Replies

1. 
   Guest_ | Aug 02, 2000 05:38am | #1

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   New or existing?

   Do you want to see a gable, or a gutter from the outside?

   Which direction do the trusses run, in relation to the wall where this will happen?

   Some answers would make this easier than others, especially the answer to the first one.

   I have to ask, but are you
   i sure
   you have 18", plus the overhang for the shed/gable/gutter etc...

2. 
   Trish_Puckett | Aug 02, 2000 05:52am | #2

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   Hi, Thanks for the reply. This is a new structure with a gable over the bay, but that can change if it has to, the trusses run perpendicular to this exterior wall and yes, I can project 2' into the setback.

3. 
   Guest_ | Aug 03, 2000 06:56am | #3

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   header over the 8.5' to pick up the garage roof trusses,

   post off beam to structural ridge, cantilevered to carry the pop-out roof area,

   hang the walls of the pop out off the garage walls with clips down the channels, shear ply over pop out, with cs or ms series strapping running off top plates and down the inside of the garage wall. You could also ply the inside of the pop-out after mechanical, to strap the wall to the end of the garage wall at the opening.

   finish the outside bottom of the pop-out floor with treated ply, and the bolster the floor as needed with joist to carry the storage weight. Let the garage wall help to carry the workbench load. You could let-in a 2x8 flush to the inside of the garage wall, that spanned the 8.5' , to carry most of the bench weight.

   All ideas will be subject to the local approval process, and the beam and ridge would need to be calculated to allow for load. I'm sure someone on this board has done this with a gas fireplace chase or something? ...

1. 
   Guest_ | Aug 03, 2000 12:37pm | #4

   *Trish:I'm having a little trouble getting a mental picture here, although I understand basically what you are wanting to do. What is the floor height of the bay/bump-out to be? It seems like the real issue is that due to the setback, no foundation can be installed and due to the slab garage floor, a standard cantilever can't be tied back into the floor system. Once the situation with the floor is dealt with, the walls/roof are pretty straightforward?Nathan:Are you basically suggesting that the entire wall/floor assembly would be hung from the small gable/shed roof?

4. 
   Trish_P | Aug 03, 2000 05:58pm | #5

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   Matt,
   Ideally, I would like the garage slab to continue out level into the bay. I thought that forming a platform to continue the concrete pour and adding additional re-bar along with some extra support thru the walls and roof may do it. I'm not sure of the details

   Nathan,

   I get most of what you are saying, except 'post off beam to structural ridge, cantilevered to carry the pop out roof area'. Do not understand, sorry. I like the idea of supporting the weight of the workbench on the main structure, and the ply as support. Any more ideas?

5. 
   Trish_Puckett | Aug 05, 2000 07:43am | #6

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   Any suggestions for framing a cantilevered bay in a garage with a 3" slab floor? The building is set at the setback line and I am not allowed to place foundation wall under the bay. The projection is 18", and 8.5' wide, supporting it's own roof only, and containing a workbench with storage.

6. 
   Guest_ | Aug 05, 2000 07:43am | #7

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   Wish I had a scanner...

   Trish, do you follow that you need a header that spans the distance of the width of the bay, and in line with the garage wall?, This is to allow the garage roof trusses to land where there is no garage wall...

   The post off this header to the ridge will allow half the weight of the roof area of the pop out to be carried by the header that picks up the garage roof trusses. Trying to get the roof load into the garage wall, and not on the pop out walls because...

   The walls themselves will be carried exclusively by the attachment to the garage wall, hence the A-35's and strap. Clips at every 8" or so should be positive connection, along with 16d stagger nailing into the channel.

   Maybe you could circumvent the foundation setback with treated posts under the corners of the pop-out?

   If you need concrete on the floor, pour it onto the grade, rather than trying to hang it onto bay itself...

   Who did you pay for the plans, engineering etc...? They would be the person to talk to here.