Hi All
Im looking for some help or suggestions. We live in a house that is the end of a block of four. The entire block has a flat roof. There are two internal drains in the block, one at each end, each serving two properties. The drains are by an upstand wall with coping stones on top
Soon after buying the house we found a damp patch developing in the bathroom. Eventually we had the roof surface replaced (the new surface was a pvc membrane). Later the damp patch has returned. I have been on the roof, along with a relative (who is in the double glazing game and has done a bit of roofing). He put some more silicon along where the roof material is into the upstand. I have also been up and put a sheet of plastic over a skylight that is alongside the drain (incase it was coming in through the skylight.
We have take part of the bathroom ceiling down and can see that the water appears to be coming though where the drainpipe comes through the roof. This does not mean that this is where the water is actually coming in from, just where we are seeing it. When the roof was re-covered the contractor put the new surface over the plastic fitting on top of the drain and made a tube of material that went down the top of the drain. Theoretically this should have stopped the water coming in in that location.
Does anyone have any further suggestions that we can check or try? I have made an initial enquiry to a specialist damp / leakage tracing company and they gave me an estimate of £400 to do a survey.
Im looking for some help or suggestions. We live in a house that is the end of a block of four. The entire block has a flat roof. There are two internal drains in the block, one at each end, each serving two properties. The drains are by an upstand wall with coping stones on top
Soon after buying the house we found a damp patch developing in the bathroom. Eventually we had the roof surface replaced (the new surface was a pvc membrane). Later the damp patch has returned. I have been on the roof, along with a relative (who is in the double glazing game and has done a bit of roofing). He put some more silicon along where the roof material is into the upstand. I have also been up and put a sheet of plastic over a skylight that is alongside the drain (incase it was coming in through the skylight.
We have take part of the bathroom ceiling down and can see that the water appears to be coming though where the drainpipe comes through the roof. This does not mean that this is where the water is actually coming in from, just where we are seeing it. When the roof was re-covered the contractor put the new surface over the plastic fitting on top of the drain and made a tube of material that went down the top of the drain. Theoretically this should have stopped the water coming in in that location.
Does anyone have any further suggestions that we can check or try? I have made an initial enquiry to a specialist damp / leakage tracing company and they gave me an estimate of £400 to do a survey.
