Insulating A Concrete Slab Roof

Cold roof systems are highly inadvisable as insulation from the inside will inevitably lead to the formation of condensation.

Insulating a concrete slab roof.

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. Quinn therm qrfr ffr insulation is a foil faced insulation board which helps further improve the thermal performance to help achieve the desired u value. Exact specifications vary but most concrete roofs are several inches thick. Due to the continuous stone wool base the vapour barrier remains intact even during small structural movements.

Martin holladay explains insulating a slab on grade in the energy smart details department. A concrete roof is exactly what it sounds like. Can you give me an r value. 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.

The concrete roof insulation waterproofing challenge commercial residential concrete roof slabs are not only expensive to build but they are also costly to maintain. As long ago as 1945 the national bureau of standards reported in its bms report 103 that the. Placing the 4 inch concrete slab was routine and after the concrete had cured framing the exterior walls could begin. Effective roof insulation has three or four insulation layers.

The lowest insulation layer forms a uniform base for the vapour barrier. There are a number of quinn therm roof insulation boards which will suit a warm deck flat roof construction built with a concrete deck each with different facings. Cold roof a very bad idea. Before giving a specific answer we should point out that it is normally uneconomical to use insulation under the whole slab.

Quad deck uses unique technology to create an energy efficient and quality insulating concrete floor and roof system. To produce a hot roof rigid insulation is fitted outside above the weatherproofing. Of course it doesn t have to be that way if the concrete slab is insulated properly and this can be done on new builds or on existing concrete roof slabs. Ideal for use in commercial and residential construction quad deck combines the strength security and reliability of reinforced concrete with the energy efficiency fast construction and comfort of insulating concrete forms.

A solid slab of concrete capping the top of your house. How much good can i get out of perlite or vermiculite concrete as an insulating material under a slab on ground for my house. This is then covered with a further weatherproofing layer. It didn t take long for the framers to build and raise the exterior walls.

The climate the type of foundation whether the slab includes hydronic tubing for radiant heat and the severity of the local termite problem. About the only out of the ordinary thing for the framers was temporarily raising the threshold of the front entry with two 2 by layers.