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Affixing OSB to Ceiling Joists with (brad?) Nails

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Affixing OSB to Ceiling Joists with (brad?) Nails deans@wdeans.com 10-16-2007
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Posted by on October 16, 2007, 12:11 pm
wrote:
> In this particular property the third floor is a an attic with a
> standard stairwell so people commonly use it as a bedroom. Since it
> is hot in the attic people tend to leave the windows open. The first
> good multi-day rain or torrential downpour with a cross breeze and
> enough water can blow in to ruin the ceiling below. Once there was a
> cup on the windowsill and it collected well over an inch of water
> during such a session (maybe 2). The floor is made out of 1" oak T&G
> floor boards and the water just drips straight through. If I wanted
> to fix the problem I could nail down plywood and then glue down
> linoleum so that the water didn't pass through the floor... but then I
> would be replacing linoleum instead of ceilings. In other properties
> people overflow the toilet, don't pay for more fuel oil and let the
> pipes burst, or stop up the tub with paper towels and turn it on full
> blast before they leave the house after being evicted and then claim
> vandals must have broken in and done it after they vacated. Sometimes
> there's a roof leak but normally it's a man-made disaster.

One thing right off: OSB isn't going to be any more resistant to water
than drywall. Soaks it up like a sponge in my experience.

IMHO those little wire brads are not going to cut it, no matter how
many you put up there. They're just going to pull right out the first
time your degenerate tenants leave the windows open in the attic. When
the board falls, it'll probably hit someone in the head, and you'll
end up with a lawsuit on your hands.

Plywood, 1/2" or thicker so they can't throw stuff through it, and
drywall screws are the only way to go here. You can get the screws out
and let the board down without damaging it when you need to. If you
nail it up, then you have to force a pry bar under a seam, half-
destroy the board in prying it down, and then you'll have hundreds of
little nails to bend over or pound out.

1/4" plywood will be easier to put up, but then they can throw stuff
through it. Sounds like your typical tenants are that type of people...


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Posted by John Grabowski on October 16, 2007, 3:47 pm

> > What is causing the ceiling damage? If this is a recurring thing, try
> > to get it resolved. Another option is to put an access door where the
> > problem is.
>
>
> In this particular property the third floor is a an attic with a
> standard stairwell so people commonly use it as a bedroom. Since it
> is hot in the attic people tend to leave the windows open. The first
> good multi-day rain or torrential downpour with a cross breeze and
> enough water can blow in to ruin the ceiling below. Once there was a
> cup on the windowsill and it collected well over an inch of water
> during such a session (maybe 2). The floor is made out of 1" oak T&G
> floor boards and the water just drips straight through. If I wanted
> to fix the problem I could nail down plywood and then glue down
> linoleum so that the water didn't pass through the floor... but then I
> would be replacing linoleum instead of ceilings. In other properties
> people overflow the toilet, don't pay for more fuel oil and let the
> pipes burst, or stop up the tub with paper towels and turn it on full
> blast before they leave the house after being evicted and then claim
> vandals must have broken in and done it after they vacated. Sometimes
> there's a roof leak but normally it's a man-made disaster.
>

I've seen these large oversized canvas window canopies that I think are
designed to prevent rain from entering. Maybe that will work for your
situation.


Posted by deans@wdeans.com on October 16, 2007, 12:11 pm
> John Grabowski wrote:
>
> > Does the OSB have the same fire rating as the drywall?
>
> Who cares? It's a rental.

I care. I am the property owner therefore everything is my fault.

See reply to Edwin Pawlowski above.

PS: If in a PCP-induced satanic ritual the tenants built a bonfire in
the middle of the floor and threw their babies on top the property
owner would still be the one sued ... they are the only one capable of
paying out money therefore the lawyers must find a way to make it
their fault. Sound far fetched? Vegas odds (people betting actual
money) on a 2008 pro Slave Reperation president were above 20%
recently. That means whatever mutual fund your 401K is in will be
devalued by the amount appropriate to make up for your evil doings in
the slave trade. Yes YOU!


Posted by Wayne Whitney on October 16, 2007, 11:57 am

> I have the notion that I would like to replace it with a 1/2" OSB or
> Plywood ceiling held up by brad nails.

Two comments:

(1) In some places gypsum board is required as a fire barrier. One
obvious example is the ceiling of a garage with living space above.
So you'll need to determine what the requirements are.

(2) The ceiling fasteners are loaded in withdrawal, so they really
should be screws. I wouldn't trust anything held up only by brad
nails or finish nails. Particularly if you are worred about water
damage--the water could accumulate and increase the load on the
fasteners.

Cheers, Wayne

Posted by deans@wdeans.com on October 16, 2007, 12:14 pm
>
> > I have the notion that I would like to replace it with a 1/2" OSB or
> > Plywood ceiling held up by brad nails.
>
> Two comments:
>
> (1) In some places gypsum board is required as a fire barrier. One
> obvious example is the ceiling of a garage with living space above.
> So you'll need to determine what the requirements are.
>
> (2) The ceiling fasteners are loaded in withdrawal, so they really
> should be screws. I wouldn't trust anything held up only by brad
> nails or finish nails. Particularly if you are worred about water
> damage--the water could accumulate and increase the load on the
> fasteners.
>
> Cheers, Wayne


Sounds like I might really be forced to go with screws here.


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