I recently had external insulation fitted to the walls outside the house. This is a foam type with synthetic render. The width of the external insulation is 100mm. This was done for free by the government in my area.
It is a timber framed house built in 1960's. Everything else has been done by myself here.
Before the external insulation there was an air gap at the end of the ceiling joists. Now because the outer walls are touching the fascia board, there is no ventilation in the loft.
I recently removed a cold water storage and installed a unvented cylinder in the loft. So should be less humidity now.
So two things on my mind. Most importantly, since there seems to be no ventilation in the loft, am I likely to get damp problems there? If so, what things can I do to fix this if it happens?
Also, although the loft is not a technically a living area, I find I am spending a lot of time there, having a loft ladder folded down half the time. So I don't expect it to be as warm as the house, but don't want it too cold up there if that can be avoided.
My current loft insulation is about 100mm thick. I know it not much by modern standards, but until I add more flooring, I need to be able to see the joists. Anyway. I have a few rolls of insulation, so thinking of stapling it with string to the roof rafters.
Is adding insulation to roof rafters a good idea or bad in this case? I've read mixed opinions about this. There is a layers of felt under the tiles.
There is a ventilated fireplate around the stainless steel double flue that goes through the ceiling. So that does offer some ventilation to the loft.
It is a timber framed house built in 1960's. Everything else has been done by myself here.
Before the external insulation there was an air gap at the end of the ceiling joists. Now because the outer walls are touching the fascia board, there is no ventilation in the loft.
I recently removed a cold water storage and installed a unvented cylinder in the loft. So should be less humidity now.
So two things on my mind. Most importantly, since there seems to be no ventilation in the loft, am I likely to get damp problems there? If so, what things can I do to fix this if it happens?
Also, although the loft is not a technically a living area, I find I am spending a lot of time there, having a loft ladder folded down half the time. So I don't expect it to be as warm as the house, but don't want it too cold up there if that can be avoided.
My current loft insulation is about 100mm thick. I know it not much by modern standards, but until I add more flooring, I need to be able to see the joists. Anyway. I have a few rolls of insulation, so thinking of stapling it with string to the roof rafters.
Is adding insulation to roof rafters a good idea or bad in this case? I've read mixed opinions about this. There is a layers of felt under the tiles.
There is a ventilated fireplate around the stainless steel double flue that goes through the ceiling. So that does offer some ventilation to the loft.
