Hi, I'm building a single skin brick garage in my garden, I've dug the trenches for the footings only 500mm deep as I didn't need building regs due to the fact it's only gonna be 28 sq/metres, now, if I'd of followed the councils guidelines/ building regs of 800mm it would of been alot more work. Is 500mm deep enough for a single skin wall, it's quite chalky soil with a bit of clay.
Cheers for any advice
Andy

 

yes thats ok as long as you use a decent grade of concrete for the footings !!

 

4:1 ballast and cement ok?

 

I would advise you NOT to use a single skin for the foundations. Be better with a footing block OR normal 215x450x100mm breeze layed flat. A single skin isnt strong enough.

Yes 4:1 is fine, and it wants to be at least 175mm deep and 450mm wide.

 

would have been Much better on a raft tho

 

what's a raft? Got a bricky coming to quote on Monday, How much approx do you reckon he'll charge to supply bricks and lintell and build the walls for a 5mx5.5m garage (ith 1x 1 1/2 size door and 1 side door supplied by me), and approx how much extra for a double skin? I know you'd have too see it normally but just an idea of Ł will do. Cheers for the advice so far, really appreciate it.
Andy

 

For one that size including bricks and a lintel, id say around 2.5k single skin. If less then result

A raft is where instead of digginf footings, you lay the actual base(floor) first, but the edges where the brickwork sits are thickened up. The floor should be 150mm, and the edges 200mm. Saves on digging too! Too late now tho lol!

 

oh i wouldnt bother double skinning a garage. Just the founds!

 

Can I waterproof the external brickwork and put 2" batton inside, then attach plasterboard to it on a single skin?

 

Yes. If you fix a layer of dpm(damp proof membrane) like Visqueen(thick polythene) then batten clad over that, then plaster board it will be ok. I just painted inside of mine with sandtex fook plastering lol

 

what's Sandtex, is it better than the above idea on a single skin wall?

 

Its just outdoor paint mate. Made it nice and bright in the garage, and is waterproof to a certain extent. That on, floor painted etc makes it all bright and dry.

Why would you want to plaster out the garage ????

 

I just want it to be really clean and bright inside, I may use Sandtex then.