How To Properly Insulate And Vent An Attic

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.

How to properly insulate and vent an attic.

But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. Keep all insulation at least 3 inches away from can lights unless they are rated ic insulated ceiling. Install air chutes before installing insulation. In addition insulation baffles must be installed at the point where the attic floor meets the roofline to prevent the attic insulation from migrating into the cavities and restricting the airflow from the soffit vents.

Learn why it makes no sense to insulate the walls and ceiling of your attic if it is unfinished and you have no intention of finishing it. If there s blown in insulation like ours rake back the fluffy stuff with a 3 or 4 ft long 1 x 6 or use a garden rake or hoe. The soffit vents are now installed but you still need to make sure there s no insulation blocking the new vents. With a helper to load the blower with insulation as needed start at the perimeter of the attic and work toward the attic access door.

In finished attic rooms with or without dormer insulate 2a between the studs of knee walls 2b between the studs and rafters of exterior walls and roof 2c and ceilings with cold spaces above. Insulate your finished attic properly choose your insulation. If you re finishing your attic insulating it to the proper r value can cause a dramatic loss of. Your roof vents may not look.

Also when laying down additional insulation work from the perimeter toward the attic opening. Level uneven spots with a rake. 2d extend insulation into joist space to reduce air flows. Hot air exhaust vents located at the peak of the roof allow hot air to escape.

Your attic also needs passive ventilation so that the attic temperature matches the outside temperature the way it should. Look at your eaves and roof. Plan to pull up the flooring and layer new insulation on top of the old. Never lay insulation over recessed light fixtures or soffit vents.

Instead you should make sure your attic floor has sufficient insulation. Find out how to properly insulate and ventilate an attic. Touch your ceiling on a warm sunny day. Whole house fans powered attic fans.

These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and. To effectively ventilate your roof create a 1 in. Fill every joist space completely and evenly with the insulation leaving attic vents uncovered. If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air.

Because the simplest and cheapest way to insulate an attic is to add material to the floor. Find a pre screened local home insulation contractor.