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So far Dana Castle has created 14 blog entries.

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+00:00November 22nd, 2019|HVAC, Roofing Materials, Support, Wind Uplift|Comments Off on KnuckleHeads Prevent Split Tip-overs in High Winds

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+00:00January 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+00:00January 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+00:00October 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+00:00October 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+00:00July 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+00:00July 23rd, 2018|HVAC, Knuckleheads, Wood Blocks|Comments Off on Elevating and Leveling Rooftop-Mounted Equipment

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+00:00May 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+00:00December 29th, 2017|Solar, Support|Comments Off on The KnuckleHead Solar Support System