Flat Roof Insulation Florida

State only fl florida 2014 florida building code energy conservation 1 r 20.

Flat roof insulation florida.

Foam control plus flat roof insulation. While expensive the best insulation is polyiso rigid foam. It is top quality and the most cost effective product for your flat roof. Insulation requirements in florida residential requirements for insulation are divided by the location in the home.

If building a new home you may consider installing insulation on the underside of the roof decking and sealing the attic space creating an unvented attic. Insulation in your walls floors and ceilings helps to keep your home cool in the summer and warm in the winter. Interior insulation r 7 8. This approach is permitted in the florida building code and requires certain conditions are met regarding insulation air permeability and the attic s air barrier.

Framed wall insulation must meet or exceed r 13. The most common type of flat roof material in the u s. With flat roof insulation a vapor barrier should sit between the joists and ceiling panels and the insulation on top. You can expect to pay about 55 100 sq ft.

Roof is 5 000 to 11 500 with most homeowners paying around 7 500 for the project. Minimum insulation r value requirements non residential above roof deck. State applicable energy ashrae zone minimum r value state local ms mississippi ashrae 90 1 2010 2 r 20 3 r 20 state. Flat roof insulation is also used with conventional bur and mechanically or adhesively attached single ply and modified bitumen membranes when field applied cover boards are used.

Flat roof insulation is unfaced polustyrene and is suitable for use with loosely laid single ply membranes. Sealing bypasses bypasses are anywhere that there is a break in the insulation. Is polyvinyl chloride pvc single ply membrane which costs between 350 750 a square 100 sq ft on average. For a 1 inch board equivalent of 6 r value.

We recommend having at least 20 r value worth of material for optimal energy efficiency. A flat ceiling will have the same area as the floor footprint. But the story doesn t end there. Today we ll go over insulation for your attic and why it s essential to your florida home.

There are different insulation requirements and recommendations for different parts of your home. The average range for a 1 500 sq ft.