When performing renovations on an exterior wall, it isn't uncommon to discover that the exterior wall lacks insulation. Suddenly, the reasons behind high energy bills and uneven heating become crystal clear. If the exterior wall is very drafty, you will need to first figure out if there are any specific problems that are causing the wall to be poorly insulated. Then, it is time to make the necessary adjustments and add more insulation to the wall.
Maintenance Problems With The Wall That Will Require Insulation
The sheathing might not be very tight against the framing. This can create a cavity through which cold air can pass, which can lead to a very cold room. There may be damage to the wall that could be contributing to the insulation problems. For instance, termites may have chewed through the wall and the damage may create openings through which cold air can pass. These problems can only be solved through the thorough renovation of the wall. Fortunately, if there are any gaps in the wall, these caps can often be solved by placing foam boards in the back of each cavity. The foam can be sealed into place using a spray foam. Then, the foam needs to be tacked into place until the insulation hardens.
Correcting Inadequate Insulation
The most fixable problem is inadequate insulation. The type of insulation that was added to the wall might not be the best type. Or, there might be the right type of insulation, but not enough of it. Or, even if the insulation is the right type with the right amount, the insulation may have not been installed correctly, leaving gaps that allow for cold air to pass through. Finally, you should check specific areas, such as the band joist, to find out if there was not enough insulation added to it. The band joist can be corrected with blocks of XPS that can be held in place using spray foam. That will help reduce the air leakage and will help seal the home to the extent where it can prevent pests from entering.
When you discover that an area of your home has horrible insulation, you could try to figure out what is wrong and correct it yourself. However, there are likely some insulation issues that will only be noticed by a highly skilled insulation contractor. Insulation contractors can place the right insulation in the right locations to improve the R-value of your home, lowering energy costs. To learn more, contact a company like Mincin Insulation Service Inc.