Missing insulation allows either heat or cold to infiltrate, which shows as hot or cold spots on your walls or ceiling when viewed by a thermal camera. You can easily detect areas of missing insulation by walking around your house with a thermal imager and looking for temperature differences.
To check the level of your wall insulation, consider purchasing an infrared thermometer. The device will detect any poor insulation and alert you of any specific problem area.
Based on new research, the North American Insulation Manufacturers Association (NAIMA) estimates that roughly 90% of existing U.S. homes are under-insulated. That means that the occupants are less comfortable, and both energy and money are being wasted.
About 35% of the heat will escape through the walls and through gaps, in and around windows and doors, and about 10% of heat will disappear through the floor. Taking action to make sure your home is energy efficient has many benefits. For your pocket, for your comfort and for the environment.
Yes, insulating interior walls can improve energy efficiency, reduce noise, and enhance comfort, but it's essential to weigh the benefits against the costs and potential drawbacks.
How heat escapes from your home. If you're asking yourself Why is my house so cold even with the heating on? or Why is my house not staying warm?, the truth is that air leaks—along with insufficient insulation—cause heat to escape directly from your home.
If you're wondering what bad insulation looks like, check to see if it is moldy, wet, or discolored. It may be unevenly dispersed and thin in areas.
What causes cold walls? Poor insulation is the main reason why walls feel cold, especially in older properties with solid walls. Roughly 35% of heat loss is through walls and gaps, in and around windows and doors. Walls transfer heat and the warmth from your home will escape outside if your walls are poorly insulated.
A qualified home energy assessor will include an insulation check as a routine part of a whole-house energy assessment. An energy assessment, also known as a home energy audit, will also help identify areas of your home that are in need of air sealing.
An estimated 25% of all heat loss occurs through the attic or roof of a home. Cracks or holes in an attic, along with improperly placed vents, allow for significant amounts of heat loss through the attic space. In addition, improper ventilation in attics leads to even more heat escaping.
Do the touch test. The interior ceilings, walls and floors in your home should feel warm and dry. When drywall and paneling inside a home feels damp or cold, there is not enough insulation. Alternatively, when touching an exterior wall, it should feel cold because insulation is keeping warm air inside a home.
Insulation slows the movement of heat through the walls, roof, and floors, maintaining a more consistent indoor temperature. Without insulation, the interior surfaces of a home can become significantly cooler than the air inside, leading to condensation when moisture in the warm air condenses on these cold surfaces.
Check Your Wall Insulation Level
Remove the outlet cover and shine a flashlight into the crack around the outlet box. You should be able to see if there is insulation in the wall and possibly how thick it is. Pull out a small amount of insulation if needed to help determine the type of insulation.
Here's another great way to tell if your home is well insulated. Use your hand to check the temperature of interior walls, floors, and ceilings. If they feel warm and dry, you are in good shape. If they feel cold or damp, then you have an insulation problem.
Choosing thermal curtains can help to reduce heat transfer on the coldest days of the year. Add a ductless HVAC system. A ductless HVAC, also called a split system, allows for supplemental heating and cooling where you need it. Maintain your HVAC system.
Many people check for insulation by cutting a huge hole in their drywall. This is labor intensive and can ruin the wall. Luckily, there's a simple alternative: inspecting the drywall through a cutout that holds an electrical box. These are built-in holes that hold outlets, light switches, and more.
In most cases, interior walls are not insulated during construction. Unlike exterior walls, which must meet local and state codes for insulation, interior wall insulation is rarely required. This is because interior insulation has much less impact on your home's energy efficiency – but it can still play a role.