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fliphusker
Need some roofing advice
fliphusker

The roof on my sparingly used garage is in really bad shape. Until this year was just some minimal leaking, but this spring it has got bad. As I had to spend $3k more replacing my homes roof last year, it ate up the money I was going to use for it. So I tried using a quick fix with a sealing compound on where the leaks were. To my chagrin the sheeting is so degraded, that I almost put the brush through the roof.
I want to fix it right, but my resources are limited right now.
Is it possible to put steel roofing over the top of the sheeting and the 1 layer of crumbling asphalt shingles? I know this is a really bad idea but I am worried about continued degradation to my garage. I just did not know that the sheeting was actually this bad.
Any ideas or suggestions are welcomed and appreciated.

A. Spruce
Re: Need some roofing advice
A. Spruce

The question isn't "can you", because you can do anything you want. The real question is "should you" overlay a rotten roof with metal.

Herein lies the problem, if the decking is rotted through, then how do you propose to get on the roof to install the metal, much less, what are your fasteners going to have to bite into to keep the metal from being ripped off in the first minor wind storm? Can you overlay the existing roof, yes, SHOULD you do it, absolutely not!

You will be wasting time and money to cover up the problem in hopes to bandaid it to last a little longer. It will be a far better investment to cover it with a tarp until such time as you can afford to do the repair properly.

dj1
Re: Need some roofing advice
dj1

Good answer above from spruce...I wish I could say something different, but doing it wrong is never a good idea, plus you will see your money going down the drain.

I would cover the roof with heavy plastic, heavier than tarp...it will buy you some limited time, before it develop holes.

Can you borrow money to do the roof right? sometimes it could be the only way to get it done.

ed21
Re: Need some roofing advice
ed21

Another spruce got it right vote. Covering up a rotted roof deck is not a good idea for all the reasons mentioned. And probably a few more.

fliphusker
Re: Need some roofing advice
fliphusker
A. Spruce wrote:

The question isn't "can you", because you can do anything you want. The real question is "should you" overlay a rotten roof with metal.

Herein lies the problem, if the decking is rotted through, then how do you propose to get on the roof to install the metal, much less, what are your fasteners going to have to bite into to keep the metal from being ripped off in the first minor wind storm? Can you overlay the existing roof, yes, SHOULD you do it, absolutely not!

You will be wasting time and money to cover up the problem in hopes to bandaid it to last a little longer. It will be a far better investment to cover it with a tarp until such time as you can afford to do the repair properly.

I appreciate the answer, and really figured that was going to be the answer I was given. I talked to a guy who did it on one of his rental garages. Figured he would pay the price later.
Was just wondering if there was possibly an alternative I was not thinking about, before I took out a loan on it. Just paid my house off last year. (Repo slowly being reclaimed from extreme poor condition) Have to pick my battles, unfortunately this was not one of those battles I expected to have to take care of this soon.
Thank you all for the replies, I appreciate the help.

A. Spruce
Re: Need some roofing advice
A. Spruce

The only other advice I can offer is that if you do move forward with a metal overlay, think ahead! When it comes time to repair the roof properly, how is the deck and framing going to be done? Why do I ask this, because if you plan for this now, then you can lay out the fasteners in the metal and reuse the metal later, otherwise it's just tossing more money after bad to do any more than a tarp.

Jack
Re: Need some roofing advice
Jack

Probably the least expensive solution would be to remove the roofing and decking, install 2X4 perlins and a metal roof.

Jack

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