Airtight Fittings
Sealed against air movement through the ceiling, so warm damp bathroom air is not pumped into the loft every time the extractor runs. It matters more in a bathroom than in any other room, and it shows up in your heating bill.
Sealed against air movement through the ceiling, so warm damp bathroom air is not pumped into the loft every time the extractor runs. It matters more in a bathroom than in any other room, and it shows up in your heating bill.
