A portable air conditioner is the easiest solution for cooling your attic.
How to ventilate your attic.
A sign of roof leaks from ice damming or other causes.
Obviously more research is needed but here s what we do know.
Most come with a window kit for this purpose that attaches to a hose on the back of the unit.
Touch your ceiling on a warm sunny day.
The venting space should be equally divided between intake.
Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.
Portable air conditioners do need to be vented to pump the hot air outside.
If you have either ice dams or moisture buildup improve your attic ventilation.
Most building codes require a ratio of 1 150 ventilation space to attic floor space.
Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation.
Begin by making sure your existing system works photos 1 and 3 plugging major air leaks into the attic photo 2 and correcting any other of the common causes of poor attic venting.
Your actual living space is sealed.
In other words the entire vent opening doesn t count as vented space.
Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.
Once they are in place you can then place the batts or blankets or blow insulation right out to the very edge of the attic floor.
Rafter vents should be placed in your attic ceiling in between the rafters at the point where your attic ceiling meets your attic floor.
Calculate net free vent space building codes typically require 1 square foot of venting space for every 150 square feet of attic space.
You can also contact your local municipality to check on building code in your area.
If you don t see any attic vents on the roof or in the eaves you need to add some.
Intake vents which are located at the down slope edge of the roof aka eave s and allow fresh air into the attic.
To properly ventilate an attic two types of vents are needed.
A hot ceiling tells you that the attic is acting like a solar oven.
It s a standalone unit that s about two feet tall and 18 inches wide and has wheels for mobility.
That said air resistance and interference such as vent grates reduces the area of true ventilation.
If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the.
Look at your eaves and roof.
Here are four signs of an unventilated or under ventilated attic.
