If you’ve ever been around a roofing job—especially a commercial one—you might’ve spotted these little round metal discs lying around. They look like something you’d find in a toolbox and wonder, what is this for, again? Those are called roofing tincaps, and even though they seem pretty unremarkable, they actually do a lot.
Let’s Break It Down
A roofing tincap is basically a flat, circular disk—usually metal, sometimes plastic—that gets paired with a nail or screw. You use them to hold stuff like insulation boards or roofing underlayment in place. Picture a big washer, but one that’s built for weather, wind, and all the stress a rooftop has to deal with.
Why not just use a regular nail? Good question. When you’re dealing with soft or lightweight materials, a normal nail might just tear right through it. The tincap spreads out the pressure so the material doesn’t get damaged. Simple, but kind of brilliant.
Why Bother With Them?
A few reasons, actually:
**They hold things down better, especially when wind tries to mess things up.
**They stop materials from shifting before the final layers go on.
**They protect delicate stuff like foam boards or roofing felt.
**And some are even rust-resistant, which is great for long-term durability.
So yeah, they’re small, but they pull their weight.
Where Do You See Them?
Usually in commercial flat roofing jobs. Think warehouses, big box stores, and so on. But you’ll also see them in residential settings if there’s a need to hold down synthetic underlayment or foam insulation.
You’ll find them used with things like:
TPO or EPDM roofing
Polyiso boards
Synthetic felt underlayment
Sometimes, especially in windy places, roofers use a whole bunch of them spaced out just right to keep everything nice and snug.
Are All Tincaps the Same?
Nope. Some are round. Some are square. Some are made of steel. Others are plastic. The right one depends on what kind of roof you’re working on, how much wind you’re expecting, and what kind of material you’re securing.
At SUNWELL, we manufacture a variety of roofing tincaps to meet different project needs.
Need something specific? As an experienced roofing tincap manufacturer, we offer OEM and ODM services for custom sizes, logos, and packaging.
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