New Mechanical System for Supporting HVAC Equipment

GreenLink has introduced an engineered mechanical support system for mounting a wide range of HVAC equipment including AC units, mini splits, heat pumps, condensers, and associated pipelines and conduit.  The system is designed to produce an extremely secure installation, especially in the face of high winds and seismic events. It is available as a kit [...]

By |2020-11-02T13:36:08-05:00November 2nd, 2020|Engineering, HVAC, Support, Wind Uplift|Comments Off on New Mechanical System for Supporting HVAC Equipment

The origin of the KnuckleHead Name

The first KnuckleHead At the turn of the century, it became evident that woodblocks, bricks and other improvised supports for rooftop equipment were no longer sustainable. The first engineered support system was designed by Dr. Tibor Keller, a master machinist. This component was capable of lifting and holding light pipes such as conduit, gas pipes [...]

By |2020-11-02T13:22:53-05:00November 2nd, 2020|Engineering, Knuckleheads, Support, Uncategorized, Wood Blocks|Comments Off on The origin of the KnuckleHead Name

Securing HVAC Equipment on Mod-Bit Roofs without Mechanical Fastening

Modified bitumen roofs continue to maintain a significant share of the domestic market.  Mod bit is often described as “rubberized” asphalt, meaning it consists of asphalt and a polystyrene or polypropylene polymer infused into a reinforcing fabric.  It is applied in 4’ squares as a two-ply system: first a base sheet, then a top sheet [...]

By |2021-02-17T13:15:44-05:00November 2nd, 2020|HVAC, Knuckleheads, Roofing Materials, Support|Comments Off on Securing HVAC Equipment on Mod-Bit Roofs without Mechanical Fastening

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

KnuckleHeads Prevent Split Tip-overs in High Winds

KnuckleHeads Prevent Split Tip-overs in High Winds Roof-mounted heat pump splits are often attached to 4’ X 4’ treated wood beams, which are loose laid on the roof membrane.  While this has been common practice for many years, the emergence of taller “double stacked” units has created a new problem:  “wind sailing.”  Contractors and building [...]

By |2019-12-03T20:19:24-05:00November 22nd, 2019|HVAC, Roofing Materials, Support, Wind Uplift|Comments Off on KnuckleHeads Prevent Split Tip-overs in High Winds

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

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”?

Installing KnuckleHeads: A Value Proposition

Is protecting a $55,000 roof job worth a few hundred dollars?   Recently, a building owner in Michigan contracted for a re-roof of his building.  A ten-man crew installed a PVC membrane to the roof.  Pipes and HVAC equipment, originally positioned on wood sleepers, were moved to allow for the installation.  Once the job was [...]

By |2018-10-24T13:56:06-05:00May 23rd, 2018|HVAC, Knuckleheads, Support, Wood Blocks|Comments Off on Installing KnuckleHeads: A Value Proposition

The KnuckleHead Solar Support System

The KnuckleHead Solar Support System There are two main types of solar mounting systems:  Mechanically attached or ballasted. KnuckleHeads by GREEN LINK, Inc. are mechanically attached. KnuckleHeads feature a simpler, integrated end-effective design that combines attachment and a solar-ready support head in one unit. Typical solar support products function strictly as attachment bases that [...]

By |2019-05-09T14:57:19-05:00December 29th, 2017|Solar, Support|Comments Off on The KnuckleHead Solar Support System
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