The house was well insulated underground as the basement and ground works were completed. Now it is time to insulate the main, above ground portion of the house. The most efficient and environmentally friendly material for this is cellulose. It is widely used in other countries around the world, but is relatively unknown in the UK. This website provides a lot of interesting background – www.cellulose.org
This morning, 7 tons of the product were delivered to site. Unfortunately the haulage company did not listen to advice and brought the wrong kind of truck. It was only due to the heroic efforts of Joe and the team from Devana that the truck was unloaded and work could continue.
The cellulose is supplied in bales. It is basically paper mixed with chemical to prevent fire and animal ingress. The bags are loaded into a pump in the back of a van.
Inside the house holes are drilled into the plasterboard
Hose bring the material mixed with air into the house. Where it is pumped into the walls
Samples are taken from lower down the wall and checked to ensure the correct filling density.
In total around 13 tons of the material will be pumped into the house. It also contributes to the air tightness of the building and helps with sound problems.