Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof.
Adding attic ventilation.
Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic.
However the utility of attic ventilation fans is actually quite a controversial topic.
Intake vents located at the lowest part of the roof under the eaves allow cool.
At first it may seem odd to add insulation for warmth and then purposely allow cold air to enter the attic through vents but this combination is the key to a durable and energy efficient home.
Photos 1 6 show how it s done.
One reason for the lack of agreement over attic ventilation is the tremendous variation in climate across north america.
Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Increased ventilation will make the entire roof cold and reduce or eliminate ice dams.
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.
See the benefits of attic ventilation a new roof is more than just shingles.
Just like properly sizing your furnace and air conditioning unit you want precisely the right amount of attic ventilation for your home.
Rarely will you find a building practice that works everywhere.
About attic ventilation natural attic ventilation.
In the winter allowing a natural flow of outdoor air to ventilate the attic helps keep.
Good insulation reduces fan effectiveness.
For instance attic ventilation is used widely in cold climates to evacuate the warm moist air that escapes from the living space below.
The downside of attic ventilation fans.
The ice traps water behind it allowing the water to seep back under the shingles and leak through the roof.
Insufficient ventilation can lead to moisture problems during the winter and decreased.
As the ventilation helps moderate the temperatures in the attic this may also help moderate the temperature in the rest of the home it helps prevent moisture buildup in your attic which during colder months can help prevent condensation issues that can affect the materials in the attic space especially insulation.
Add a dab of cement to secure the shingles to the attic vent cover base.
Adding attic vents is a simple matter of cutting holes and installing vents.