flat concrete roof from inside.

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. After all it s easier to get at. The insulation material is placed between the supporting joists leaving a gap of 50 60mm between the roof and insulation.

This will enable the airflow to circulate freely. Gropius and le corbusier in the 20s sought to capture the machine age by using industrial style roofs. The material that works best depends largely upon preference in a given situation. You can expect to pay about 55 100 sq ft.

Like other roofs insulating a flat one requires ample ventilation a vapor barrier and sealed bypasses. Why not put the insulation inside. The concrete deck can offer greater speed of roof construction which is an important consideration on many larger commercial projects. A vapour barrier is attached to the insulation material in order to prevent condensation and molding.

We recommend having at least 20 r value worth of material for optimal energy efficiency. Advantages by insulating the roof from the inside you can avoid damp problems. 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. While expensive the best insulation is polyiso rigid foam.

Flat roof systems consist of a supp. If insulation is being added to an older building then it is common practice for the ceiling itself to be taken down. Many millions of square meters of flat roof are not yet green this means wasting an enormous potential of living space. Careful detailing at the edge and parapet areas of a flat roof is vital for reliability and durability.

Let me just mention that the flat roof as a motif certainly predates 1933. The supports will rot if they are made of wood or rust if they are of reinforced concrete. The insulation will quickly become saturated with water and cease to be effective. 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.

It is top quality and the most cost effective product for your flat roof. Flat concrete roofs are generally not ventilated since the ceiling internally is generally a plaster and skim coat directly to the underside of the cold concrete. Flat roof hello there s a lot of good material in this post for comment.