The roof of my cottage isn't lined with felt.
The asphalt tiles are fixed to the roofing timbers and a sort of lime coating was applied to the back of the tiles to stop rain blowing in. I've had the place 6 years, and haven't had a problem. I got the moss and algae removed about 3 years ago and not it needs to be done again.
This year, however, I notice that the timers on the north facing pitch are quite damp. I know that old roof timbers get damp now and then and as long as there is an air flow they will dry out again.
The lime on the back of the north pitch tiles has also fallen away quite a bit, and I can see condensation on the back of several tiles. The lime on the south facing tiles is sound.
I've also discovered a leak above one of my windows, which is running down the inside of the window when rain is particularly heavy and blustery.
I'm getting the moss removed again this week.
My theory is that the absence of lime (which is allowing rain to be blown in), and the condensation, is causing the timbers to be overly damp. This isn't an issue on the south pitch, as the sunlight is preventing moss growth which in turn is allowing less rain blow in which is term is preventing lime degradation.
I'm hoping that removing the moss will allow less rain blow in, and that I will be able to apply a new cost of lime to the inside of the tiles.
Does this sound about right? I really don't want to have to get a new roof. My timbers, while damp, are not rotted, and they held up pretty well so far.
The asphalt tiles are fixed to the roofing timbers and a sort of lime coating was applied to the back of the tiles to stop rain blowing in. I've had the place 6 years, and haven't had a problem. I got the moss and algae removed about 3 years ago and not it needs to be done again.
This year, however, I notice that the timers on the north facing pitch are quite damp. I know that old roof timbers get damp now and then and as long as there is an air flow they will dry out again.
The lime on the back of the north pitch tiles has also fallen away quite a bit, and I can see condensation on the back of several tiles. The lime on the south facing tiles is sound.
I've also discovered a leak above one of my windows, which is running down the inside of the window when rain is particularly heavy and blustery.
I'm getting the moss removed again this week.
My theory is that the absence of lime (which is allowing rain to be blown in), and the condensation, is causing the timbers to be overly damp. This isn't an issue on the south pitch, as the sunlight is preventing moss growth which in turn is allowing less rain blow in which is term is preventing lime degradation.
I'm hoping that removing the moss will allow less rain blow in, and that I will be able to apply a new cost of lime to the inside of the tiles.
Does this sound about right? I really don't want to have to get a new roof. My timbers, while damp, are not rotted, and they held up pretty well so far.