Case Studies & Best Practices
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- Case Studies & Best Practices
Roofing screw problems can lead to rust, leaks, cracked polycarbonate, and even sheet blow-offs — risking your entire roofing investment. At Roofix, our corrosion-resistant, high-performance screws solve these real-world issues before they become costly failures.
- CASE 1
Bimetallic Corrosion
Many people don’t know that using screws made of a different metal than your roof sheets can create a chemical reaction called bimetallic corrosion. This is one of the most overlooked roofing screw problems, leading to premature failure. For example, if you use galvanized screws on aluminum sheets, the metals react when rainwater runs over them. This makes the screws rust faster, which weakens the hold and leaves ugly rust marks on your roof.
Eventually, the screws can fail, causing parts of the roof to lift or leak. This not only looks bad but leads to expensive repairs.
✅ Roofix Solution:
At Roofix, we make sure you pick screws that match the metal of your roof sheets, or we use our special multi-layer Rust Shield coating that stops this reaction. This keeps both the screws and your roof safe for many years.
- Case 2
Screws Break Under Load
If you use screws that are not designed for thick steel beams or heavy roof structures, they can shear or snap under the pressure. This usually happens when someone uses light-duty screws for hot rolled beams or thick purlins. Roof screw failure can occur when improper fasteners are used on thick steel purlins or beams.
Imagine spending so much on sheets and frames only to have them become loose because the screw literally breaks inside the steel. It leads to serious safety risks and costly downtime to replace everything.
✅ Roofix Solution:
We have screws specifically designed for different steel thicknesses like up to 4.5mm, 8mm, or even 12mm. These are made from case-hardened carbon steel so they’re extremely tough on the inside and sharp on the outside, drilling through without breaking.
- CASE 3
Not Enough Screws
Another common mistake is using too few screws to save on cost, or placing them too far apart. This might look okay on a sunny day, but during high winds or heavy rains, the sheets can start to lift or flap, leading to leaks or even sheets flying off completely.Incorrect screw spacing for metal roofs is a key reason for sheet flapping and lifting during storms.
This doesn’t just damage your roof. It can also be dangerous for people below.
✅ Roofix Solution:
We help calculate the right number of screws and how far apart they should be based on your local wind conditions, sheet type, and structure. Our team gives clear spacing guidelines so your roof stays secure and protected, even in storms.
- Case 4
Cheap Screws Make Ugly Rust Stains
Using low-quality screws might save money in the beginning, but these screws start rusting quickly. As they rust, rainwater carries the rust down onto your sheets, leaving permanent brown stains that ruin the look of your entire building. Rust on roof screws is one of the most visible and damaging long-term issues.
Worse, as these screws keep rusting, they become weaker and eventually fail, risking water leaks and structural problems.
✅ Roofix Solution:
Our screws are coated with our special multi-layer Rust Shield, tested under harsh conditions to meet AS 3566-2002 Class 3 standards. This means they resist rust far longer, even in coastal or humid areas, keeping your roof looking new and structurally sound for years.
- CASE 5
Wrong Screws Crack Polycarbonate Sheets
Polycarbonate roofing screw cracking is common when incorrect fasteners are used without thermal expansion features. Polycarbonate sheets expand and contract more than metal. If you use ordinary metal screws without wings or thermal holes, they grip the sheet too tightly. As the polycarbonate expands under the sun, it starts to crack around the screws, eventually causing leaks or total sheet failure.
✅ Roofix Solution:
Our polycarbonate screws are specially designed with a wing feature that cuts its own thermal expansion hole. This lets the sheet expand naturally without cracking. We also use large EPDM washers that gently hold the sheet in place, giving you a strong, watertight seal without damage.
- Case 6
Bad Washers Lead to Leaks
Many cheap screws come with poor-quality rubber washers that crack, harden, or shrink under sunlight. Once this happens, water seeps through the holes around the screws. Over time, this silent leak can damage insulation, ceilings, or even electrical systems inside the building. A small leak around fasteners can lead to insulation or electrical system failure — a critical but often ignored roofing screw problem.
✅ Roofix Solution:
We only use premium DEKS TrueBlue EPDM washers, known worldwide for staying flexible and watertight under extreme weather. They don’t crack, shrink, or leak — giving you peace of mind that your roof is sealed properly.
- CONTACT
Get In Touch With Us!
Have a question or need a quote? Our team is ready to help you choose the right roofing fasteners and accessories for your next project.
- +91 8080604030
- roofex@outlook.com
- Suite No. 19, 1st Floor, Plot No. 3A, Udyog Nagar, Goregaon (W), Mumbai – 400 104, Maharashtra, India
