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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Foundations for garage
We built our current garage a while back its a single skin breaze block rendered wall. We have Building Control for this.
We are wating to convert this to a habitable room and are going to brick the outside. Can I just lay the new foundations along side the old at the same depth Garry |
#2
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Foundations for garage
On Sep 11, 8:36*pm, Garry wrote:
We built our current garage a while back its a single skin breaze block rendered wall. We have Building Control for this. We are wating to convert this to a habitable room and are going to brick the outside. *Can I just lay the new foundations along side the old at the same depth Garry I have added an outer leaf to an existing solid wall. I dug out to the depth of the bottom of the existing footings and poured more concrete coming to above the existing footings, ie "L" shaped cross section. In some places the existing footing was quite deep so I just filled the trench up to about 200mm below the ground level. Don't forget the cavity wall insulation. Can be mineral wool bats or foam. Worth spending some time getting the insulation right. |
#3
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Foundations for garage
On Tuesday, September 11, 2012 8:36:21 PM UTC+1, Garry wrote:
We built our current garage a while back its a single skin breaze block rendered wall. We have Building Control for this. We are wating to convert this to a habitable room and are going to brick the outside. Can I just lay the new foundations along side the old at the same depth I added an new internal skin to form a cavity wall as part of an extension. However, the new foundation was deeper the the one running alongside, and the BCO wanted me to "overpour" the old foundation, so I guess the two were effectively locked together. Only a few inches overpour was required. However my new foundation was a couple of feet lower ! So it might be a good idea to do something that locks the two together. Simon. |
#4
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Foundations for garage
"Garry" wrote in message ... We built our current garage a while back its a single skin breaze block rendered wall. We have Building Control for this. We are wating to convert this to a habitable room and are going to brick the outside. Can I just lay the new foundations along side the old at the same depth Short answer - ask your BCO. Ours are generally very helpful and once you've paid the upfront charge they will come out as many times as you like to look at stuff and tell you what is O.K. by them. -- No plan survives contact with the enemy. [Not even bunny] Helmuth von Moltke the Elder (\__/) (='.'=) (")_(") |
#5
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Foundations for garage
On Wednesday, 12 September 2012 11:40:54 UTC+1, David WE Roberts wrote:
We built our current garage a while back its a single skin breaze block rendered wall. We have Building Control for this. We are wating to convert this to a habitable room and are going to brick the outside. Can I just lay the new foundations along side the old at the same depth Short answer - ask your BCO. Ours are generally very helpful and once you've paid the upfront charge they will come out as many times as you like to look at stuff and tell you what is O.K. by them. -- No plan survives contact with the enemy. [Not even bunny] Helmuth von Moltke the Elder (\__/) (='.'=) (")_(") Thanks for all the answers, I was thinking of sticking some 1/2 inch rebar into the old foundation and then pouring the concrete in to a few inches above the old concrete strip. Hopefully the rebar would look the concrete together. What do you think. Garry |
#6
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Foundations for garage
[Default] On Tue, 11 Sep 2012 12:36:21 -0700 (PDT), a certain
chimpanzee, Garry , randomly hit the keyboard and wrote: We built our current garage a while back its a single skin breaze block rendered wall. We have Building Control for this. We are wating to convert this to a habitable room and are going to brick the outside. Can I just lay the new foundations along side the old at the same depth Firstly, why do you need to? You can generally dry-line the inside with a stud wall & insulation, and unless you are altering the structure, you don't need to increase the foundations. If you don't want to dry-line the inside (maybe you need the space), then building an external leaf onto an existing wall to create a cavity wall is a difficult way to go, irrespective of the foundations. The foundations would need to be widened, usually by digging slightly below & under the the existing. This would need to be done in sections, similar to underpinning. The new outer leaf would need to be tied to the inner leaf, with ties screwed in, and insulation installed. Any door or window openings will need lintels over, which may need to be changed. How will the roof be altered? Is there enough overhang to encompass an increase of ~200mm in the wall thickness? -- Hugo Nebula "If no-one on the internet wants a piece of this, just how far from the pack have I strayed"? |
#7
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Foundations for garage
On Sep 11, 8:36*pm, Garry wrote:
We built our current garage a while back its a single skin breaze block rendered wall. We have Building Control for this. We are wating to convert this to a habitable room and are going to brick the outside. *Can I just lay the new foundations along side the old at the same depth Garry You may be better off just demolishing it and starting again. |
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