building above garage

[cpym]

hi
i own a semi with a single garage on the side but the external wall is only single brick what would have to be done to build a cavity wall above and whaT WOULD THE AUTHORITIES expect to be done and how much would i expect a builder to charge me any help would be appreiated
thanks chris

 

[noseall]

sometimes it is just as cost effective to demolish the garage and start from scratch. if you dig a pilot hole down the side of your garage foundations and expose the concrete, b.c. will tell you if the footings are adequate or not. if they are adequate, then it may be o.k. to use r.s.j's and pillars with lots of internal concrete foundations!

 

[cpym]

what do you mean by internal concrete foundations
cheers chris

 

[noseall]

if you were to build an internal leaf of blokcwork right from the ground floor upwards, to create a cavity wall, then an internal concrete foundation would be necessary to carry it. similarly if you were to do away with walls at ground level and just use horizontal steel beams to carry the cavity wall above, these r.s.j's would probably need supporting pillars of masonry, built off pretty hefty foundations.

 

[Static]

Depends what foundations are in the garage now. If its a standard slab construction then you probably wont need any additional footings. Do a trial hole next to the existing footings of the garage to determine width and depth and type of footing (ie strip or raft).

 

[Doc Lenny]

Hi

I am in the process of building above my garage. The image is a snippet from my plans, hope this helps.

http://www.ronproperty.co.uk/garage_founds.jpg

 

[cpym]

cheers thanks for yr help