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i am about to put in a concrete fllor for my new conservatory. so, its hardcore, 2 in sand, insulation, 4 in concrete. the visqueen normally goes on top of the sand, but i was wondering if the celotex (like kingspan) insulation will be effected by the water when i poor concrete on it. is it...

am building an extension and need to connect up a rainwater drain to the existing rainwater piping sytem. prob is cant get much of a fall on the pipe so was planning to do away with the u bend bit that would make me sink the pipe further down and thereby further limit the angle. is this ok to...

tiles, so good finish i suppose would do away with self levelling

for my concservatory, is the following correct hardcore 4 in sand 2in insulation 4in concrete 4in self levelling compund ? in so, how much do i allow for top screed, and where is the best place for the dpm rds and thanks

super, thank you.

on the approved bld gregs for my extension is a section on manholes. it reads.. manholes to be constructed with 225mm engineering brickwork on concrete slab foundation. Concrete haunching to be provided in channels in manhole. this is pretty double dutch to me - can anyone expand/show a...

noseall - thanks - forgive my ignorance, but what is a gas membrain? also by lean, what mixture of sand/cement would youy recommend? alastairreid - thanks - but the link is borken. could u resend plse cheers

am building a conservatory with about 6 bricks above dps. below dpc is 5 bricks, 2 of which will be above ground level. now, i have brought some weephole vents, the plastic vertical ones that go between the bricks.. questio is, where below the dpc do i put them? obviously can only be in the top...

not them plugs, are the depth of a brick. weepholes might be them, house is brick. what water are they designed to let out?

on the course of brick just below the damp proof course are litttle white plastic things that sit vertically between the bricks, about every 5 bricks across. anybody know what they're called and more to the point what they do please thanks

thanks. i appreciate the filled cavity dont need to be vented but underneath the dpc and insulation - isnt that worthwhile? also does dritherm batts resist water ?

am buildin a conservatory with 6 brick dwarf wall above dpc and 3 in cavity but want to insulate the cavity. am i right that i can / should only full fill it as a partial fill requires 50mm gap? also, how low down does the insulation have to go - is it just above the dpc? also does that meen...

i want to get installed a loft ladder and a little boarding (about 6 4x1 sheets of diy boarding) plus get my hatch to drop down. a local joiner quoted me about £250 to supply and fit all but dont know if this sounds reasonable. any advice to a newbie plse? also, seem confused about whether i...