This week began with a long drive up to Lynton to meet Nigel Bosanko and Sarah Price from Excel Industries who manufacture the Warmcel insulation we are using at Barbrook. Sarah booked a room at the Lynton Cottage Hotel which had outstanding views, lovely food and was a great venue for a small meeting.
We were joined by John from North Devon Homes, and Paul and Nikki from Ecofill Insulation who are the BBA accredited installers of Warmcel in the area. Also Adam Dadaeby, PH designer, Paul Elliott, Sustainable Energy Officer at Plymouth City Council, and Richard Squire, Private Sector Housing Officer from North Devon DC.
Nigel gave an interesting presentation about how Warmcel is made, often when they insulate schools the collect the newspaper from the school in advance and then process it and use that to insulate the school. If there are any changes to the building many years later the material can be collected, reprocessed and reinstalled somewhere else.
The Warmcel is completely safe to touch, and made from a waste product, which could otherwise be sent to landfill.
The main reason we chose Warmcel is because it offers a complete void fill which is really important in passivhaus to prevent gaps in the insulation and avoid cold spots and condensation. Later this year we’ll be able to double check the coverage when BSRIA come and do the thermal imaging. It’s a lot easier to fit than batts of insulation which would require cutting and very careful fitting to avoid gaps.
Once on site we met Rob, who has been installing Warmcel for years, so it was reassuring to watch him methodically fill the timber frame, and then feel how densely the insulation filled the void. The pump which Ecofill use allows them to set the density of material based on the size void which requires filling.
Inside the houses, there are now electrics and plumbing. The triple glazed Ecopassiv windows and doors are in, and looking lovely. Ian and Ian from Southcombe Construction (our local sub-contractors) have been working really hard to make sure the air tightness details are carried out properly and our first air test is on Friday – so fingers crossed.