Insulation Between Roof And Ceiling

R 38 is the industry standard and the minimum thickness for r 38 is 12 inches.

Insulation between roof and ceiling.

For example cathedral ceilings built with 2x12 rafters have space for standard 10 inch batts r 30 and ventilation. Measure the depth of your current insulation. Spray foam either closed or open cell insulation or dense pack cellulose insulation. If your current insulation is only five inches deep you will need to add seven inches of insulation to achieve the 12 inch r 38 rating.

Insulate above a dropped ceiling or in an attic with loose fill fiberglass or cellulose or fiberglass batt insulation. Furthermore most ceiling and roof insulation have good sound insulation qualities. At thermostruct we supply a wide range of polyester and glasswool ceiling batts as well as roofing blanket and reflective insulation materials produced by top quality manufacturers. Insulation between ceiling rafters.

Install rigid insulation between the roof decking and the upper membrane. Roof insulation refers to the practice of installing insulation on the roof slope both above and below the rafters. This can be achieved through the use of truss joists scissor truss framing or sufficiently large rafters. These include autex bradford knauf and air cell to name a few.

Whether it s thermal insulation or acoustic insulation you are after we can help you with product choice and installation advice. Sprayed on polystyrene or rigid insulation is usually installed as part of a re roofing project. Measure the area needing insulation. The reason is because it is very difficult to properly ventilate a flat space because air does not generally move in a straight line.