Airtightness of the concrete seams along the exterior of the building.
Result Blower door test: not known.
Approved installer UK:
call direct: 07949535375
Mopes Ln, Purton, Swindon SN5 4HG
Approved Installer Ireland:
Call direct: 087 659 0000
2 Charvey Ln, Commons, Rathnew, Co. Wicklow