Cold walls, high energy bills, and draughts inside your home are some of the signals you need to install better quality insulation.
Among homeowners. insulation in the walls of an existing house is becoming more and more popular. With people living in older houses acknowledging the fact that insulation is key to ensuring internal comfort’s maintained, we see more and more renovations projects requiring a revamp.
Whether your house is as old as the hills, or has just recently been constructed, here’s how you can add insulation to the walls of an existing house the easy way…
Upgrading Existing Insulation: Why Do It?
Higher energy bills are the main reason why homeowners are becoming more aware of the need for proper insulation in their home.
Depending on the material you choose, you can save anywhere between 10 and 50 percent of your energy bill. Insulation starts with sealing air leaks, and then adding insulation.
Depending on the age of your home, as well as the location, the R-value of your home will vary. For example, houses built before World War II are nowhere near as sufficiently insulated as the properties that are constructed today.
The best part about wall insulation is that you can add insulation in walls of existing house without removing drywall. You do not even need to cut holes in the exterior siding. Some homes nowadays are specifically designed to be as energy efficient as possible.
Unfortunately, some modern homes still leave a lot to be desired, and they definitely need insulation to offset the high energy bills that ensue.
What Are The Costs?
There are many variables that determine the cost of insulating an existing house. For starters, the size of the surface area is the predominant, determining factor.
However, there are also many other factors at play. For example, if a home is more than one storey high, there will be additional costs because of the difficulty of the job.
The type of siding on the house is also a factor. Bear in mind that contractors work from outside of the house when insulating the exterior walls. The material of your home also plays its part.
Insulation Inspection: All You Need to Know
To attain a better understanding of your home’s insulation requirements, perform a simple test. You can easily check and evaluate the insulation in your home.
You can check the attic, floors, and walls in an unheated place. And you will see the type of insulation that’s currently there, and then measure the depth.
As for checking insulation, and inspecting the exterior walls, do the following. Start by turning off the power to the outlet. Now, remove the outlet cover, and then shine a flashlight into the crack around the outlet box.
You will be able to see if there is any insulation, and check its thickness.
Internal and External Insulation: What’s the Difference?
We mentioned previously that exterior insulation is usually the first choice. But let’s first determine the difference between internal and external insulation before we make any immediate assumptions. Like most things in life, each comes with its own set of advantages and drawbacks.
Internal wall insulation is cheaper to install, and you can do it room by room. However, you will slightly reduce the floor area of the room that you apply it to. The downside of internal wall insulation is that if installed by an unlicensed contractor, can leave you with decidedly dodgy repercussions.
External wall insulation, on the other hand, does not reduce the floor area of your home, and can be applied without disruption to the household. When applied, wall insulation renews the appearance of your outer walls.
By protecting the brickwork, external walls insulation increases the life of your walls, and improves the weatherproofing and sound resistance of your household. The downside is external wall insulation might require planning permissions, and you should check this with the local council.