Insulating Flat Roof In Florida

The material that works best depends largely upon preference in a given situation.

Insulating flat roof in florida.

Materials used to make insulation in these three types include mineral wool fiberglass cellulose fiber vermiculite styrofoam polystyrene and polyurethane. While expensive the best insulation is polyiso rigid foam. There are different insulation requirements and recommendations for different parts of your home. Framed wall insulation must meet or exceed r 13.

Insulation in your walls floors and ceilings helps to keep your home cool in the summer and warm in the winter. Insulating a roof from inside is technically feasible. Today we ll go over insulation for your attic and why it s essential to your florida home. This method involves leaving a ventilation space above the insulation.

This system was often used in the past but is not recommended nowadays. Like other roofs insulating a flat one requires ample ventilation a vapor barrier and sealed bypasses. You can expect to pay about 55 100 sq ft. For a 1 inch board equivalent of 6 r value.

It s what s called the cold roof principle. When the insulation is installed properly there will be plenty of ventilation for a residential structure. Insulation requirements in florida residential requirements for insulation are divided by the location in the home. 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.

Can a flat roof be insulated from inside from the ceiling of the area below. This is the most common way to insulate a flat roof. But the story doesn t end there. The space is located beneath the roof sheathing and above the ceiling of the living space.

Most insulation you buy will have a sq ft number for easy reference. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation. For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6. In fact it may cause damage in the long term.

Climate zone 1 consists of the following south florida counties. It is top quality and the most cost effective product for your flat roof. 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.