Insulating Attics in Hot Climates: What You Need to Know

When it comes to insulating attics in hot climates like Florida, spray foam is the ideal choice. With an impressive R-value of six to seven per inch, closed-cell spray foam is the most effective insulation for this type of climate. Other suitable attic insulation materials include blown fiberglass, blown cellulose, and fiberglass layer. Aerosol foam roof insulation is also a popular option for roof insulation in Florida and across the country.

If your attic floor is unfinished, Owens Corning offers a range of fiberglass insulation products that are suitable for roof insulation in Florida homes. This flexible material can be used for roofs, floors, and walls. To measure the thickness of the attic insulation, use a ruler and multiply the number of inches by the R-value of that particular insulation to get an insulation rating. The Florida Building Code allows for this approach, but certain conditions must be met regarding the air permeability of the insulation and the attic air barrier. Before installation, make sure that your roof or walls can withstand any additional weight from the extra insulation.

The resistance or R-value refers to the insulation performance when measuring the resistance to heat flowing through the insulation over time.Rigid insulating plates are a versatile and effective type of roof insulation that is commonly used in Florida homes. Investing in high-quality roof insulation will create a more comfortable and energy efficient living space in your Florida home. This usually consists of a reflective material such as aluminum foil installed under the roof cover or inside the attic. In most areas of Florida, it is rarely cost-effective to add insulation to existing home walls. Even though Florida is known for its warm climate, adequate attic insulation can help maintain a comfortable temperature in your home year-round, keeping it cooler in summer and warmer in winter. The overall R value of a wall or roof will be somewhat different from the R value of the insulation itself since part of the heat flows around the insulation through uprights and beams of wooden or steel frame buildings (thermal bridge).

Victor Mosbarger
Victor Mosbarger

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