Adding Insulation To Interior Walls

Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

Adding insulation to interior walls.

Retrofit wall insulation is a debatable subject because there is no single right answer for all homes and homeowners. Many solid walls including double brick walls see figure 7 1 have a small cavity generally less than 25 mm 1 in which is a drainage plane that collects and drains water out of the wall. With a small hole and a pump you can insulate your existing walls with minimum fuss. It s possible of course to install batts between the horizontal strapping if you want to do that type of fussy work although it would be hard with 1x3s.

There are various grades of insulating batting for different locations in the house so you ll need a different insulation for interior exterior attic or basement walls. The advantages of insulating interior walls. Interior basement wall insulation has the following advantages. Most mooney walls use blown in insulation so that you get added r value from the depth of the horizontal interior strapping.

So if your house was built before insulating walls became standard you can potentially save a great deal of energy by insulating. Conserve room area relative to installing insulation on the interior. Only a cost benefit analysis in relation to your own situation can help you arrive at the right answer. In some cases the cost of adding insulation may exceed the cost of energy needed to heat or cool it.

It is much less expensive to install than exterior insulation for existing buildings. You can achieve better thermal performance in your attic by adding an additional layer of insulation. The grade of batting will vary depending on the wall that you re insulating. Insulating interior walls isn.

In an existing home adding insulation to the exterior of the basement walls is impractical. As is the case with most remodeling projects many of this house s walls were going to remain intact so tom had to consider how best to retrofit the. Fiberglass is a great way to insulate an existing wall. Unfortunately however builders didn t insulate the walls of most homes built before the 1980s.

Almost any insulation type can. Choose fiberglass insulation batting. Never insulate these cavities or plug their drain holes. The r value of the batt measures the thermal resistance so the higher the r value the more effectively.

If a house s attic or roof is already fully insulated adding insulation to the walls may be the single best way to reduce heating and cooling costs. Most communities have building codes that require a minimum amount of insulation in a house s exterior walls and ceiling. Interior wall insulation in an old house.