Insulating A House Without An Attic

I would lean toward adding rigid foam either on top of the roof or on the inside under the joists if reducing headroom isn t a problem.

Insulating a house without an attic.

Portable air conditioners do need to be vented to pump the hot air outside. Insulating a slab in an existing home can be expensive and disruptive but if the slab in your home is cold it is possible to dig around the perimeter of the house and install insulation usually foam board. If you think you need more insulation consult a reputable expert. The r value is greater than fiberglass and it is fire retardant.

Apply a house wrap vapor barrier to exterior walls. It s a standalone unit that s about two feet tall and 18 inches wide and has wheels for mobility. Finally run a standard utility knife along the edge of the lumber through the insulation and down to. Depending on your climate you ll need r 30 to r 49 to meet code which is 5 to 8 1 2 inches of polyiso rigid foam which is r 6 per inch.

Install siding over the insulation. Lay a two by four on top temporarily compressing the insulation to a manageable thickness. Attach 1 inch foam board insulation. One way to insulate walls of an old house is to focus on the home s exterior.

Adding some insulation to it would also be helpful. But this will require either cross battening and a metal roof on battens or else a new layer of decking. But if you ve got an unfinished attic giving it proper insulation is one of the simplest ways to keep a lid on your heating bill this season. Over insulating an attic or crawl space won t save you enough money on power bills to make the expense worthwhile.

Mini split ductless air conditioner. The best way to insulate attic doors is to make a pillow made of insulation batting. In most parts of the united states insulating the exterior edge of a slab can reduce heating bills by 10 to 20. It s a diy project you can tackle in a weekend and the savings you ll get add up every year says toh general contractor tom silva.

Replace old windows with energy efficient units. For a greener insulation project cellulose blown in insulation is available. A portable air conditioner is the easiest solution for cooling your attic.