Still planning

[gwr]

Hi at the moment I have a shed that was 8x12 and I extended to 22x8 unfortunately that's feet not mtrs that was more for storage 4x2 frame 16mm spoon board cladding no insulation.The 8ft is really too narrow to be much use as a workshop that will house a p/t band saw table saw being the main machinery among the usual scms bench mounted drill etc .
My thoughts are block or timber I would like to build 24x12 but might have to put up with 10ft wide depends if Er indoors likes her crimbo surprise lol . I would build either myself if I build in block I think it would be single skin rendered would I have to build in pillars and if so how many and where? Also how would be best to insulate this and using minimum of space.
The building would be 500mm from the boundary at the back of garden that backs on to a field and 500 from my neighbour so to comply with regulations the roof needs to be non combustible I believe so what would be suitable for a flat roof ?
All advice welcomed. Thanks

 

[colinc]

Hi,

I am having a struggle to make decisions about my new workshop - too many choices.

You mentioned a non-combustible flat roof. Various local authorities have published policy documents detailing what they regard as matching the definition of non-combustible. Generally, from what I have read, that seems to be tiles on timber joists, steel or fibrous cement sheets on metal purlins or hot-felted roof overlaid with chippings. Butyl didn't seem to get mentioned anywhere.

Have you considered using insulated (composite) steel sheets? There are a number of places across the country that bu and sell off seconds from the likes of Kingspan and other manufacturers. They seem to sell for around £10-£15 m2 and generally work down to 5 degrees pitch. They are usually designed to span between purlins at 1800 mm crs. on industrial buildings, so you would only need a single purlin at mid span. The inside face is white paint/plastisol finish. I'm seriously thinking of using them myself. It would seem to be a good way of both roofing and insulating at the same time.

I really don't want to use brick or block for the walls of mine, and am hoping to use something like Marley Cedral on light gauge steel (stud and track) framing. Alternatively, render on cement based renderboard looks like it would be acceptable too.

regards,

Colin

 

[gwr]

Thanks for the reply Colin some food for thought there with the roofing I will have a search for seconds of the composite steel sheets.i also wonder about difference in cost block and render. V. Metal stud something else for me to ponder hmmmm.

 

[colinc]

Hi,

Stud and track is a good option for me because I work with some of the specialists who supply it and have software to model the building, detail the frames and produce CNC files for all the bits. It's a great way to get a 'flat-pack building' straight from my computer to my garden for me, but not practical for everyone.

I'd be interested to know if anyone here has any experience of Marley Cedral or any of the fibre/cement weatherboards as I need a non-combustible cladding but have never seen it used.

regards,

Colin