House With No Attic Insulation

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.

House with no attic insulation.

This allows a lot of heat up to the attic. Plan to pull up the flooring and layer new insulation on top of the old. 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. 10 of your home heating bill costs stem from uninsulated floors.

There are no one size fits all solutions. 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. Based on my experience with houses built in 1950 s you should be 100 sure there is no insulation. 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.

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. Insulating basement walls or slab foundation can reduce heating costs by10 to 20. 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.

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.