Been insulating the loft, I know the idea is to leave a gap for air circulation but on the front side of the house the gaps between rafters have been bricked up. Back side of the house seems to have fewer bricked up. There’s a good big overhang on the roof with vents all along the soffit. The membrane on the underside of the roof has an air gap between it and the tiles, though there are what feels like horizontal battens running across it which would stop much air flow I guess.
I know the roof was redone about three years ago so the infill bricks probably happened then.
What do?
I’ve put the insulation right up to the bricks and there is still a gap between it and membrane. Just keep and eye on it and look out for rotting rafters?
I've said it here before: fit lap vents, lots of them. Small plastic vents that slot in between the layers of membrane to create airflow. Although if your roof is that new then maybe the membrane's breathable, I guess additional ventilation wouldn't hurt though.
Been insulating the loft, I know the idea is to leave a gap for air circulation but on the front side of the house the gaps between rafters have been bricked up. Back side of the house seems to have fewer bricked up. There’s a good big overhang on the roof with vents all along the soffit. The membrane on the underside of the roof has an air gap between it and the tiles, though there are what feels like horizontal battens running across it which would stop much air flow I guess.
I know the roof was redone about three years ago so the infill bricks probably happened then.
What do?
I’ve put the insulation right up to the bricks and there is still a gap between it and membrane. Just keep and eye on it and look out for rotting rafters?
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