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Hi could I have some help please. Just discovered a section of our hall wall about 1 meter by 1 meter from skirting board up and from the door frame across has the plaster blown. So it's quite a large section of wall. Door was fitted a year ago. the wall is at 90 degrees to the frame if that...

Thanks I can't feel anything escaping around the ducting when fan is running and getting the condensation even if this bathroom not used. Could the ducting just be leaking water vapour from rising warm air or would that mostly be the uncovered downlights? This time of year at night before...

Hi all originally put long rambling post in building forum and realized that's wrong place. Early 70's 4 bed detached with black bitumen felt under tiles and no ventilation. Never been prob before but we had bathroom renovation in summer (horrendous) with downlights and fan in loft ducting...

Thanks I can't feel any air leakage at the fan with it running however ducting is the type with insulation in it. Inner foil has holes then insulation then outer foil. Concerned this is leaking vapour even though I can't feel it. Manufacturer says it's fine for bathroom use but have my doubts...

Hi all Last weekend (Sunday) we had a frost. Wnet in the loft that morning and found the tiling underfelt (early 70's house, so bitumen based and not breathable) wet with small drops of moisture on the underfelt across the north facing slope of the roof - the coldest surface. This is a...

Thanks for your time on this today guys, much appreciated. I'll try and sleep soundly!

Thanks for that Footprints, so you have same set up with mains cold and tank fed warm on a mixer like mine and no issues?

Footprints, thanks. Just to confirm the set up with the Roper Rhodes Storm basin mixer is that its not bi-flow, so the hot and cold will mix in the tap. Also we have a bath mixer albeit that has two separate levers, but again the water will mix in the tap. No bi-flow and no check valves, cold...

Thanks Denso13. Tap is a Roper Rhodes Storm. Yes, the cold is mains fed, so the pressures of both are different, which I believe to be not good practice. Hot comes out fine at the moment although you do have to push the lever over further for it. I'm just worried that given the cold pressure...

Just a bit worried about how mixer taps have been installed by plumber in bathroom refurb. How would I know if I have a back-flow problem? My understanding from reading some other posts is that this would cause cold water to get into the hot system, to the hot water cylinder and thence from...

Thanks - that was my concern re short length of wall with a lot of chases close together. Its not supported at the top as its just an internal partition wall, and is effectively the short length on a 'L' shape if that makes sense. The long wall dividing the bathroom and bedroom is the long...

When we had our bathroom remodelled one wall about a metre wide had more channels taken out of it. Internal non supporting wall built with thermalite blocks. It already had on the bathroom side chanelling out for a shaver socket (socket now removed) and on the other side a bedroom light...

Thanks but never had probs with cracks before. Checking last night the crack in the gable end above said bathroom extends through the mortar joints up to the roofline and there's movement in the blocks/section of wall to the right of it which is really worrying. When the wall was chased for...

After having our bathroom refurbished, which involved: a) knocking off all tiles and render back to blockwork on internal non-supporting walls, as they found they couldn't fit in the bath! b) kocking out some of the blockwork on an external wall beneath a window for burying pipes for wall hung...

OK thanks so a basic AAV added in line should work. Without major pipework alterations, given the way the shallow P trap has been installed, I believe plumber will have to cut the waste under the bath (it runs under the bath length for a time) and insert the AAV into the waste run. I can't get...

Apologies. :oops:

Recently had bathroom renovation by the pros. Involved moving bath to other end of room. Plumber has used one of those shallow seal traps and no room under bath for deeper seal. Waste goes to stack so this isn't right. Basin waste also tees into it. Bath trap now getting siphoned. Need...

Had some work done with our patio this year to try and prevent flooding. This included laying a land drain in front of the patio in a lined trench. at the end of the patio this then goes beneath it and joins onto a new plastic gully at the foot of gutter downpipe. The installer removed the...

Sorry Tony - a bit hard to tell. I'm assuming the joists would have to span from one supporting wall to another on the ceiling. In this case I'm assuming its the length of my kitchen, about 5 metres. The bathroom is above part of the end of the kitchen and has a couple of internal thermal...

Point where bath waste goes under floor and then through joists to get to soil stack in bottom left corner of room.