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    Drainage layout advice

    Hi, can anyone advise if the layout shown in the drawing and photo is likely to be ok? I’m in the process or replacing the drains in advance of new patio. When I dug it out I discovered a combination of 45deg bend and 90deg junction just before the run into the sewer under our extension,with no...
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    Connecting drain to closed boss on bottle gully

    Hi, I’d like to use a bottle gully which currently takes the output from a roof downspout to take the output from a perforated pipe drain I plan to run behind a new retaining wall in the garden. The bottle gully in question has closed boss inlets (eg marley ug50). Presumably you need to solvent...
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    Subfloor prep for parquet

    Hi, I'm planning to install 500 x 70 x 20mm oak parquet (brick pattern) in a room with partial concrete and partial suspended timber subfloors (25mm WBP plywood). The old concrete has terrazzo tiles installed which are firmly in place but there is no DPM below the concrete. There is also a new...
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    Building over sewer

    Hey, I'd like some advise on building over the four sewer to the rear of our 1920s semi. The foul sewer (appears to be 150mm) runs behind our row of houses in a straight run, approx 75cm from the rear wall of the house. The sewer serves approx 10 houses further up the row. We have an existing...
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    Have these slate vents been installed correctly?

    Hey, Had a roofer around this week to point some flashing and fit some roof vents as we had some condensation under the eaves. I inspected the vents via velux windows in the loft. He seems to have broken a slate and replaced it with a section of vent tray and fitted the vent on top of...
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    Critique my insulated drylining approach

    Hi, I'd like to add some insulation to the external walls in a 1930s semi with uninsulated brick cavity. I though the best method would be to remove the existing, heavily patched, lime plaster. Assuming the walls are flat enough: 50 mm foil backed PIR Tape seams and expanding foam...
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    Replacing lime plaster

    Hi, I've stripped all the wall paper in a small spare bedroom (~2.5m square) and discovered heavily patched lime plaster (the plaster is a white colour and quite powdery). Two external walls, one internal wall and ceiling horse hair on lathes, one modern plasterboard + pink skim. The...
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