Insulating Outside Walls From The Inside

Choose fiberglass insulation batting.

Insulating outside walls from the inside.

The facing is a vapor retarder meant to slow the migration of water vapor through the wall. 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. I d like to add insulation to a wall during a renovation. Solid walls can be insulated though either from the inside or the outside.

It may look easy to go buy some packs of rigid insulation panels down at the. Insulation in house exterior walls is one of the primary defenses against heat and energy loss. Solid walls have no gap so they can t be filled with cavity wall insulation. You can also lower your heating and cooling bills and reduce energy waste.

The house was built conventionally with 2 4 walls fiberglass batt insulation fiberboard sheathing and hardboard siding. The grade of batting will vary depending on the wall that you re insulating. Cavity walls are made of two layers with a small gap or cavity between them. Gregg is renovating his 50 year old house in wisconsin and trying to devise the best way of insulating exterior walls from the outside.

The machine that blows the fiberglass or cellulose insulation into the walls has a large hopper to hold material and a long hose with a nozzle about 2 inches in diameter. Insulating properly can lower your energy usage and help keep you comfortable regardless of the season. 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. Filling walls with a fluffy layer of fiberglass insulation is one of the easiest and least expensive ways to make your home more energy efficient.

So if your house was built before insulating walls became standard you can potentially save a great deal of energy by insulating. Proper insulation of your inside exterior walls is key in keeping your rooms cool in the summer and warm in the winter. All it takes is a utility knife a straightedge and a little patience to make sure the insulation. The r value of the batt measures the thermal resistance so the higher the r value the more effectively.

Remember any cracks gaps air voids or. What should i keep in mind. How to insulate house walls from the outside. If warm moist air from inside a house travels through the wall it will condense when it hits the cold sheathing on the outside.