A different animal first think of your attic and roof as a separate entity from your home.
Attic air flow.
Baffles are available at home centers.
Box out light fixtures.
The ice traps water behind it allowing the water to seep back under the shingles and leak through the roof.
Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
Proper insulation and air sealing also keeps attics cold in winter by blocking the entry of heat and moist air from below.
Misconceptions about the air flow in your attic can lead to thousands of dollars in damage and repair costs.
It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow.
Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge.
53 lineal feet required.
The following product options will allow you to achieve an intake nfva of 528 square inches.
Allows cool dry air to enter the attic.
We insulate moisture proof and throw up every barrier to heat and cold.
Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be.
The solution is to add baffles which allow air to flow past the insulation photo 9.
In the summer natural air flow in a well vented attic moves super heated air out of the attic protecting roof shingles and removing moisture.
Fans and vents may be installed on the roof system that will draw the air out of the attic space and exhaust it to the exterior.
Ventsure inflow intake vent.
If your attic is well insulated the insulation might be plugging the spaces between rafters just above exterior walls.
These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and automatically exhausts the attic space.
I have large attic with ridge vents and screened vents at either end of the attic to maintain air flow.
These ice dams form when warm attic air melts the snow on the roof and the water refreezes along the colder edge of the roof.
I have a shop in my attic for some of my hobbies and it get s very hot in the summer.
Can i put a small swamp cooler or ventless a c unit up there to cool it only to use while i am in my shop maybe an hour or two a couple times a week.
Your home is a heated conditioned area that is designed to keep air in.
Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space.
The insulation will resist heat transfer into the house.
Choose one of the following products to meet the recommended intake nfva of 528 square inches.
Whole house fans powered attic fans.
