Insulating Flat Roof In Florida

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.

Insulating flat roof in florida.

We recommend having at least 20 r value worth of material for optimal energy efficiency. It s what s called the cold roof principle. The material that works best depends largely upon preference in a given situation. Like other roofs insulating a flat one requires ample ventilation a vapor barrier and sealed bypasses.

All other florida counties are considered to be in climate zone 2 and require a minimum 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. You can expect to pay about 55 100 sq ft. Insulation requirements in florida residential requirements for insulation are divided by the location in the home.

It is top quality and the most cost effective product for your flat roof. There are different insulation requirements and recommendations for different parts of your home. For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6. Insulation in your walls floors and ceilings helps to keep your home cool in the summer and warm in the winter.

Materials used to make insulation in these three types include mineral wool fiberglass cellulose fiber vermiculite styrofoam polystyrene and polyurethane. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation. Climate zone 1 consists of the following south florida counties. In fact it may cause damage in the long term.

But the story doesn t end there. When the insulation is installed properly there will be plenty of ventilation for a residential structure. This is the most common way to insulate a flat roof. Most insulation you buy will have a sq ft number for easy reference.

The space is located beneath the roof sheathing and above the ceiling of the living space. Framed wall insulation must meet or exceed r 13. Insulating a roof from inside is technically feasible. 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 a 1 inch board equivalent of 6 r value. While expensive the best insulation is polyiso rigid foam. Can a flat roof be insulated from inside from the ceiling of the area below.