How do you fix this?

[jar546]

Without tearing out the tiled shower pan above, how can you defy gravity to fix this?
Type IIA protected R2, between units. This was found by the contractor working below.

 

[classicT]

You cant....

Why does it appear the neither the shower nor the penetration behind it are protected (firestopped)? The one behind the shower looks to be original given the lack of any spalling at the corner.

 

[mark handler]

Without tearing out the tiled shower pan above, how can you defy gravity to fix this?
Type IIA protected R2, between units. This was found by the contractor working below.
View attachment 7735

You have the Engineer of record give you a fix

 

[jar546]

You have the Engineer of record give you a fix

That is exactly what was requested.

 

[jar546]

You cant....

Why does it appear the neither the shower nor the penetration behind it are protected (firestopped)? The one behind the shower looks to be original given the lack of any spalling at the corner.

A lot was let go prior to my arrival.

 

[ADAguy]

Is that A PT slab?

 

[Keystone]

Who will pay for the repair?

 

[tmurray]

Is the collar just there as a joke?

 

[Tim Mailloux]

I don't see what you couldn't repair that and fire safe it from underneath. I would start by looking at Ardex and Hilti concrete patching & repair products.

 

[jar546]

Is that A PT slab?

I believe that building is, look how thin the slab is.

 

[jar546]

Who will pay for the repair?

great question. Probably the owner above who had that work done.

 

[ADAguy]

I believe that building is, look how thin the slab is.

How long is the span?

 

[Mark K]

Note the piece of rebar extending through the opening. Unless somebody can show that the rebar is not needed the repair needs to provide concrete, or the equivalent, of a certain thickness around the reinforcement. This might mean that the shower pan needs to be located higher.

Plumbers have a reputation of providing undesirable holes in structural members.

 

[Keystone]

great question. Probably the owner above who had that work done.

Being this is a building with assumed multiple owners/tenants, I’d sooner seek out an HOA or general building owner before the owner/tenant above. If an HOA or general building owner do exist.

 

[north star]

@ ~ @

If the intent of the condition in the picture is to
replace the concrete, I am not sure that the "concrete
fix" would have the same structural strength as the
existing floor.

If someone were to ask me what I would do, I would
draw a larger sized square around the opening, and
like the existing pipe hangar, I would drill in some
stainless steel, high strength bolts and attach a
galvanized metal frame \ box to the concrete........Next,
I would seal completely the metal framing, either:
(1) by welding everything together, or (2) by bolting
everything together..........Next, I would apply a thick
layer of fire rated caulking to everything and let setup.


** Rembo **, ...do you know what the engineer actually
did ?

@ ~ @

 

[Tim Mailloux]

@ ~ @

If the intent of the condition in the picture is to
replace the concrete, I am not sure that the "concrete
fix" would have the same structural strength as the
existing floor.

@ ~ @

Some of the Ardex and Hilti concrete repair products are used to repair bridges, I don't think whats shown in the OP's image will be a problem.

 

[jar546]

Note the piece of rebar extending through the opening. Unless somebody can show that the rebar is not needed the repair needs to provide concrete, or the equivalent, of a certain thickness around the reinforcement. This might mean that the shower pan needs to be located higher.

Plumbers have a reputation of providing undesirable holes in structural members.

Excellent point

 

[Mark K]

Building inspectors apparently are focused on fire and other concerns. An engineer will be more sensitive to the structural concerns.