TUYUE IMPORT AND EXPORT

1.Testing Methodology & Parameters

We wanted this to feel legit, so we created conditions that act like what a roof really goes through—just on fast-forward. Think of it like a brutal, sped-up version of ten years of weather, all crammed into a short time.

• What We Worked With: We attached regular metal roofing sheets (the 0.5mm polyester-coated type) onto wooden slats, exactly like you would on a real site.

• The Two Competitors: In this corner, the Ruspert roofing screw with its high-tech custom coating and special washer. And in the other corner, a plain old hardware-store zinc screw with basic plating and a simple rubber washer.

• The Tough Tests We Threw at Them: We checked how much force it took to yank them out, tested if their washers stayed sealed while being squished over and over, and—the big one—locked them in a salty mist chamber (the go-to industry torture test for rust) to see which one would wave the white flag first.

• Keeping Things Fair: We made absolutely sure every single screw was driven in with the exact same tightness, so the only thing we were really judging was the screw itself, nothing else.

2.Corrosion Resistance: The Primary Failure Point

Rust is what takes out most roof screws for good. Our salt spray test, which acts like years of coastal air or tough weather, showed a difference so huge it was almost funny.

• How the Zinc Screw Held Up: Honestly? It didn't do well at all. We spotted nasty red rust on the threads and point of the zinc screw after only a couple of days. That thin zinc layer just didn't stand a chance; it fell apart quickly and let the steel underneath start to rot.

• How the Ruspert Roofing Screw Held Up: This one was the clear champion. Even after sitting way longer in that salty fog, the Ruspert roofing screw still looked pretty much new. That thick, layered coating it’s got is like a full suit of armor—it totally stopped the moisture and salt from ever getting to the real metal underneath. That tells you it’s built to go the distance.

3. Pure Strength & Staying Bone Dry: It’s More Than Just Not Rusting

A screw isn't just a metal spike; it has to clamp down hard and keep every single drop of water out, forever. We tested that part, too.

• Pure Gripping Power (Pull-Out Test): Fresh out of the box, both screws had about the same holding strength. But after those zinc screws got all rusty? Their grip got about one-fifth weaker because the corroded threads started to give way. The Ruspert's grip never budged.

• The Washer Seal (The Silent MVP): We fake-aged them by simulating years of the roof expanding with heat and shaking in the wind. The custom EPDM washer on the Ruspert roofing screw compressed down and created a perfect, lasting seal. The washer on the zinc screw started to get hard and show little cracks much earlier, which is basically a flashing warning sign for a future drip.

4. The True Price Tag: Saving Pennies Now vs. Paying Pounds Later

Yeah, if you only glance at the price per screw, the generic zinc screw looks like a bargain. But you have to zoom out—what's this decision going to cost you in five or ten years?

• The Real Danger: A rusty zinc screw fails. That means a leak. Tracking down and fixing that one leak means labor hours, maybe swapping out panels, and a ton of frustration. Any "savings" you got from the cheaper screw disappears the second you make that repair call.

• Value Over Time: The Ruspert roofing screw is engineered to last as long as your roof is designed to. It’s the pick that lets you rest easy, knowing you won't get a callback. It safeguards your workmanship and your client's investment, which actually makes it the less expensive choice over the entire lifetime of the roof.