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Everything posted by markc
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Timberlok vs Coach Screws. is there a difference?
markc replied to Thorfun's topic in General Joinery
As a balustrade the loads are relatively low UNTIL someone runs or falls into it, with the channel fixed flat into a hard surface the bottom corner of the channel becomes the point of rotation and the fixings are in tension. if spacers are placed under the channel the point of rotation becomes the edge of the spacer and localised around the fixing, this changes the fixing load to more bending moment than tension and the calcs become much more complicated. also if spacers are used, the channel is subjected to localised stress around the spacer and could tear out when an increased load is applied. much better and safer to fix the channel hard down with full contact on a solid surface. -
Spider platform, low ground weight, usually crawler tracks, stabiliser legs and good outreach, fly jib and cage rotate can get you most places, failing that a bigger spider platform or crane with a man basket hanging on the hook to get up and over most things, or get someone in who is used to working on roof ladders for the really awkward bits.
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Heat loss assessment, David vs Goliath
markc replied to HughF's topic in Energy Efficient & Sustainable Design Concepts
Interesting read… -
Short cycling of a gas boiler can make a massive difference, I tried turning my CH water temp down to 60 degrees and gas consumption rocket due to short cycling. My boiler is purposely over sized as I spend more time away from home than in it and even then I prefer the house at 16-18 degrees and around 14 overnight or when I’m not in it. Interestingly I have paid £150 per month (gas and electric) for the last 7 years and it always works out about right over the year. Old solid walled railway house with a half decent extension (before I got it) double glazing (average) but good loft insulation.
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Put energy prices up (which I agree with) public outcry for price caps and hand outs. increased costs for businesses, transport, food, clothes etc. - more public outcry and handouts. cut the population - massive reduction in CO2, energy use, waste and no housing crisis …. But who’s going to do what is really necessary?
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+1 to mounted on the outside, the oak frame will shrink and move so any glazing or frames in between need to allow for a fair amount of movement. i once saw glass sat in deep channels in an oak frame with gaskets that allowed movement but it looked bulky and ugly
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Good morning and welcome, lots of us about
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You need to determine which of the browns is live, with light off test each against neutral or earth .. with a meter or tester, not by shorting! As Joe says, it should be bottom one but not necessarily
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If there is a big bang and all the lights go out - something isn’t right 😉
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Damp internal wall (at right angles to exterior walls)
markc replied to tvrulesme's topic in Damp & DPCs
This is so strange, cold/damp patches and lines are often cold water or gas pipes buried in the plaster, sometimes old conduits that go through to the outside but I can’t think of any reason for the multi ‘layer’ patches. -
Damp internal wall (at right angles to exterior walls)
markc replied to tvrulesme's topic in Damp & DPCs
Is the internal wall masonry or stud? And is it damp around the light switch or is that just shadow. -
sense check twin beam calculations
markc replied to johnhenstock83's topic in RSJs, Lintels & Steelwork
203x133 is a pretty stable section so web restraints not required, when you get tall narrow sections the top flange wants to roll over so fixing the twin beams together is required -
The correct way to exit the property with 110mm waste?
markc replied to Rlove90's topic in Waste & Sewerage
@Rlove90 dig the hole and clean around the pipe and inside the wall opening, brush/rinse away any mud and dust. Assuming the hole isn’t huge, a can of foam will fill the voids and seal against the wall and pipe. Will be interesting to see what the ground is like and if drainage can be improved to take water away from the wall - ground level above inside floor level is often problematic -
The correct way to exit the property with 110mm waste?
markc replied to Rlove90's topic in Waste & Sewerage
If the water is coming in through the wall penetration you really need to dig out on outside to get access around the pipe, clear out all the mud and insulation then seal up around the pipe to prevent water getting into the wall -
@RobertW have you identified the frame drain holes? The bottom of the frame should have some, just thinking if any water getting into the lower frame has no means of escape (usually into the cill) then it could find its way out at the end of the mitres - effectively inside the building.
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Good afternoon and welcome Dave (educated guess).
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+1 for frameless, glass bonded directly into slit openings look very neat.
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@oliwoodings I assumed the slate went under the frame and the frame would (should) have been drilled on the front face to drain. also the slate appears to slope towards the door instead of away but this may just be an optical illusion.
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The damp patch certainly appears to line up with the lower step/plinth. Do you have any pics before the door went in? What is the wall build up?
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Joints are the key, whether that is board to board, board to block etc. and especially corners. tanking paint and sealing tape work very well as the elasticity copes with and movement. And yes, getting the backing right is to prevent problems if - when the grout fails. It’s very easy to install a shower and do a bit of tiling but rotten plasterboard, wall studs and flooring is very common when water gets behind the tiles.
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Nothing wrong with tiling onto blockwork but you have surface mounted pipes the tiles need to go over? Are these going to be boxed?
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Good Morning, not toning 🙈
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Replace electric shower with bath and shower
markc replied to Lifesigns's topic in Bathrooms, Ensuites & Wetrooms
Electric shower with a hot tank? Odd arrangement. Is the tap water pressure ok or quite low? As long as you have sufficient water flow coming in and a big enough combi to give you enough hot water for the shower then no problem losing the shower tank. If pressure is low but incoming flow rate is ok then a shower pump would sort the low pressure. -
L shaped shower screen. Support
markc replied to Malcolm Paradise's topic in Bathrooms, Ensuites & Wetrooms
In this case I would bond (glue) the glass into the frame, take the glass out, thoroughly clean the glass and frame with a solvent cleaner, masking tape on the glass and frame where you don’t want the sticky stuff to go. Think I would use black OB1, CT1 or windscreen bond.
