Hi I hope someone can help. I have just pulled up the carpets in prep for decorating and laying laminate floor and found the concrete around the patio door to be failing. Having removed the lose concrete i find i have a hole through the DPC beneath which is loose sand.
Recently i had uPVC patio doors fitted to replace previous aluminuim doors on a wood frame. The doors were susceptible to condensation which began to rot the wood frame.
I can see that there is a bitumous DPC on the concrete slab and beneath the patio doors. I have read other strings on the forums about bridging the gap with cavity closures, of making a trough with the DPM and then screeding over the top. However i wondered if there was a fix without the need for removing the patio doors. Would it be possible to fill the gap with concrete with a DPM, i imagine that is what was there before, having emptied out a bucked of broken bricks and mortar.
The house is 1980s. I have uploaed three pictures (in my album) which should give an indication of the problem. Although the concrete floor continues up to the patio door at one end i can see from inspection that the hole beneth this continues most of the length of the door.
Recently i had uPVC patio doors fitted to replace previous aluminuim doors on a wood frame. The doors were susceptible to condensation which began to rot the wood frame.
I can see that there is a bitumous DPC on the concrete slab and beneath the patio doors. I have read other strings on the forums about bridging the gap with cavity closures, of making a trough with the DPM and then screeding over the top. However i wondered if there was a fix without the need for removing the patio doors. Would it be possible to fill the gap with concrete with a DPM, i imagine that is what was there before, having emptied out a bucked of broken bricks and mortar.
The house is 1980s. I have uploaed three pictures (in my album) which should give an indication of the problem. Although the concrete floor continues up to the patio door at one end i can see from inspection that the hole beneth this continues most of the length of the door.
