Site visit yesterday to Stoke on Trent ' Retrofit for the Future' Project with Sanctuary Housing. The new timber triple-glazed windows are in and looking fantastic. It's been noticed that as well as keeping the heat in the house during construction, they also provide great sound-proofing to outside noise.
It's also been noticed on site that now the air-barrier and insulation is all installed to the main house, it's so warm to work inside the house, even during the really cold spell of weather we've been having.
Now the main house air-tight membrane has been installed and the windows are in, an air-test was carried out last week mid-construction - (the rear extension not yet built due to snow, so large opening in rear of ground floor was sealed with large sheet of membrane).
A result of 4 was achieved - a fantastic improvement from the existing result of 17 from the test the Energy Saving Trust carried out - but still a way to go to our target of 1.
Main leakage points were the party walls where existing plaster patched, so skim coat to entire party wall to be carried our. Also leaks from electrical back boxes in the party wall, so to be re-bedded with plaster behind the boxes.
Project due for completion in January - so keep posted and check out the project blog more info on the project.