Patented snow guard design protects roofing material from damage > PMC INDUSTRIES, INC. manufacturer of AceClamp SSMR Clamps for standing seam metal roofing
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Patented snow guard design protects roofing material from damage

Our clamps are designed with a "sliding pin" mechanism, versus a "set screw" system, therefore the AceClamp® does not penetrate the panel material.  Plus, they come fully-assembled, saving the contractor on installation time.

Most attachment specifications call for “non-penetrating fasteners,” so installers won’t penetrate and compromise roofs that the owner just spent thousands of dollars installing. As a result, many non-penetrating clamp designs will not puncture a roof’s surface. Most of these work well with new roof panels coated with the latest high-performance finishes.

A rejuvenated roof is a very different application. Once a new, energy-effective, reflective surface is applied, a roof is free from leaks and warranted to remain leak-free for five, ten or more years.  The surface is very different from a brand new roof, so you should be more selective when choosing the proper clamps for roofs with these coatings.

At AceClamp®, we're committed to getting you on and off the roof faster!

Roof clamp design and its impact on roofing material finishes


The below example shows how roofing panels are affected by three different installed seam clamp technologies. AceClamp, shown left, clearly has caused less impact on the panel's finish. (Sliding Pins)


The same roof panel shows the effects of the same installed seam clamps. On the side opposite the set screw, the bottom lip of the clamp actually cut through the reinforcing fabric, providing an obvious path for water to enter into the seam. Clamp damage is visible in the coatings and in the fully reinforced liquid-applied membranes. Compromising the membrane can create even more problems than damaging a coating since it has the potential to actually create leaks.

Find the best metal snowguards for your roofing material.
We manufacture snow retention systems for SSMR, Membrane, Asphalt, Tile and Slate roofing. AceClamp® systems also help stop falling ice with our convenient and easy-to-install ice guard attachments.

AceClamp A2 Snow Guards shown on Metal Roof


Ace Clamp 3 Rail Snow Guards Shown on Shingle Roof


AceClamp 3 Rail Snow Guards Shown on Slate Roof


AceClamp Color Snap® M for Membrane, TPO roofs


Our Quality Statement

PMC Industries, Inc. aims to ensure that the manufacture of its molded and metal products are of the highest quality. We have partnered with companies in the aerospace, medical, automotive, solar, robotic and construction industries. We intend to meet or exceed our customer’s expectations. Our molded polycarbonate Snow Queen and Snow King snow guards are still the standards in the industry today.

* periodic ACE products and updates only.

About Us

If you’re using the same old products to mount solar, satellite, communications, ductwork – or practically anything-to metal roofs you’re wasting time and money. The AceClamp® family of metal snow guards and solar mounting clamps give you stronger, more flexible mounting options – without damaging roof surfaces and risking roof warranties.

Contact Us
  • PMC Industries, Inc.
  • 87 Spring Ln. Plainville, CT 06062 USA
  • Phone +01 860 351 0686
  • Fax +01 860 351 0689
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LEGAL DISCLAIMER: Products shown on this website may include 3D generated artwork that may differ from actual product. Design and specifications subject to change without notice. Unauthorized copying or use of any content included within this website is strictly prohibited. AceClamp products are not approved for use as a personal fall-restraint device. **Results may vary. Always follow proper installation and torque specifications. Be sure to check snow loads for your area before purchasing.