External / Solid Wall Insulation & Rendering

WHAT IS EXTERNAL WALL INSULATION?


External wall insulation boards are fixed to the outside of a property. The insulation boards are then generally rendered to give a protective and decorative finish to the exterior. The finish can be smooth, textured or painted, tiled, paneled, pebble-dashed or finished with brick slips to provide a real masonry brick finish. For even more information take a look at the energy saving trust website here.

WHAT ARE THE BENEFITS OF EXTERNAL WALL INSULATION?


Solid walls let twice as much heat escape as cavity walls. External wall insulation reduces the loss of heat substantially thus decreasing the amount of fuel used to heat your home. It also protects the exterior of your home by filling cracks and gaps, acts as weatherproofing and provides improved sound insulation.

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Cross section of external wall insulation structure
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Adhesives

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Thermal Insulation

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Mechanical Fixing

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Reinforced layer – Base coat with glass fibre mesh embedded

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Primer coat

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Finishing coat and render

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If your home was built before 1930, its external walls are probably solid rather than cavity walls. Cavity walls are made of two layers with a small gap or ‘cavity’ between them. Solid walls have no gap, so they let more heat through.

Solid wall homes cost more to heat and are more prone to condensation damp than modern cavity wall built properties. When it comes to insulating your home, retro-fitting External Wall Insulation (EWI) is the most thermally efficient way of reducing heat loss in solid wall houses.

WHAT OUR HAVE TO CUSTOMERS SAY

Fantastic service, installers were very courteous at all times. A real credit to your company.

S Malyon-DaviesFryerning

Enviro-Therm have delivered above and beyond our expectations. Our external insulation and render looks fantastic, and our house is so much warmer already.

S RobinsonBraintree

I recently had my loft insulated by Enviro-Therm, they were very tidy and efficient and I would certainly recommend them.

Mrs AdamsStevenage

Enviro-Therm carried out a render to the back of our house. They were very professional and the finish was excellent. We are certainly going to be having them back to insulate and render the front of our house.

Mr and Mrs PritchardLoughton

THE PRODUCTS WE USE

Weber Saint-Gobain logo
Therma bead logo
Knauf-Insulation company logo
Kingspan Insulated Panels logo
Celotex logo
Parex logo

OUR ACCREDITATIONS

national insulation association logo
Safety Schemes In Procurement logo
CHAS logo
Safety Management Advisory Services logo
Energy Saving Trust logo
British Board of Agrément Logo
Enviroment Agency logo
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