Tin Roof Help Needed

[herfrds]

I waited 6 years for DH to build me a new chicken house. When he left on a trip I secertly hired a contractor to do it.
Well that guy really screwed it up.
The window openings were the wrong size and the windows didn't fit.
He tinned the roof.
Right now a piece of the tin is literally tearing off in this wind we are having. Once the wind stops I know I will need to replace this piece.
The guy had left a 4"-5" over hang of this tin.
Should it have been bent down over the edge of the roof and screwed in that way too?

I will post a picture later. I have enough tin and 30# felt to side the chicken house, which we plan to do this summer.

 

[ChickenToes]

We have a tin roof on our brooder coop, and my husband trimmed the tin down to a 2 inch overhang, and then bent it under the eaves.

 

[ole188]

I dont think that you would need to bend the edge over to make it secure. I would look at how and with what the tin was secured to the top of the coop. My guess is that either the wrong type of fastener was used, or not enough of them. Post a picture, I'm sure there is an easy fix.

Matt

 

[Jx2inNC]

Quote:
I agree here.
Let's see it, if possible.

 

[patandchickens]

No, you are not supposed to bend it over.

Is this overhang supported by rafter ends or purlins (nailers, strapping, whatever you want to call it) all the way virtually to the edge, or is it 4-5" of *totally unsupported* tin? If the latter, then there's yer problem. It is not difficult to fix (no you do not have to tear off the roof) but the fix depends on whether it is side or front/back overhang, so I am not going to type out directions without knowing the exact situation

If the rafters and purlins do go all the way essentially to the edge of the tin, but the roof still came off, I would betcha dollars to donuts he used nails rather than screws, and/or got some of them driven in off-the-mark so they don't really go into the wood, and/or put in too few or the wrong place. Again, if you can post a pic we can suggest a specific fix, which should not be too difficult.

Don't hire that clown again

Pat

 

[herfrds]

Here's a picture. You can see that the tin is lifted.
It is raining and snowing. Got a wind gust reading at 33mph. I will try to get better pictures after this system passes.

 

[Jx2inNC]

Is that the width of the strip of tin he put down or is that piece ripped by the wind?
It almost looks like too thin of a strip was placed down, and not securely enough at that.
Shouldn't be an issue to put a few supports with some scrap wood or something though.

 

[patandchickens]

Yup, there's yer problem, your handyman is a moron.

Of COURSE that wee little narrow edge strip, held on only by a coupla screws, ripped off. That was a dumb way to do it.

First, do you by any chance have any extra roofing. That piece will never be the same again, and if you are going to have to put a narrow strip at the edge (which at this point you *are*, unless you want a big job) it is best to have an extra overlap.

Second, he built the roof wrong... there needs to be STRUCTURE supporting the side overhang. To be honest I am not certain how to describe what you need to do - basically you need to frame out an extra overhang - although it is not too terribly difficult to DO. I am real tempted to suggest that if you are not very experienced in framing, you just get some OUTDOOR-GRADE brackets and use THOSE (screwed into studs, not just the wall osb) to support extra little pieces of 2x4 to support the roof overhang.

Thirdly, I surely hope that there is cross-blocking between those rafters, no more than 24" apart, with the roofing screwed onto THAT, rather than this genius having screwed the roofing only into the rafters with no cross-support. Check on that.

And fourthly, did he even USE roofing screws, or did he just nail? It needs to be gasketed roofing screws, they can be recognized from a distance b/c the head protrudes pretty high above the roofing material. You need that roof SCREWED not just nailed.

Moron. (Him, not you, of course!

)

Best of luck,

Pat

 

[herfrds]

That is a whole piece.

Yes I know the guy is a moron.

yes I do have more tin. Most is going to be siding on the house.
There is cross blocking inside, he at least did that right.

Yes he used roofing screws. I don't think he used enough. This area feels weird when there is no wind.

I'll get some more pictures when I go to get the kids.

 

[patandchickens]

Quote:
Oh, ok... did it rip lengthwise when it blew back, then? If so, it is going to leak somewhat unless replaced with a new piece. You *can* screw it down real good, flash it, and booger a lotta caulk all over, and it will leak "less and not right away", but replacement would be better if possible.

yes I do have more tin. Most is going to be siding on the house.

Hmm, how much snow do you get? Normally one uses a heavier gauge of steel for the roof (in snowy areas anyhow) than for siding.

Yes he used roofing screws. I don't think he used enough.

Well, you can shoot a bunch more in. You want them every rib across (may want more near the edges of the roof in a windy area) and in rows no more than 2' apart horizontally (matching the spacing of your purlins or blocking). You really, really need to add sturdy immovable wood supports for those side overhangs though.

Good luck, have fun,

Pat​