House With No Attic Insulation

Insulating basement walls or slab foundation can reduce heating costs by10 to 20. Warm spaces have less condensation risk than colder space so when you add insulation to the attic floor you re intentionally blocking some of that heat from keeping the attic warm. Adding insulation where it was never designed to go mainly the walls of an old house causes a host of problems all due to the moisture issues it creates.

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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.

House with no attic insulation.

Not unless previous owners added some. Because the simplest and cheapest way to insulate an attic is to add material to the floor. Many homes are leaky and have insufficient insulation in the attic. Plan to pull up the flooring and layer new insulation on top of the old.

10 of your home heating bill costs stem from uninsulated floors. Attic ventilation and you do have an attic so to speak i ll get to that in a minute is a science that is unique to the architecture of each building. Here are just a few of the highlights. This allows a lot of heat up to the attic.

Based on my experience with houses built in 1950 s you should be 100 sure there is no insulation. There are no one size fits all solutions. For example on a hip roof ridge vent is usually not the way to go on most hip roofs there simply isn t enough ridge length. If outside is brick one option is to rip out the interior plaster walls put extruded polystyrene rigid board insulation and re frame drywall.

Wall insulation can reduce a home s heat loss by 67 while attic insulation can lead to a 40 decrease in heating and cooling costs.

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