On my bungalow the North facing wall is constructed of irregular sandstone blocks. I have lived here for seven years and every time we have driving rain from the North we eventually get water dripping into the room from the top of the window. (where the frame meets the top of the window recess.)
I had the whole of the house repointed last year and re roofed earlier this year but the problem persists.
It takes about 3 or 4 hours of driving rain before it starts to drip, but once started it is a fairly steady stream.
Can it be possible that the sandstone blocks are so porus that they are absorbing the rainwater and eventually become saturated and leak down the cavity to the window ?
If waterproofing the stone sandstone is the answer what is the best treatment to use ?
Thanks for any advice offered.
I had the whole of the house repointed last year and re roofed earlier this year but the problem persists.
It takes about 3 or 4 hours of driving rain before it starts to drip, but once started it is a fairly steady stream.
Can it be possible that the sandstone blocks are so porus that they are absorbing the rainwater and eventually become saturated and leak down the cavity to the window ?
If waterproofing the stone sandstone is the answer what is the best treatment to use ?
Thanks for any advice offered.
