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Hi all, I am working on my extension (flat warm deck roof) and need to run some plumbing through. According to building regs where I can drill my joists falls half way through my sky line (I have to drill through 2 sets of sistered joists with 2 28mm holes (or there abouts as taking through 22mm...

Hey All, Just bought myself a 1st fix nailer as I have a few stud walls to make for my extension, just wondering what size nails to use in it for making them up. I was thinking 65mm but should it be 75mm? Cheers Mark

The Rockwell sound roofing is that the 600 wide lot? Do you just trim the extra off and put it in another? Or do they do a 400 wide?

Can then wedge out the sound proofing in that thickness

They are not long walls. Typically 1400mm long one is maybe 1500. They are 3m high. I am looking at 75x45mm now and seems a decent size but may go up to the 4x2 CLS I know they are only 89x38 but I think that would be enough.

Thanks robin

Yeah i think that's best. Just trying to get an idea on costs really Cheers for all the help guys

I just meant I am plastering on to flat roof joists that's all

Looked at prices and for 75mm x 47mm carcussing timber 3m length it works out about £1 more expensive per length and the is C24 graded as well. So I think I will go with that. With sound insulation do you just put in 50mm thickness. as the density of the material is what limits the sound so...

Hmm I was going to use CLS as it seems that is what is available everywhere. I will give a couple of local timber yards a call and see what they are have. I thought CLS was the norm now. Cheers Mark

Had a dig about on my councils website and found a pdf that had some info https://drive.google.com/file/d/0B6NQZpUoehq6Vkl2QWM2amJOSGM/view?usp=drivesdk Basically I think 3x2 are fine as long as 450 centers but I will go 400 as insulation etc is easier at the size. I was originally going for...

Hi All, Starting our house extension soon and although builders are coming in to build it to water tight I will be doing everything else. I was looking through our drawings and noticed a note that stud walls are to be 4x2 with 400 centres with 12.5mm plasterboard. However, I was going to use...

Ah ok so at the end of the process you still get the cert as normal.

Hi robin, why would you suggest that?

Hey All, So finally almost finished my plans for our side/rear extension and after we submit them and hopefully get approval I will be needing a building reg drawings and a calculation for an RSJ (2 meter opening too join the old to new). Just wondering if there are any structural engineers on...

Hey DTR, I may have to try and give the penetrating oil a go and heating it then and see if I get any success

Hey all, So, I cut a slot in the bolt with a dremel. However I did not have a wide enough flat head screw drive so I just put the flat head screw driver in one of the groves and hit it with the hammer. However, it just will not budge at all. I have some bolt extractor bits coming so I am hoping...

hey all, Ok I will give it a go tonight by cutting a slot into the top. hopefully i can get it to shift. Cheers Mark

Only offline as I'm heading home from work. If I look at the there is an arrow on the case that shows the blade spins anti clockwise also on another forum someone confirmed it is LH thread. Cheers Mark

Hi Distinterior, The blade spins in a counter clockwise direction and I assume it spins in the direction the bolt tightens to avoid it becoming loose over time. That would be a LH threaded bolt wouldn't it? Cheers Mark