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Floorist

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Stole this pic from another forum. And they wonder why the ceramic above this is failing. How could this even pass inspection?

floor joists.jpg
 
Those are 2x4s. I actually just saw this exact setup a few months back. The customer wanted me to install hardwood and I told him not without AT LEAST another layer of plywood over the top and reinforcing the floor from underneath.
 
I'm going to guess it's 1 1/8 or 1 1/4 inch T&G plywood. For a while 1 1/4" T&G was OK on 4 ft centers. Floors always sagged in the middle. I don't recall the floors having excessive bounce............ then again, I don't recall what I did on Wednesday either. :D
 
I'm going to guess it's 1 1/8 or 1 1/4 inch T&G plywood. For a while 1 1/4" T&G was OK on 4 ft centers. Floors always sagged in the middle. I don't recall the floors having excessive bounce............ then again, I don't recall what I did on Wednesday either. :D

I'm going to prescribe you some Cannibis Indica, I hear it helps memory loss. :)

Cannabis.jpg
 
I see nothing wrong with this, engineered floor joint , prolly 2 layers if plywood running perpendicular with each other , probably cause there clear spanning greater distance the conventional framing can do, even if you use the L/ 360 deflection rating
 
Sorry engineered floor truss system. I think that's what you guys are talking about
 
I see nothing wrong with this, engineered floor joint , prolly 2 layers if plywood running perpendicular with each other , probably cause there clear spanning greater distance the conventional framing can do, even if you use the L/ 360 deflection rating

I never even see a roofing truss built like that thing and roofs hardly have any load on them.
 
Put a couple of feet of wet snow on them ,and you will have plenty of load E.
We have commercial roofs that collapse around here .
 
Ernesto said:
I never even see a roofing truss built like that thing and roofs hardly have any load on them.

Based on the lack of insulation up top I'd say we're not looking through a crawl space at the under side of a floor but looking in an attic at a flat roof truss. The copper line looks like a refrigerant line for an AC. Most likely this house is in the sun belt where a flat roof can often be covered with foam. Much lighter than a cement tile roof by far.
 

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