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External walls let through twice as much heat as cavity walls, approximately around 45% but they can be insulated from outside and this will cut heating costs considerably. If the house was built before 1925, it will most probably have solid walls. External wall insulation involves fixing a layer of insulation material to the wall, then covering it with a special type of render. Insulating boards of around 90-120mm thickness are attached to the exterior walls using adhesive and special fixers. The boards are then covered with a protective, re-enforcing mesh which is then rendered.
Solid wall insulation is a solution for these properties. Although this type of insulation is more costly than cavity wall due to the process involved, the potential savings on your bills will be bigger too, as much as £460* per year (*Detached House, Source , Energy Saving Trust). Cavity walls have two layers of brick with a gap in between. Solid walls have no such gap and as a result they let more heat through therefore warmth cannot be retained but the good news is solid walls can be insulated from the outside
External wall insulation involves fixing a layer of insulation material to the wall, then covering it with a special type of render. Insulating boards of around 90-120mm thickness are attached to the exterior walls using adhesive and special fixers. The boards are then covered with a protective, re-enforcing mesh which is then rendered.
In relation to external wall insulation it has to be made sure insulation complies with the current Building Regulations and the main condition to meet is the thermal performance of the insulated wall. In England or Wales external wall insulation must achieve U-value of no more than 0.30 W/m2K. The U-value is a measure of how quickly heat will pass through the wall - as a rough guide 90-120mm of insulation will be used to achieve 0.30 W/m2K. We will ensure that insulation process meets the standards.
Once your installation is completed we will issue you a 25 years guarantee for material and workmanship, leaving you with peace of mind and a warmer home.
Please follow the following 4 step below to check your eligibility and claim your Grants.
Takes only 55 second to enter your details into the online form to calculate your grant.
We will inform you once your application form has been processed.
A free no obligation assessment will ensure your property is suitable.
A convenient date & time will be arranged measure to be installed at no cost.