The toxic top: The environmental and structural risks of treated lumber supports on rooftops.
The market has been shifting away from treated wood blocks for rooftop support of pipes, HVAC equipment, and ductwork, etc., largely because they are subject to biodegradation—in other words, rot. When the sleepers deteriorate, they cause pipe sag and unbalanced HVAC equipment which shortens operational life. But there are other issues—critical ones—for moving toward other…Read More
Case 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 More
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…Read More
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 September,…Read More
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…Read More
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…Read More