Building Regulations application

[peca27]

Believe it or not, i've managed to put together my own drawings + specification for a Building Control Application for a single storey Kitchen extension. All the drawings & design proposals are ok, but they now want the following information & i've no idea where to get it from:

- I'm going for a 14.4 degree roof pitch (it's the highest I can get) and specifed a concrete roof tile to match. But they want to know which would be suitable for that pitch.

- They want calculations for roof trusses????? and the beam + block flooring i'm going for. Where can I get that info from?????

- Calculations for steel beams (taking out a load bearing internal partition) & lintels.

The roof tile i can hopefully get info from someone like Marley's, but what's with all these calculations - where can i go for those without paying for professional fees?

Thanks for all advice in advance

 

[Static]

Roof truss calcs normally come from the truss manufacturer.
Same with beam and block flooring calcs.
Steel beam calcs normally come from a structural engineer, depends how complex the design is.

 

[suffolklad]

hi go on google and search for roof truss companys try www. dontim-eng.co.uk i used them they will work out truss sizes and give u drawing of them they were very reasonable my trusses all made and delivered were cheaper than just buying the wood for hand cut. i built my own extension finishing off inside now . as for your roof pitch i think 17 degrees is lowest for concrete tiles best bet is to find out who made the tiles on your roof and find there web site and give them a ring . sounds like you will need a flat roof felt a friend did mention about boarding then tar felting low pitched tiled roofs best to ask manufacture of tiles.my roof was 19 degrees so i had to have smooth concrete any way good luck and remember the internet is the best place to look search

 

[peca27]

I know that you can get the calcs from the manufacturers, but whose to say where the builders are gonna be getting there materials from? I would have thought that once the builder knows the spec, they're gonna go where ever they can get the cheapest deal.

I suppose my ques is where can I go to get the calculations done, without having then to order the materials from them? Is it the type of thing that they would cost alot of ££££££?

The extension is only a single storey 14m2 works with a lean to roof- I'm hoping that the roof truss, beam + block manufacturers won't charge that much will they?

 

[noseall]

does it have to be beam and block? why not build a traditional roof?

 

[masona]

I'm hoping that the roof truss, beam + block manufacturers won't charge that much will they?

I have done many type of roofs and truss frame do work out a lot cheaper and labour saving so far.

 

[noseall]

mmmm.......trusses, made from matchwood, works of art, held together with cleats, wouldn't hold a fart!

 

[Static]

As the client you should nominate the speciallist sub contractors you want to produce beam/block floor and truss roof, thus be forceful and tell them who you want.. most beam/block and truss manufacturers are more than willing to give your scheme a look over and give you an idea of what sizes/spans and overall feasability over the phone/fax (unless they arent interested in making any more money..)

 

[blainey]

Hi
I got my calculations done for £200 +vat by a structural engineer.
Al