Corotherm Fixing Buttons - 16mm - White - 10 Pack
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Product Information
Full details
This guide is for DIY enthusiasts and builders looking for a reliable way to attach multiwall polycarbonate sheeting to timber supports. The key benefit is a secure, watertight fixing solution, preventing leaks and ensuring longevity. A minor caveat is that these are specifically for timber, not metal, frames. This pack includes 10 fixing buttons, each with a watertight covering button, seal, and plastic washer, designed for straightforward installation.
All features
| Brand | Corotherm |
|---|
Extended Product Information
FAQs
What size screws should I use?
Screws are not included. Use exterior-grade screws with a head diameter suitable for the covering button and a length appropriate for your timber thickness.
Can I use these on metal frames?
No, these fixing buttons are specifically designed for use with timber supports only.
What does each pack contain?
Each pack contains 10 sets of fixing buttons, including 10 watertight covering buttons, 10 seals, and 10 plastic washers.
How many fixings do I need per sheet?
The number of fixings required depends on the size of the polycarbonate sheet, its thickness, and environmental factors like wind load. Consult the polycarbonate manufacturer's guidelines for recommended fixing patterns and spacing.
Do I need to drill the timber?
Yes, a pilot hole should be drilled into the timber support to ensure secure screw insertion and prevent wood splitting. The pilot hole size should be slightly smaller than the screw shank.
How do I clean the polycarbonate around the fixings?
Use a soft cloth and mild soapy water. Rinse thoroughly and dry with a clean, soft cloth. Avoid abrasive cleaners or tools that could scratch the polycarbonate or damage the seals.
Troubleshooting
Fixing is not watertight
Ensure the watertight covering button and seal are correctly positioned and seated. Check that the plastic washer is providing an even surface. Verify no gaps exist around the screw head.
Polycarbonate sheet appears stressed around the fixing
The pre-drilled hole in the polycarbonate may be too small, or the fixing is overtightened. Loosen the fixing slightly to allow for expansion and contraction. Ensure correct hole size is used for the washer diameter.
Fixing feels loose
The pilot hole in the timber support may be too large, or the screw is not long enough. Use an appropriate screw length and ensure the pilot hole is correctly sized for the timber type.
Pros and Cons
Pros
- Ensures a watertight seal, preventing leaks.
- Designed for easy and secure attachment to timber.
- Durable components contribute to long-term stability.
- Provides a clean, professional finish.
- Each pack contains all necessary parts for a single fixing point.
Cons
- Only suitable for timber supports, not metal.
- Requires pre-drilling holes in the polycarbonate.
- Sold in packs of 10, which may be insufficient for larger projects.
Setup, Compatibility & Care
Setup:
- Determine the required spacing for fixings based on the polycarbonate manufacturer's recommendations and expected wind loads.
- Pre-drill a hole through the polycarbonate sheet at each fixing location. The drill bit size should match the diameter of the plastic washer.
- Drill a pilot hole into the timber support, slightly smaller than the screw shank diameter.
- Assemble the fixing button: place the plastic washer over the timber support, followed by the polycarbonate sheet. Insert the screw (not included) through the polycarbonate and washer, into the pilot hole.
- Place the watertight covering button and seal over the plastic washer and screw head. Secure firmly.
Compatibility:
- Designed exclusively for use with timber supports (e.g., rafters, purlins).
- Compatible with 16mm multiwall polycarbonate sheeting.
- Requires appropriate screws (not included) suitable for outdoor timber applications.
Care:
- No specific ongoing care is required for the fixing buttons themselves.
- Periodically inspect fixings to ensure they remain secure and the seals are intact.
- Clean polycarbonate sheeting according to manufacturer guidelines, avoiding abrasive materials around the fixing points.