This is why people hire contractors to do this work.
Work in shallow attic.
It helps to cool your home temperatures and the attic by approximately 30 degrees.
It doesn t matter how shallow your attic is.
The increase in the use of complex roof shapes and cathedral ceilings has resulted in problems with vented roofs.
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.
Soffit vents are the small metal or plastic grates you probably have seen under the eaves of houses.
Attic air leaks are cracks holes or other weak points where air can enter or exit the home.
While you are up in your thankfully clean and relatively insulation free attic you absolutely need to do some air sealing.
Ceiling joists are the horizontal boards that span the width of the house resting on the outer wall plates and possibly on.
You are going get scraped up by nails.
The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.
They allow the fresh air to travel up under the roof to the ridge or gable vents keeping the roofing materials dried out and in good working order.
The whole house fan is installed inside the attic between the living space and ceiling.
Rafter vents should be placed in your attic ceiling in between the rafters at the point where your attic ceiling meets your attic floor.
Left unfixed attic air leaks can leak heated air during the winter and cool air in the summer forcing your hvac to work harder and increasing your utility bill.
However they work best with airtight ceiling attic interfaces and where ductwork and air handlers are not located within attic spaces.
Attic leaks can also provide starting points for serious water damage.
The only time i wouldn t recommend a ridge vent is for cooler climates.
The hot air will work its way up.
Powered gable venting is one of the least effecient methods of moving air in your attic.
Work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just put in.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and to prevent thermal bridging the heat loss that occurs through the wood framing.
Whole house fans work on the principle of removing the hot and humid air out of the house.
Vented attic roof designs have the advantage of a long proven historical track record.