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I am putting in a new foundation to extend a wall. I have cut away a section of the slab to cast this. The slab is only around 4-6" thick and this is laid on flint which is about 12" thick. There appears to be no DPC bu i guess the moisture can not rise throught the flint. The questions is, how...

Having taken up some of my carpets, the whole ground floor of my bungalow is tiles in what i suspect may be asbestos vinyl tiles. Alot of these are loose and come up very easliy. The floor screed underneath is black with what looks like a bitumeny type material. Could this be the damp proof...

I am in southampton (south central) so have taken the outside temperature to be -1 deg and then used the relevant required temperature for each room eg 18deg for bedroom 21deg for lounge etc. eg temp difference acros rooms fo 19 and 22 deg respectively. Does this not take account of anny...

OBviously alot of joists are notched to level them up. Are there any rules on how much of a beam can be notched out? If 20mm is ok is 30? 40?, 50? where do you draw the line?

I have calculated the U value for the floor as a whole and it comes to almost exactly the same as the sum of the individual areas i have works out. If i have used excessively high U values, how come my calcs come to 17kw, including the ventilation and floor losses, the same as the boiler...

Thanks for that I have just run that boiler size calculator and come out with the following figures The WINDOW heat loss is 2.62 kW The WALL heat loss is 2.41 kW The ROOF heat loss is 10.92 kW + water 3 KW Total 18.95KW. This isnt too dissimilar to my own calculations Why does...

I am trying to calculate the size of radiator required for each room so that i can size a new boiler. we are renovating a bungalow and extending it so the existing system will virtually all go. Below is an example of the calculation i have done for one room. Does this look right? I am a little...

You are right, the joists hang lower than the steel and the top o ge joists is half way up he web. Hat sketch would work but I can't fit a timber on the top or get to the other side of the steel. Will notchin out the beam be detrimental as from memory from my engineering days e maximum bending...

I need to fit some joists that will be supported on a wall at one end but on an RSJ at the other. The bottom of the steel is about 100mm higher than the wall so the joist can sit on top of the steel and if it is nottched into the web then only the top 100mm of the joist will be supported. Is...

What sort of potato, Maris piper ok? Genius

I need to take a radiator off the wall as it is in the way of a new wall. The pipes are fed from the loft space down the wall. Is there away i can cap the 2 pipes in the loft without having to draing down the whole system to do it? I will eventually be replacing the whole central heating system...

I was reading on a stair manufacturers website who said they don't use mdf like cheaper manufacturers. Can split near edges especially nosing. They use engineered pine but not sure if I can buy that

I have read that it is not a good idea to use MDF for stair treads as it can split etc when nailed eg when carpet fitters fit gripper rods. What is the best material to use and how thick? It will not be seen as it will be carpeted after. Similarly, what should i use for the risers? The...

Expensive first price, yes. Tell them what you can get it for and they usually beat it.

Any ideas on builders sand in southampton It was bought from Jewsons and dont know whether you class them as a good builders merchants or just a big builders merchant

Thanks You mention that builders sand is finer than sharp sand. You also mention that plasteres sand is finer than sharp sand, but what is ther difference between plasterers sand and builders sand? Can i use builders sand for atleast the scratch coat?

Having built my last staircase from a flat pack ordered on line, i would like to try my hand at building from scratch, especially as i would like the stingers and balustrades to be oak rather than basci cheap pine. I want to build a U shape staircase with half landing. This is effectively 2...

just logged on myself to see if i can find any detailed drawings for a staircase to build mydself. If it is of any help, i bought a double winder staircase for my last house at stairplan.co.uk. Simply choose the shape/style and enter the height and they deliver. It was delievered flat packed...

For everyone elses information, i have looked in British Gypsums White Book and it does detail timber stud partitions which i didnt realise. Like for like construction methods, metal stud partitions are better acoustically than timber. So metal it is.[/url]

What is the benefit of plastering sand over normal builders sand. Is it simply the texture? As the stop beads are around 15mm wide, i guess i have to render in 2 coats? Can i use builders sand for the first coat with waterproofer and then do the thin top coat with plasteres sand? I ask because i...