Rough-Ride for Roof Mounted Equipment

Field reports from HVAC and roofing contractors indicate an increasing issue relating to the stability of rooftop equipment installations.  Earthquakes at 6.4 magnitude in January ran through the Caribbean wreaking havoc with the electrical grid and power lines, not to mention rooftop-mounted equipment.  Elsewhere, high winds and violent storms have caused the same.  As the [...]

By |2020-01-27T21:05:31-05:00January 27th, 2020|HVAC, Knuckleheads, Nylon, Roofing Materials, Support, Wind Uplift, Wood Blocks|Comments Off on Rough-Ride for Roof Mounted Equipment

Attachment: The KnuckleHead Base and the Rooftop “Junkyard.”

In a perfect world, low-slope roofs would have nothing on them. This was the opinion of the NRCA in 1990. Since then, the proliferation of rooftop equipment and utility lines such as gas pipes and conduit is seen everywhere on low slope roofs. Different trades install layer upon layer of equipment, sometimes with little [...]

By |2020-01-27T20:56:59-05:00January 15th, 2020|HVAC, Knuckleheads, Roofing Materials, Wind Uplift, Wood Blocks|Comments Off on Attachment: The KnuckleHead Base and the Rooftop “Junkyard.”

KnuckleHeads and Hurricanes

Recently Green Link principals, Phil Georgeau, Founder, and Lisa Mulder, Technical Director traveled to San Juan, Puerto Rico to survey the destruction caused by Hurricane Maria, and to study how the use of the KnuckleHead support system could provide more stable rooftop installations in the face of future hurricanes. Hurricane Maria, which struck in [...]

By |2019-07-29T14:28:11-05:00July 2nd, 2019|HVAC, Knuckleheads, Nylon, Support, Uncategorized, Wind Uplift, Wood Blocks|Comments Off on KnuckleHeads and Hurricanes

How To: Build a Custom KnuckleHead Extension

FOUR STEPS TO MAKE A KnuckleHead EXTENSION* KnuckleHead Extensions should be used with our product to elevate equipment and pipes above the adjustable height range of a base model KnuckleHead.  Green Link provides extensions of 8, 12, and 18 inches. If you want to make your own size extension the following are the steps to [...]

By |2019-07-29T14:25:49-05:00May 17th, 2019|extension, HVAC, Knuckleheads, Roofing Materials, Support|Comments Off on How To: Build a Custom KnuckleHead Extension

KnuckleHead Rooftop Supports: The Secret Ingredient

KnuckleHead Rooftop Supports: The Secret Ingredient The KnuckleHead support has been carefully engineered and features a distinct design.  But there is something else unique about it: the material from which it is made.  That material is a high-performance polymer called Nylon 66.  Nylon 66 possesses properties that make it ideal for the conditions a rooftop [...]

By |2019-05-30T17:55:41-05:00January 31st, 2019|HVAC, Knuckleheads, Nylon, Roofing Materials|Comments Off on KnuckleHead Rooftop Supports: The Secret Ingredient

Can a Simple Rooftop Support Be “Engineered”?

Can a Simple Rooftop Support Be “Engineered”?   Rooftop supports for pipes and HVAC equipment come in a variety of shapes and sizes, and, of course, prices.  Some feature a base made of recycled rubber and a metal top for supporting pipes or struts.  Some are simple one-piece units composed of molded plastic, some are [...]

By |2019-01-07T18:33:14-05:00January 3rd, 2019|Engineering, HVAC, Knuckleheads, Nylon, Roofing Materials, Support|Comments Off on Can a Simple Rooftop Support Be “Engineered”?

Another Reason to Love the Roofing Industry: Friendships are Born When You Least Expect it.

Dana Castle didn’t know what to expect from her trip to the National Women in Roofing Day, but she sure didn’t expect this! An article posted on Rooferscoffeeshop.com By Karen L. Edwards, NWIR Communications Chair and RCS Editor. GREEN LINK Engineering’s Sales and Business Development Coordinator, Dana Castle, decided that was excited about attending the [...]

By |2019-01-03T19:49:33-05:00October 29th, 2018|HVAC, Knuckleheads, Roofing Materials|Comments Off on Another Reason to Love the Roofing Industry: Friendships are Born When You Least Expect it.

Rooftop Supports: What Do Adhesive/Sealants Bring to the Party?

Rooftop Supports: What Do Adhesive/Sealants Bring to the Party?   Many, if not most, rooftop supports are loose laid. This makes for easy installation of pipelines, air conditioning units, conduit and other rooftop equipment, but loose laid supports present a potential for problems down the road. Over time, equipment vibration and wind gusts can cause [...]

By |2018-10-25T19:35:19-05:00October 19th, 2018|HVAC, Knuckleheads, Roofing Materials|Comments Off on Rooftop Supports: What Do Adhesive/Sealants Bring to the Party?

The Dead Zone: When rooftop supports aren’t specified

Because rooftop supports aren’t typically specified, they are often improvised. A well-constructed commercial or industrial building must meet a host of specifications. The roof is no exception, and neither is rooftop mounted equipment, including pipes, conduit, HVAC/R units, solar arrays, etc. Yet between such equipment and the roof membrane is an area—an interface—where there is [...]

By |2018-07-30T18:06:27-05:00July 30th, 2018|HVAC, Knuckleheads, Roofing Materials|Comments Off on The Dead Zone: When rooftop supports aren’t specified

Elevating and Leveling Rooftop-Mounted Equipment

Elevating and leveling roof-installed pipelines and HVAC equipment are more important than may appear at first glance.   There are two issues: First, pipes, equipment or electrical conduit need to be elevated to a point where debris, sticks and leaves, snow and ice cannot be trapped underneath causing a dam that will lead to ponding [...]

By |2018-10-19T17:15:48-05:00July 23rd, 2018|HVAC, Knuckleheads, Wood Blocks|Comments Off on Elevating and Leveling Rooftop-Mounted Equipment
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