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Adding Insulation to Existing Exterior WallsBy admin
Friday, 5 October 2018
Insulation within your home is important to keep your surroundings warm and comfortable-both inside and out.
However, your outside walls (the exterior bricks) could be inhibiting the performance of your internal insulation, as they become increasingly moist, and, therefore act as a thermal bridge – allowing the cold and damp from outside to seep in.
Even if you don’t live in a new build, you can stop miserable moisture in its tracks-simply by adding insulation to existing exterior walls.
Insulating exterior walls is done in a different way to that of internal walls– chemically bonding a spray to the surface of the bricks, and other porous materials, and thereby penetrating into them, and creating an invisible insulation barrier.
It works as a nanotechnology, bonding to surfaces, and reacting with mineral materials, to radically reduce water absorption. Adding insulation to existing exterior walls can work on both concrete and brick, protecting your property against rain, dirt, pollution, oil and algae.
So How Does It Work?
The chemical applied doesn’t damage your walls, but is able to penetrate into them up to 17mm in depth. This protects your walls from the elements, whilst still allowing the material to ‘breathe’. It must be installed by expert technicians, who carry out the installation as follows:
Inspection – A full home survey will be carried out to ensure the exterior wall insulation can be applied to your particular property.
Power washing – All surfaces that will have external wall insulation applied to them are industrially power washed to remove any accumulation of dirt, oil, mildew or algae, so the insulation can be applied afresh.
Algae treatment – If any fungus or algae is found, an algae treatment will be applied to help remove it.
Crack repair – If any cracks are found within the brick work or concrete, high-quality filler will be inserted to repair them.
Repair render – Any areas of blown or damaged render will be removed, and re-rendered. This will be done to match the existing surface, so there’s no obvious difference.
Bagging – On poor quality or unpainted surfaces, an additional stabilising process may be required. This sees an SBR or Unibond Bag Coat applied for additional stabilisation.
Masking – Anything not to be sprayed with exterior wall insulation (ie. doors, windows, drainpipes, gutters, etc.) is covered with heavy-duty cover paper and masking tape, or with dust sheets and tarpaulin.
Primer coat application – A specialist primer coat is applied to the wall to prepare it for the final insulation application.
Insulation application – The exterior wall insulation is sprayed on walls using industrial machinery, to the colour and finish requested by the customer. This will leave behind an invisible insulation barrier.
Clean-up – All masking is removed, and the site tidied up. The crew foreman will walk around the site with the customer at this point to explain the insulation in greater detail, as well as to inspect it.
Once complete, your home will have reduced water absorption through external walls by over 95%. Your external walls will have outstanding hydrothermal performance for insulation, enabling them to withstand inclement weather.
Ready to radically reduce your bills? Home Logic products enable you to achieve exactly that! Get set for significant savings by requesting your free site survey today.
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