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EXTERNAL WALL INSULATION FOR SHEFFIELD

1.5mm silicone texture

Installing the base rails

example of extrenal wall insulation base track

EWI STARTER TRACK

The track is what holds the insulation boards level and are fitted above the damp proof course, this is what protects the bottom of the system

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external wall insulation boards attached and fixed to wall in sheffield

ADHESIVE AND MECHANICAL FIX

The correct way to install EWI boards is to adhesive fix the boards, adhesive is required around the perimeter of every insulation board which helps to get the wall completely flat and are attached in brick bond formation. Around doors and windows they are all interlocked at the corners to stop any cracking.  After 24 hours we then mechanically fix them together which is a nail fixing or screw dependent upon the specified system we are applying. 

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external wall insulation fitted beads around doors and windows

BEADING AND STRESS PATCHES ​

Once the boards are fitted, next we prepare all the doors and windows  with a mesh beading which is  adhesively fixed into place. Stress patches are fibre mesh cut into squares, this is placed over every overlap around the doors and windows which strengthens and stops cracking. 

1.5mm silicone texture
external wall insulation base coat with fibre mesh imbedded

BASECOAT AND REINFORCED FIBRE MESH

 

The base coat is made up of two passes of render and typically to the thickness of 6mm,with a fibre mesh embedded into the render and sits just underneath the surface.

finished silicone render texture

SILICONE THIN COAT

 

Once the basecoat has dried its then finished with a silicone primer, the thin coat render is then  applied. The silicone comes in different aggregates from 0.5mm to 3mm, there are several  finishes with different prices, there is acrylic, ,silicone and full silicone with all the major brands offering this.

external wall insulation finished project in sheffield

MANUFACTURERS WARRANTY

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On every EWI system we have a specification from the manufacturer  to follow, we send pictures and detailed information of the installation. We are a registered installer to all the brands we use to get the manufacturers warranty's.  

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