The cavity typically varies from 50mm to 100 mm and may be unfilled or partially filled, this all depends on the building specification at the time of construction. When insulating the building, the operatives follow the NSAI and manufacturers drill pattern. This is to ensure that the cavities are fully filled. The holes are drilled into the external walls of the building and these holes are approximately (26mm). If the building is of brick construction smaller drill holes will be created on the joints, silver bead and adhesive is then pumped under pressure into the cavity.
All holes are patched by operatives after the pumping is complete. This is done by mixing different coloured dyes with mortar to closely match the existing finish or colour of the house.
For cavity wall insulation we use expanded polystyrene (EPS). This is injected in bead form and is bonded by using a Bostick glue which solidifies in the cavity. The bead is approved for installing in masonry cavity walls for both full fill and partial fill, this applies where there is a residual cavity width of 40mm or greater existing.
Filling the cavity with the Envirobead system allows the cavity to perform its function. The cavity is still able to breathe, the bead does not absorb water and will not transfer across the cavity to the inner leaf.
Depending on the size of the house, our surveyor will provide a quote whether it is through the BEH Scheme or privately.
|Energy Efficient Measures||Grant Value|
Cavity wall insulation
Any homes that were built and occupied before 2006 can apply for the Better Energy Homes Scheme. The process of applying for this scheme can be easily done. One of our surveyors would survey the property and give the customer a quote and explain to the homeowner what measures they would be entitled too for upgrade. If they are happy to proceed the application form is filled out and once approved work can progress.
Available to any homeowner providing their house has been constructed any time before 2006.
Upgrades include attic insulation:
Measures are carried out at no cost to the homeowner.
To qualify you must:
Keep up-to-date with us on social media.