Cool South Florida Attic

Spray foam insulation applied to your attic ceiling can reduce and prevent water damage caused by rain water.

Cool south florida attic. If it s 90 degrees outside the attic temperatures shouldn t exceed 110 according to home inspector jamison brown of amerispec home inspection services in poquoson. A whole house fan is usually installed on the attic floor near the center of your house. If you want to cool your attic proper insulation is the best place to start. In the late evening or early morning the fan is turned on to exhaust hot air from the house.

If the attic is at 80 f and 80 humidity that s about a 21 torr vapor pressure of water. The typical method for ventilating the attic on an average home is soffit and ridge vent. Missing or inefficient insulation in the attic means that cool air in your home can easily escape. So compared to that hot humid attic the vapor pressure at the other side of the foam is a factor of six higher.

I ve read where this disrupts the natural flow up from the soffits due to old turbines and new ridge vent. They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees. The best option for insulating florida homes is spray foam insulation which has a high r value and is water resistant. You can read more about this in fsec s literature review of attic ventilation pdf.

The gf 14 is designed to mount on the garage ceiling and venting into the attic. I suspect the thinking was the more the better. It will keep the unwanted hot air out of your home and make it easier to cool your living space. The graph is from page 30.

White shingles reflect more of the incident solar radiation and stay cooler. Atticlean of south florida is your one stop solution we offer the full range of professional attic and crawl space services. At 140 f 80 humidity corresponds to 120 torr or 16 of atmospheric pressure. Cooler outdoor air enters through open windows lowering the indoor temperature.

Open your windows before you turn on the fan. I come across many homes that originally had soffit venting and wind turbines at the peak but continuous ridge venting was added later during a re roof. For the same reasons we just went over energy escaping your home will make your energy bills skyrocket. The 1 garage fan and attic cooler in the u s.

Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape. Install electric ventilators and attic fans which remove hot air from an attic. Our company service the south florida area using only the best trained and experienced technicians. The gf 14 garage fan attic cooler cools your 2 3 car garage by up to 20 degrees cooler than the outdoor temperature for heat relief and safety for people and things.