simple fixed by inserting short pieces of plastic water main pipe where the first layer of felt overlaps at the bottom, allowing air through the gap created and thro the pipe. if the pipes want to slip through the felt laps then simply fit a screw into the top of said pipe thus stoping it falling through
Doesn't this indicate poor airtightness of the attic floor, letting in interior humidity into the cold roof space which then condenses? Just like it does on walls near windows inside the house?
simple fixed by inserting short pieces of plastic water main pipe where the first layer of felt overlaps at the bottom, allowing air through the gap created and thro the pipe.
if the pipes want to slip through the felt laps then simply fit a screw into the top of said pipe thus stoping it falling through
Pull that insulation away from felt air flow is blocked
Doesn't this indicate poor airtightness of the attic floor, letting in interior humidity into the cold roof space which then condenses? Just like it does on walls near windows inside the house?
Uninsulated loft hatch, to much heat escaping from the living quarters
Check the basement -if dirt floor needs vapor barrier. Venting will help but stopping moisture from entering is key to solving issue
They will be breathing indoors, cooking food or showering. Big cause of that
They will be drying washing indoors. Usually the biggest cause of that
Very good point
Manthorpe lap vents mate
Tile vents will help if you put them near the ridge