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How to Put Insulation Into Existing WallsBy admin
Thursday, 5 December 2019
When you consider installing insulation into your home, it’s often your loft space and under-floor crawl spaces that you think of dealing with first.
Unless you have a new build in progress, wall cavities are normally either left empty, or have already been filled with panelling-type insulation.
There is a way of improving your existing wall insulation though.This guide explores how to put insulation into existing walls within your property. Let’s begin!
Spray Foam: An Effective and Efficient Solution
It’s unlikely that you’ll want to demolish or pull down walls in order to put new insulation in. The good news is: you don’t have to!
Spray foam insulation is an industrial foam that’s 100% water-blown, and 100% effective at improving your property’s energy performance.
Once mixed and in the air, it expands up to one hundred times its original size, filling all available space, regardless of shape or size.
It can be applied by being sprayed directly onto a service and sticking to it (i.e. roof rafters or walls), but in the case of existing walls for a retrofit of insulation, there’s another method to consider.
The ‘drill and fill’ method to install insulation is easy and creates as little mess as possible whilst still giving you a comprehensive insulation solution.
The spray foam solution gives a complete seal against the exterior wall, acting as an airtight barrier, blocking both cold air and moisture from passing through. The holes can be filled and covered over either by yourself when you’re ready, or by the insulation technicians
How is Spray Foam Installed?
A small hole, or series of holes, are drilled into the wall through to the empty cavity behind. The holes are carefully located and drilled through to avoid studs, or other obstructions within the wall cavity.
The room around it is either emptied, or covered in dust sheets as required, to minimise mess and dust. If there are horizontal supports behind the cavity preventing an entire fill, then holes lower down the wall will also need to be made, for portion insulation blowing.
For smaller holes or cavities, the insulation may be injected in in small quantities, rather than blown through.
In the case of spray foam insulation, the foam is created by mixing equal parts of a chemical called Methylene Diphenyl Diisocyanate (MDD) that’s used to make polyurethane, and water. It’s mixed using specialist equipment, and blown in through the holes to fill the space behind.
Spray foam takes up to 24-hours to dry, after which point the holes can be filled and covered.
The spray foam solution gives a complete seal against the exterior wall, acting as an airtight barrier, blocking both cold air and moisture from passing through. The holes can be filled and covered over either by yourself when you’re ready, or by the insulation technicians.
To chat with the Home Logic team of experts, and arrange a free, no-obligation home survey, at a time that suits your schedule, simply call 0800 1700 636
Home Logic: Professional Product, Professional Service
Installing insulation into an existing wall is far from a ‘D.I.Y job. Applying spray foam in the correct amounts is something of an exacting science, and, consequently, should only be attempted by a trained technician.
Home Logic’s team of spray foam technicians are fully BBA (British Board of Agrement) certified and accredited, ensuring your peace of mind before, during and after installation.
To chat with the Home Logic team of experts, and arrange a free, no-obligation home survey, at a time that suits your schedule, simply call 0800 1700 636, or click the button below!Related Home Logic Living Articles
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