Hi all,
I've done small roof repair here and there.
And after talking to my friend, he informed me of a elderly friend of the family that needs some roof repair.

So I said sure, I'll take a look at it.

Well, I head up on the roof and find a 8 x 15 foot section that is completely rotted out!

The plywood is flexing all over...I almost put my foot through! The shingles look great though as well as the joists. There firm.

She has no attic so I can't see if the water is getting through the peak, or halfway down the roof.

I know she needs a complete roof because of the damage and age...but my question is:

Is there a way, that I can fix this just to hold up during the winter??

I thought of running some ice and water shielding from the peak, down to the gutter edge over the damaged area. Of course overlapping each row.

And when all done, lay some roof tar on the outer edges of the ice shield.

Sounds doable??

I don't want this failing during winter, because they will charge her a fortune for a new roof....I feel really bad for this widow

Thanks for any help

Possible condensation problem? Check the venting. Cathedral ceiling needs each truss bay vented both top and bottom. Covering this section with a tarp or I&W could exacerbate the problem.

FWIW

I'd be running the I&W from the peak down to the gutter edge. I would start it just under the first row of shingles at the peak.

I'm just worried that it might not seal.

My friend Tim (roofer) said it should work fine, but I wanted to make sure with some view points from other pro's.

Hi,

Is it a single home or a townhouse?

If the shingles are good, it could be firerated plywood that is bad.

I would not waste the money on ice shield. Fix the section, it will be easier and 3 pieces of plywood and a square of shingles.
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I&WS is not meant to be left exposed to sunlight for more than 30 days; 90 days if it is Tamko's Metal & Tile I&WS. In my opinion, you would be better off installing a tarp or some roll roofing as a temporary measure until the roof can be replaced. Obviously, the tarp would be ugly and susceptible to blow-off, but would be cheap and easy if you install it with furring strips to hold it in place. Otherwise, I'd go with some 90# roll roofing that you can set and seal with roof cement.

Obviously, if you were a roofer I'd have other recommendations for you, but as a DIY'er helping out others, the roll-roofing may be the way to go. You can nail it down with Simplex cap nails and seal any exposed nails with roofing cement. Install nails in the laps, and make sure the laps all shed water.
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Professional Roofing & Waterproofing Consultant