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  1. S

    Roofing spacing for cut roof. Triple rafters and joists.

    That's a curious configuration which is pretty useless as structurally it's just a double You could theoretically add extra timber to the middle section where the bending effects are greatest. We adopt this notion of reduced strength where not needed in RC construction, glulam beams sometimes...
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    Roofing spacing for cut roof. Triple rafters and joists.

    Basic rule of thumb is to have the same total number of members going full width. You've cut 2 so add 2 ie doubles each side of the opening. If you'd cut 3 then triples 'cos you generally keep things symmetric.
  3. S

    Concrete fence posts have some deflection when pushed

    At 24 hours you'll easily fail the concrete, especially if it's a bit thin, so the isueis likely down to you I'd be inclined to notice the problem in a weeks time and get them back to rectify.
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    Testing foundations with a hammer

    No 1 sounds like the village idiot!
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    Testing foundations with a hammer

    There is in fact a technique for testing foundations with a hammer, but it relates to cast in situ piles and it's a rather speciial hammer. Depth is the only issue that really matters with conventional strip footings: they need to be deep enough to be on stable soil accounting for trees and...
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    Best Sledge Hammer for D.I.Y.?

    7lb is a good everyday weight but you'll do more good with 14 on heavy jobs. A heavy hammer moves things where a light one will tend to mushroom steel components Keep an eye on Lidl/Aldi, thats where mine came from. As Noseall composite stale.
  7. S

    Concrete slab

    That went in very wet and has bled badly. Very doubtful if any attempt was made to cure. Typical of DGAS builders I fear. The concrete will be a bit weaker than it should be because it has less cement remaining in the matrix. Nothing you can do about it now but for a shed it's not likely to be...
  8. S

    Poorly laid cavity wall insulation

    But we frequently full fill cavities!
  9. S

    Enamel for alloy wheel?

    2 and counting!
  10. S

    Would you accept this timber for large garage roof

    I'll bet the grey stuff is the best of the lot: it's got sticks between the boards indicating its been properly seasoned. C16 is perfectly fine where it's man enough for the job ( eg a 7x2 C24 won't work but 8x2 can work as C16 without needing C24) Danage is another thing entirely: I would be...
  11. S

    Poorly laid cavity wall insulation

    Friend or not it's up to him to do the job properly: I'd like to think I'd try harder for friends. I suppose the surest way would be to take down the outer skin, remove the insulation and clean back any snots of mortar (which are likey if the board was floating about). Then replace the...
  12. S

    Poorly laid cavity wall insulation

    What insulation are you using? Why are you worrying: this iis up to your builder to sort to BCO's satisfaction
  13. S

    Building a brick wall on suspended slab

    Yikes a thin slab got 30mm thinner. I think I'd be starting to get a bit concerned if t'was mine now. Does anything bear on the wall? How about building it from timber to reduce the load? Difficult to see what else might help at this point in the build. The beams I'm still not fussed about...
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    Building a brick wall on suspended slab

    Fair point, but sometimes the wheat and chaff look an awful lot alike! I'm glad the welding advice worked, but surprised they couldn't make lowH rods work: maybe something as simple as too big a rod for the machine they had. I don't recall us having any issues with the rods. I can maybe set...
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    Is there a name for this common method of coping a front garden brick wall?

    Brick on edge coping with creasing tiles. We used blue tiles on our (red brick) wall a couple of years ago with blue bricks over: that looked grand.
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    Building a brick wall on suspended slab

    You've got an SE: ask him not a bunch of random "experts on a forum in another country". It'll be his PI on the line if it fails.
  17. S

    Placing steels off-centre on a padstone

    All the beam needs to do is extend the full width of the padstone no overhang required.
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    Placing steels off-centre on a padstone

    That's another issue. It would have to be a very high load from the beam for the 100mm leaf width to be insufficient. (FWIW that's where you might need a steel spreader)
  19. S

    Tyre valve stem leak

    Racing certainty the fitter wouldn't like you!
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