Best Way To Add Insulation To Existing Walls

How to insulate house walls from the outside.

Best way to add insulation to existing walls.

If the crawlspace isn t ventilated it may have insulation in the perimeter wall. Insulation in house exterior walls is one of the primary defenses against heat and energy loss. Poorly applied insulation may cause mould problems or thermal bridges i e. Blowing insulation into existing wall spaces can and will make the walls more sound proof and prevent noise from getting in and out of the room.

Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home s walls thermal performance and reducing energy use while reducing heating bills carbon footprint and improving a building s comfort level. To insulate an existing wall you are looking at 3 major options. Whichever method you choose the insulation needs to be put in place with the greatest care. Blow either loose fill cellulose or spray foam into walls from the outside with.

Points where the insulation barrier is interrupted. It can be added into walls after construction a task that is very difficult with other types of insulation. How to add soundproof insulation inside the wall if you want to soundproof your existing interior walls insulation is one of your best friends. Unfortunately however builders didn t insulate the walls of most homes built before the 1980s.

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. With an stc rating of 44 it can be very effective at helping to soundproof both interior and exterior walls. With a small hole and a pump you can insulate your existing walls with minimum fuss. If your house is relatively new it may have insulation outside the basement or foundation walls.

Fiberglass is a great way to insulate an existing wall. 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 energy saving material without gutting the. It may look easy to go buy some packs of rigid insulation panels down at the. So if your house was built before insulating walls became standard you can potentially save a great deal of energy by insulating.

The builder or the original homeowner might be able to tell you if exterior insulation was used. You can also add insulation to existing walls without removing drywall by cutting holes in the exterior siding. In a perfect world you would be able to unscrew invisible bolts remove drywall panels install insulation and reinstall the panels our less than perfect world of permanently attached wallboard means time consuming hacking away of gypsum individually removing drywall screws or nails installing r 13 or greater fiberglass roll insulation and re installing the drywall.