Solid Insulation For A Flat Roof

Flat roof insulation thickness the chosen insulation laid on top of this should be able to take the weight of anything put above it on the roof without compression or protected from compression by further sheeting.

Solid insulation for a flat roof.

We recommend having at least 20 r value worth of material for optimal energy efficiency. Rockwool products are available with a bitumen or mineral coated fiberglass face to be used in a number of roofing solutions. Rigid foam panels are available in thickness. Insulating a flat roof with timber deck insulated between and below joist.

The material that works best depends largely upon preference in a given situation. Cold deck insulation rigid pir insulation boards such as quinn therm qr boards are generally the preferred roof insulation materials for flat roofs for a number of reasons. Insulation for flat roofing is used to make a structure more energy efficient and minimise heat loss. Like other roofs insulating a flat one requires ample ventilation a vapor barrier and sealed bypasses.

You can expect to pay about 55 100 sq ft. The typical u value of an existing uninsulated flat roof is 1 5w m2k. The correct method for a flat roof is under the current regulations to have a warm roof. Rockwool stone wool roof insulation combines the thermal performance dimensional stability impact resistance and acoustic control required to increase the performance of many flat roof assemblies.

You would only do this however if replacing the roof covering on top and you have the height above the roof to do this. Materials used to make insulation in these three types include mineral wool fiberglass cellulose fiber vermiculite styrofoam polystyrene and polyurethane. It is top quality and the most cost effective product for your flat roof. They are lightweight easy to fit and come in a range of thicknesses.

Rockwool stone wool roof insulation combines the thermal performance dimensional stability impact resistance and acoustic control required to increase the performance of many flat roof assemblies. Laying flat roof insulation as a rule any roof with a pitch below 10 is classified as a flat roof. While expensive the best insulation is polyiso rigid foam. In a nutshell you would sandwich 130mm of solid insulation between two decks allowing to place a vapour barrier on top of the first deck.

For a 1 inch board equivalent of 6 r value.