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Cavity Wall Insulation Pros and ConsBy admin
Thursday, 15 November 2018
Cavity walls consist of two layers of brickwork that are separated by a gap or cavity of air. Most houses these days are built with this type of wall structure as cavity walls provide much better thermal qualities than their solid wall counterparts.
A solid wall is exactly as the name suggests – it’s just one solid wall that allows heat and moisture to travel through the brickwork.
The vast majority of houses built in the early 90s were constructed from solid walls. If you live in a period property, and find your energy bills are quite high – this could be one of the reasons why.
But what is cavity wall insulation? And what are the main cavity wall insulation pros and cons? Let’s find out…
Cavity Wall Insulation Pros and Cons
Cavity wall insulation, as it is typically known, is the process of blowing insulating material into the cavity between your inner and outer brickwork.
This is achieved by drilling a series of tactfully placed holes into the outside of your home which then access the cavity space. Hoses are then inserted into these holes and material is blown into place. In theory, the material is then meant to spread across the cavity, and completely fill the hole.
When we look at cavity wall insulation pros and cons, it’s important to keep the purpose of the material at the forefront of our minds.
The primary purpose of cavity wall insulation is to prevent heat loss and moisture build-up. But does it really do both?
The Supposed Benefits of Cavity Wall Insulation
The main benefit of cavity wall insulation is that it helps to prevent heat escaping through your wall.
By filling the cavity space with spray foam insulation, or any other product, you are effectively wrapping your property up like a big warm jacket. Just like a jacket, this keeps everything inside warm, despite the cold outside.
The material used within cavity wall insulation could range from beads to foam to woolly-types of material.
On average, most households will save around £150 each year from wall cavity insulation alone, which is not taking into consideration the additional savings of installing loft insulation, or double glazing.
The Potential Drawbacks of Cavity Wall Insulation
Moisture is often a big problem when it comes to cavity wall insulation pros and cons. In fact, some properties actually suffer as a result of installing cavity wall insulation, rather than receive any benefits.
Cavity walls are built to resist rainwater driven by wind – moisture fails to travel across the empty gap as efficiently, and therefore fails to reach the inner shell of your brickwork.
If you fill this gap with material, you are effectively providing a bridge for the moisture to travel across.
This can cause damp issues where they previously did not exist. Moisture harbours mould growth, which can have serious implications for your personal health.
The protective wall coating resists water droplets, as well as prevents dirt and debris from building up on your walls ensuring the outside of your home remains spick and span!
The Logical Alternative – Home Logic Wall Insulation
Don’t bother blindly filling in the cavity space of your home; save time by protecting the actual outside layer of your home instead!
Home Logic Wall Insulation reduces water absorption with an invisible barrier of protection that penetrates up to 17mm deep into the exterior substrate.
The protective wall coating resists water droplets, as well as prevents dirt and debris from building up on your walls.
Typically, this is a very straight-forward application process that can be achieved with minimal disruption to your home.
So why mess around with the middle when you can stop the issue right at the source of the problem?
Protect the brickwork from absorbing water in the first place, and the cavity will not be an issue! Sorted!
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