RoofClamp RCT: The Ultimate High-Clearance Standing Seam Attachment
The RoofClamp RCT is the heavy-duty "big brother" to our popular RC model, specifically engineered to fit over 95% of today's standing seam profiles. Crafted from high-grade 6061-T6 aluminum with all-stainless-steel hardware, the RCT is the industry's most universal solution for attaching solar panels, roof walkways, satellite dishes, snow guards, and heavy-duty equipment without piercing the metal panels.
Maximum Clearance, Unmatched Versatility.
Watch this technical overview to see the difference between the RC and RCT models and why the RCT is the premier choice for large bulb-style seams.
Why Professionals Choose RoofClamp RCT
- Industry's Most Universal Fit: Why stock dozens of different clamp shapes? The RCT's patented one-piece body (US Patent Number D629,679) conforms to nearly every standing seam profile in the field, including large bulb and T-style seams.
- Premium 6061-T6 Construction: Precision-machined for superior strength in both parallel and perpendicular loading. Our 3-point attachment system sets the industry benchmark for long-term reliability.
- Increased Interior Dimensions: With a 1" W x 1-3/8"H interior and a .5"H x 1.5"W seam channel, the RCT provides the extra clearance needed for complex roofing profiles that smaller clamps cannot accommodate.
- Unlimited Reusability: Featuring anti-seizing, coarse-thread set screws, the RCT allows for unlimited re-attachment and re-torqueing. It is designed for convenience, efficiency, and zero-waste installations.
Important Safety Note: The RoofClamp RCT is engineered for equipment mounting only and must not be used for fall prevention. For certified standing seam fall protection, we recommend the SSRA1 Standing Seam Roof Anchor.
Technical Specifications
- Material: High-Grade 6061-T6 Aluminum with Stainless Steel Hardware.
- Internal Dimensions: 1"W x 1-3/8"H (Seam Channel: .5"H x 1.5"W).
- Attachment: Three 1-1/4” x 3/8” cupped-nose set screws forming a permanent button lock.
- Top Mounting: One 3/8” threaded hole for easy accessory integration.
- Minimum Order: 10 units.
RoofClamp RCT Frequently Asked Questions
1. When should I choose the RCT over the standard RC model?
The RoofClamp RCT is designed for seams that are wider or have a larger "bulb" than standard vertical seams. The RCT provides the necessary interior clearance to seat the clamp correctly without interference on wider t-seams and bulb seams, most snaplocks, mechanically-seamed, and trapezoidal panels.
2. Does this clamp pierce the metal roof panel?
No. Like all our RoofClamps, the RCT is non-penetrating. The cupped-tip stainless steel screws create an "anchor point" by dimpling the seam, providing high pull-out strength while keeping your roof's watertight seal and warranty intact.
3. Can I use the RCT for mounting Starlink or other satellite dishes?
Absolutely. The RCT is the primary clamp used in our SataMount RCT systems. Its structural strength makes it perfect for high-wind installations and heavy masts.
4. Is the hardware included with the clamp?
Yes. Every RoofClamp RCT comes with all required stainless steel hardware, including three set screws and one top mounting bolt with a washer.
5. What is the torque requirement for the RCT?
For optimal holding strength, the set screws should be torqued to 90 in/lbs. This ensures a secure attachment while preventing damage to the aluminum clamp body or the roof panel.
6. Is this clamp compatible with asphalt roofs?
No. The RCT is specifically designed for standing seam metal roofs, where it can grip the seam. For screw-down or asphalt roofs, please see our SataMount MRM options.
7. How do I avoid common problems during RCT installation?
- 1. Check Seam Profile: Ensure your seam fits within the 1" W x 1-3/8"H interior. If the clamp doesn't slide on easily, do not force it.
- 2. Regular Inspection: For heavy items like HVAC lines or satellite dishes, we recommend a semi-annual inspection of the torque to ensure the clamp hasn't shifted due to snow or wind.
- 3. Use Proper Bits: Always use a 3/16" Allen bit for the set screws to avoid stripping the heads during high-torque applications.
