Wind Uplift
Weathering the Storm with Rooftop Supports
Weathering the Storm with Rooftop Supports Green Link, Inc. Presented by Kaitlyn Briggs (Kaitlyn Briggs) This presentation was originally featured as part of AEC Daily’s Virtual Education SpotLight Symposium in December 2023. We received several questions over the course of the day, but unfortunately didn’t have time to answer them as part of our presentation.…
Read MoreEnhancing Project Integrity with Green Link, Inc.’s KnuckleHead Pipe Supports
Green Link, Inc.’s KnuckleHead Pipe Supports can be used to properly support pipes and manage cables in HVAC installations.
Read MoreNew 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…
Read MoreTall VRFs/Mini-Splits: Blowing in the Wind? Here’s an Answer.
Mini splits are becoming increasingly popular on commercial buildings as well as residential housing. Usually, they can be mounted on any number of support systems, but the taller, narrower profile of the larger units creates a level of vulnerability. In windy conditions, it can tip over, even if mounted. The greater surface area of the…
Read MoreCase Study: A Public School in Michigan
Clearing the Way for Coating A public school roof in central Michigan, was scheduled to be resealed with a liquid applied coating. Two adjacent roof sections were involved separated by a parapet wall over which line sets needed to pass. Prior to coating five mini splits using 4”X 6” wood sleepers were mechanically fastened to…
Read MoreRough-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…
Read MoreAttachment: 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 thought…
Read MoreKnuckleHeads 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…
Read MoreKnuckleHeads 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 September,…
Read MoreAttachment and Wind Uplift
Attachment and Wind Uplift Failure to plan for wind uplift on rooftop equipment can lead to significant roof damage or even catastrophic failure. High winds can impact solar installations as well as pipelines, especially when loaded on extensions. Mechanical Fastening The KnuckleHead System can be loose laid, but where wind uplift is a factor, it…
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