Insulating Flat Roof In Florida

But the story doesn t end there.

Insulating flat roof in florida.

For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6. It is top quality and the most cost effective product for your flat roof. Framed wall insulation must meet or exceed r 13. Insulating a roof from inside is technically feasible.

In fact it may cause damage in the long term. Most insulation you buy will have a sq ft number for easy reference. Like other roofs insulating a flat one requires ample ventilation a vapor barrier and sealed bypasses. This method involves leaving a ventilation space above the insulation.

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. Today we ll go over insulation for your attic and why it s essential to your florida home. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation. 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.

There are different insulation requirements and recommendations for different parts of your home. Insulation in your walls floors and ceilings helps to keep your home cool in the summer and warm in the winter. You can expect to pay about 55 100 sq ft. For the material that covers a flat roof wind resistance is less critical and the material tends to have negligible impact from salt spray.

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. It s what s called the cold roof principle. Materials used to make insulation in these three types include mineral wool fiberglass cellulose fiber vermiculite styrofoam polystyrene and polyurethane.

Insulation requirements in florida residential requirements for insulation are divided by the location in the 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. Climate zone 1 consists of the following south florida counties.

When the insulation is installed properly there will be plenty of ventilation for a residential structure. All other florida counties are considered to be in climate zone 2 and require a minimum r 38. While expensive the best insulation is polyiso rigid foam.