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#1
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sill plate attachment on old construction?
How were sill plates attached to concrete foundations in older (60 years in this case) construction? I'm just tearing into a 12' rotted-out section of exterior wall in the workshop and the sill plate is completely shot - but I'm not seeing any signs of how the plate's anchored to the concrete; no J-bolts or wedges. I'm not seeing evidence of wire ties either, although I suppose they might have disintegrated. Maybe it'll become obvious once I tear the rotted plate out (and hopefully the answer isn't "nothing" ;-) but I probably won't get to that until later today once I've got the structure well supported. I'll put wedges in when I shoe-horn a new plate in... cheers Jules |
#2
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sill plate attachment on old construction?
"Jules Richardson" wrote in message
... How were sill plates attached to concrete foundations in older (60 years in this case) construction? For Americans, this should probably be documented in National Bureau of Standards work of the 1920s. Building research was one of the NBS's main interests in its early years. Besides, some professors of construction engineering know this sort of thing off-hand. -- Don Phillipson Carlsbad Springs (Ottawa, Canada) |
#3
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sill plate attachment on old construction?
On Thu, 28 Jun 2012 14:21:41 +0000 (UTC), Jules Richardson
wrote: How were sill plates attached to concrete foundations in older (60 years in this case) construction? I'm just tearing into a 12' rotted-out section of exterior wall in the workshop and the sill plate is completely shot - but I'm not seeing any signs of how the plate's anchored to the concrete; no J-bolts or wedges. I'm not seeing evidence of wire ties either, although I suppose they might have disintegrated. Maybe it'll become obvious once I tear the rotted plate out (and hopefully the answer isn't "nothing" ;-) but I probably won't get to that until later today once I've got the structure well supported. I'll put wedges in when I shoe-horn a new plate in... It's probably attached using gravity (a lot of it). I've replaced sills without any ties. |
#4
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sill plate attachment on old construction?
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#5
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sill plate attachment on old construction?
On 6/28/2012 1:02 PM, Jules Richardson wrote:
On Thu, 28 Jun 2012 13:32:28 -0400, zzzzzzzzzz wrote: On Thu, 28 Jun 2012 14:21:41 +0000 (UTC), Jules Richardson wrote: How were sill plates attached to concrete foundations in older (60 years in this case) construction? I'm just tearing into a 12' rotted-out section of exterior wall in the workshop and the sill plate is completely shot - but I'm not seeing any signs of how the plate's anchored to the concrete; ... It's probably attached using gravity (a lot of it). I've replaced sills without any ties. Well, having now shored* things up, I cut back a little farther and found a bolt at 14' - I'm not sure what 'best practice' is for these kinds of things, but that seems like a lot (although still better than the 'no ties' scenario that you mention!) .... The house and barn here (ca 1915) have bolt at corner and roughly 10-12 ft iirc (it's been a while since I paid any attention and I didn't go out and measure since it's currently 106F and climbing ). Replaced sill plate on one corner and end of the barn during the restore/reroof; area along the drains in the corner that held the old milking parlor were pretty well gone up a foot or more of studs excepting corner...it had settled an inch or so so raised it all back up to original height and scabbed in under back to solid material... I don't know what current Code would call for--that will depend on region and whether there's hurricane/earthquake/tornado/other extreme conditions accounted for. We get a tremendous amount of straight wind and the surface area of the barn walls makes for a lot of force and it's been adequate for nearly 100 yr at that... -- |
#6
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sill plate attachment on old construction?
On Jun 28, 7:21*am, Jules Richardson
wrote: How were sill plates attached to concrete foundations in older (60 years in this case) construction? I'm just tearing into a 12' rotted-out section of exterior wall in the workshop and the sill plate is completely shot - but I'm not seeing any signs of how the plate's anchored to the concrete; no J-bolts or wedges. I'm not seeing evidence of wire ties either, although I suppose they might have disintegrated. Maybe it'll become obvious once I tear the rotted plate out (and hopefully the answer isn't "nothing" ;-) but I probably won't get to that until later today once I've got the structure well supported. I'll put wedges in when I shoe-horn a new plate in... cheers Jules 60 years ago for a shop? Probably nothing. Probably wasn't built to what passed for code in the 40s and was never inspected. May not even have got on on the tax rolls. Harry K |
#8
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sill plate attachment on old construction?
On Jun 28, 7:21*am, Jules Richardson
wrote: How were sill plates attached to concrete foundations in older (60 years in this case) construction? I'm just tearing into a 12' rotted-out section of exterior wall in the workshop and the sill plate is completely shot - but I'm not seeing any signs of how the plate's anchored to the concrete; no J-bolts or wedges. I'm not seeing evidence of wire ties either, although I suppose they might have disintegrated. Maybe it'll become obvious once I tear the rotted plate out (and hopefully the answer isn't "nothing" ;-) but I probably won't get to that until later today once I've got the structure well supported. I'll put wedges in when I shoe-horn a new plate in... cheers Jules Sometimes no connection, just the sill placed against wet mud. Maybe some 16d or 20d nails every once in while pressed into the wet mud. Where is the structure located? SIngle story? A passable bolting would be 1/2" or 5/8" anchors at 6' o/c and with 12" of ends of sill. More than enough for a "shop" or garage. In your case sounds like about 3 anchors. cheers Bob |
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