Unbelievable

[Floorist]

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

 

[Nick]

What the --------------

 

[Floorist]

Aren't those joists run flat or is it my eyes?

 

[Ken]

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.

 

[highup]

I was hoping that was a wall and the image turned the wrong direction.

 

[ernie]

Is that the roof?

 

[Nick]

Aren't those joists run flat or is it my eyes?

flat, not your eyes . What a mommaluke .

 

[Floorist]

And they wondered why the ceramic on that floor cracked.

 

[highup]

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.

 

[Ernesto]

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.

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

 

[eric248]

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

 

[eric248]

Sorry engineered floor truss system. I think that's what you guys are talking about

 

[Nick]

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

It does , But i keep forgetting to order it .

 

[highup]

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

I think that stuff makes you not care about having memory loss.

 

[Ernesto]

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.

 

[Floorist]

No way ceramic works on that floor.

 

[Nick]

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 .

 

[FloorMaven]

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.

 

[Ernesto]

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 .

Snow?

 

[Nick]

Yep . We get some real heavy snow here at times .