We bought a house last September. In the garage were two flats of shingles left over from the last time the roof was redone. I'm not exactly sure when the roof was last done but it was recently. The singles have a manufactured date of 04/16. The garage has never been above the low 90s in my ownership as it is pretty well insulated. The shingles are in the way on the garage floor.

What do I do with these? Are they shot from the heat binding them together? Can I put them in an attic over the garage that gets a lot hotter without ruining them? Should I cook them tar side down or tar side up?

TiA

They are made with some type of cellophane type strips on the tar strips so they don't stick together until the strips are removed during installation, exposing the tar underneath. They are also usually stacked face to face in pairs to make it even less likely they stick. They should still be plenty separable and usable for repairs.

Great! How about moving them to an attic? Seems like more of the same except hotter. Correct?

Two bundles or like 8 bundles? That's as close as you're ever going to get to matching what's on the house if you ever need to.

Attic is probably not the best place for them for long.

All that said, I'd keep a few shingles for color matching only and toss everything else. For me, if a customer needed a repair, I'd use those for color matching only and buy new.

BrazosDog02 said:

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Two bundles or like 8 bundles? That's as close as you're ever going to get to matching what's on the house if you ever need to.

Attic is probably not the best place for them for long.

All that said, I'd keep a few shingles for color matching only and toss everything else. For me, if a customer needed a repair, I'd use those for color matching only and buy new.

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This - neighbor across the street did some DIY repairs after the wind storm we had in Dallas in June and the color doesn't match. Close but not quite and It looks terrible. When you're talking about something like a shingle roof, that is typically a large monolithic slab of dark color designed to not catch your attention, to have some lighter or darker spots here and there really stands out.

Being an insurance agent this statement hit me: "I'm not exactly sure when the roof was last done but it was recently."

Most insurance companies give you a discount depending on how old your roof is. Not greatly pressing information, but you probably want to find that out. What city are you in?

Those plastic strips don't need to be removed. They are there to prevent the tar strip on the top side of the shingle from sticking to the shingle above it while still in the package.

If you don't remove them for installation, they do the same thing, preventing the tar from sticking to the shingles above and below and "melting" into a cohesive roof. I know because I had to correct many "missed" shingles on a couple of houses I owned where the roofers left them on, and the shingles never fused together in those spots because of it.

If the tar strip is properly exposed they'll adhere over time and be more resistant to getting lifted up by strong wind. At least, that is what the inspectors have told me, and my experience with my current home was that the missed ones can get blown up and flap loose.

So here's the deal with those strips...

I just happen to have some shingles, ice and water, drip edge, and turbine in my truck from a job this morning, but the picture sucks. Maybe can snap a pic before I return to supplier.

The plastic strip on the shingles is on the "bottom side" of the shingles. In the packaged bundle, shingles are "back to back" and that plastic release strip does exactly as you say. It keeps them from sticking. That plastic is on the underside of the top portion of the shingle, so when they go on the roof, the plastic is up near the nail strip and the glue strip bonds with the bare underside of the shingle above it. So, You do not need to remove that strip. Certainteed prints "do not remove" on it...for what it's worth.

GAF has an advisory about it and also states removal is not necessary but if you do remove it somehow, warranties remain in effect. The only thing in the advisory that is of use here is this:

It should not be removed. DO NOT attempt to torch it off or melt it in any way.

I figured y'all would like that.