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.
Attic ridge ventilation.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
30 lineal feet required.
To install the rafter vents staple them directly to the roof decking.
However the utility of attic ventilation fans is actually quite a.
Ridge vent must me installed per the manufactures instructions.
Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.
Thick ridges of ice on your eaves in winter are a sign of poor attic ventilation.
Rafter vents come in 4 foot lengths and 14 1 2 and 22 1 2 inch widths for different rafter spacings.
See the benefits of attic ventilation.
Lowering the temperature in the attic can help reduce air conditioning energy costs and roof deck temperature optimize the service life of a roof covering and minimize ice damming.
Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent.
Warm air that escapes living space also carries moisture that will condense on rafters or roof sheathing.
Intake vents located at the lowest part of the roof under the eaves allow cool.
Ventilation and attic vents.
The downside of attic ventilation fans.
Attic ventilation serves two main functions.
Warm air that escapes rooms below gets trapped in the attic.
It can do both.
This happens because of the change in air pressure.
Ventsure rigid roll ridge vent.
A ridge vent is a ventilation strip that is placed along the ridgeline of the home.
A new roof is more than just shingles.
One last thought attic ventilation is not there to get rid of heat it is there to get rid of excess moisture accumulating from the home.
Insulation at least r 38 or more is there for heating and cooling.
Ventsure 4 foot strip heat moisture ridge vent with weather protector moisture barrier.
Best ventilation is open soffit venting to a open vented ridge vent.
To lower attic temperatures and to remove excess moisture.
Help remove excess heat and moisture to protect your roof from premature deterioration.
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.
The inside air moves through the ridge vest underneath the cap shingle to escape from the side and into the general atmosphere.
Prior to installing the ridge vent a 1 inch wide strip of roof decking is cut out along both sides of the ridgeline to allow for air movement through the vent.