Insulating Flat Roof In Florida

There are different insulation requirements and recommendations for different parts of your home.

Insulating flat roof in florida.

It is top quality and the most cost effective product for your flat roof. The main concern from florida building code is that any structures or vents that may reside on the flat roof must be properly fastened and sealed. Like other roofs insulating a flat one requires ample ventilation a vapor barrier and sealed bypasses. We recommend having at least 20 r value worth of material for optimal energy efficiency.

Framed wall insulation must meet or exceed r 13. Let s say you measured your attic and you realize your attic has about 9 inches r 30 of insulation and your attic is about 40 sq feet you d need at least 3 inches of extra insulation that covers 40 sq ft to get an r value of r 38. For the material that covers a flat roof wind resistance is less critical and the material tends to have negligible impact from salt spray. When the insulation is installed properly there will be plenty of ventilation for a residential structure.

For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation. Materials used to make insulation in these three types include mineral wool fiberglass cellulose fiber vermiculite styrofoam polystyrene and polyurethane. This is the most common way to insulate a flat roof.

You can expect to pay about 55 100 sq ft. While expensive the best insulation is polyiso rigid foam. Insulation requirements in florida residential requirements for insulation are divided by the location in the home. But the story doesn t end there.

In fact it may cause damage in the long term. Most insulation you buy will have a sq ft number for easy reference. It s what s called the cold roof principle. For a 1 inch board equivalent of 6 r value.

The space is located beneath the roof sheathing and above the ceiling of the living space. All other florida counties are considered to be in climate zone 2 and require a minimum r 38. Today we ll go over insulation for your attic and why it s essential to your florida home. This system was often used in the past but is not recommended nowadays.

Can a flat roof be insulated from inside from the ceiling of the area below. Insulation in your walls floors and ceilings helps to keep your home cool in the summer and warm in the winter. Climate zone 1 consists of the following south florida counties.