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+00:00 July 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 water. [...]

By | 2018-07-23T20:25:35+00:00 July 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 completed, [...]

By | 2018-07-05T17:00:39+00:00 May 23rd, 2018|HVAC, Knuckleheads, Support, Wood Blocks|Comments Off on Installing KnuckleHeads: A Value Proposition

Correctly Placing HVAC Units on Commercial Rooftops

Rooftop units are an extremely common setup in HVAC systems for commercial buildings due to their ease of installation, good energy efficiency and ability to provide heating and cooling in one unit. Unfortunately, an improperly placed and installed packaged rooftop unit can lead to roof damage, including punctured membranes and sagging that could lead to ponding water and leaks. [...]

By | 2017-10-31T17:10:42+00:00 October 31st, 2017|HVAC, Knuckleheads, Support|Comments Off on Correctly Placing HVAC Units on Commercial Rooftops

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 is recommended that KnuckleHeads [...]

By | 2017-10-04T14:53:20+00:00 October 3rd, 2017|Knuckleheads, Support, Wind Uplift|Comments Off on Attachment and Wind Uplift

Securing Rooftop Supports

There is a wide range of rooftop supports available on the market.  A variety of products are designed to accommodate pipes, struts, pavers, and related equipment of all sizes.  Some of these are designed to be loose laid, which for many installations such as electrical conduit or pipelines is acceptable.  Loose laid supports offer the advantage [...]

By | 2017-08-18T17:40:50+00:00 August 18th, 2017|Knuckleheads, Roofing Materials, Support|Comments Off on Securing Rooftop Supports

Preventing Pipe and Duct Sag

It is not unusual for a contractor or building owner to climb up on a commercial roof and encounter sagging pipes and ducts.  The causes vary.  In some cases, the supports have deteriorated due to weather.  Wood sleepers are probably the most common type of support failure.  Over time, weather cycles will eventually cause the [...]

By | 2017-08-11T19:37:20+00:00 August 7th, 2017|Knuckleheads, Roofing Materials, Support|Comments Off on Preventing Pipe and Duct Sag