read with interest the condensation threads/stickys
i had seen (in a recent cold night) a lot of moisture dripping from the felt in the loft (like others noticed it when got the xmas decorations down).
not a huge surprise as the house gets a lot of window condensation in the winter (despite recent doubleglazing, tho maybe this just helps to trap the warm air).
but specific to my query on the loft
1) no pipework up there as have a mains pressure hw tank and mains pressure cw throughout
2) both upstairs ensuites have a small number (3) of downlighters (the large bulb variety)
3) i had pulled back the loft insulation a little from the soffit area the other year, as they seemed to be blocking it
4) i checked last night that the fans were connected to some kind of ducting in the loft - they are, but not very securely
On the latter point, i can't imagine a lot of moisture would escape given the ducting is not taped directly to the extractor fan, although it is a reasonably snug fit.
However, i do wonder if it matters that the length of the ducting runs all the way from the extractors (which are just about equidistant from the front/back sides of the house). This must be some 15 feet of ducting before reaching the soffits.
Am yet to check that soffit end of the ducting is actually ejecting the warm air to the outside and not just some far corner of the loft!
But this all said and done, as mentioned, i know the house carries a lot of moisture due to having the wipe down the windows every morning in the winter, despite them being decent double glazing. So this moisture naturally is finding its way in to the loft also.
Grateful for any further tips. Washing is dried outside or using a tumble dryer in the garage. Cooking is done with the extractor on, but we do have 3 small children and they generate a lot of dampness i can tell you!
One last point, the entire house has been painted with that paint that can be wiped down (from pen, crayon, etc). This is water resistant right so does that increase the likelihood moisture will cling to the windows / go to the loft??
m.c.
i had seen (in a recent cold night) a lot of moisture dripping from the felt in the loft (like others noticed it when got the xmas decorations down).
not a huge surprise as the house gets a lot of window condensation in the winter (despite recent doubleglazing, tho maybe this just helps to trap the warm air).
but specific to my query on the loft
1) no pipework up there as have a mains pressure hw tank and mains pressure cw throughout
2) both upstairs ensuites have a small number (3) of downlighters (the large bulb variety)
3) i had pulled back the loft insulation a little from the soffit area the other year, as they seemed to be blocking it
4) i checked last night that the fans were connected to some kind of ducting in the loft - they are, but not very securely
On the latter point, i can't imagine a lot of moisture would escape given the ducting is not taped directly to the extractor fan, although it is a reasonably snug fit.
However, i do wonder if it matters that the length of the ducting runs all the way from the extractors (which are just about equidistant from the front/back sides of the house). This must be some 15 feet of ducting before reaching the soffits.
Am yet to check that soffit end of the ducting is actually ejecting the warm air to the outside and not just some far corner of the loft!
But this all said and done, as mentioned, i know the house carries a lot of moisture due to having the wipe down the windows every morning in the winter, despite them being decent double glazing. So this moisture naturally is finding its way in to the loft also.
Grateful for any further tips. Washing is dried outside or using a tumble dryer in the garage. Cooking is done with the extractor on, but we do have 3 small children and they generate a lot of dampness i can tell you!
One last point, the entire house has been painted with that paint that can be wiped down (from pen, crayon, etc). This is water resistant right so does that increase the likelihood moisture will cling to the windows / go to the loft??
m.c.
