Where To Insulate An Attic

Lay the batts across the ceiling joists covering the existing insulation.

Where to insulate an attic.

You ll want to buy enough batting to lay at least 10 to 14 inches over the entire space. At the same time the areas below the roof benefit from increased comfort both during the winter and the summer. You get a free blown in machine rental with your insulation purchase. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.

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. In addition to walls and attics insulation should be installed in ceilings with unheated spaces basement walls floors above vented crawl spaces cathedral ceilings floors over unheated garages or porches knee walls and in between interior walls especially bathrooms as well as ceilings and floors. Additionally purchase some loose fill insulation to insulate corners and angles where the batting won t fit. Before installing or adding attic insulation take these steps.

Get a free 24 hour blown in machine. 2d extend insulation into joist space to reduce air flows. Use the fire blocking type. It makes adding insulation to your attic a breeze.

In this video this old house general contractor tom silva and host kevin o connor explain how to insulate an attic. So it s time to pay close attention to what s happening up there. There are two basic ways to insulate a finished attic. While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.

If only the living space will be insulated wrap the insulation around the room s walls and ceiling and then continue along the floor of the non living space. Blown in insulation is installed using blowing machines. We love our diyers so take up our incentive to improve your attic insulation situation yourself. In this case the area behind the knee wall will be uncomfortably hot or cold.

To insulate an attic get some batting made out of mineral wool fiberglass or recycled foam. In this way you prevent the heat from the rooms below escaping to the attic rooms above. But the best solution is actually to insulate both the attic floor and the underside of the roof. Cut and fit strips of 24 gauge sheet metal between the masonry chimney and the surrounding wood framing.

Use caulk and expanding foam the fire blocking type sealant to close air gaps around pipes ducts and electrical wires where they enter the attic. 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. Because the simplest and cheapest way to insulate an attic is to add material to the floor.