Frameless modules are inherently less expensive than traditional framed panels and have additional benefits including better performance due to a lack of debris buildup at the edge of the module, no grounding requirements and both increased packaging density and less weight resulting in lower transport and warehouse storage costs. Frameless modules are also appealing to those seeking aesthetics, as panels can appear to be “floating” on the roof.
A number of different installation techniques have been developed for frameless modules:
For installations on pitched-roofs, frameless clamps with rubber guards have been designed to protect the glass and allow a traditional installation without a frame. Torque limiters should be used to prevent overtightening.
For ballasted and ground-mount based systems, adhesive-based solutions have been developed, which eliminate the need for a clamp. Adhesives have been used for years in the construction industry for glass skyscrapers, and they are produced by well-known manufacturers.
Pre-assembly and pre-wiring of the modules in a controlled environment such as a warehouse can help decrease installation times and labor costs. Panel building blocks are then transported to the site. This can be extremely beneficial for projects that require prevailing wage labor rates.
Automation and robotics can enable megawatt-per-day installations by small crews with significant BoS savings, accelerating cash flows and increasing ROI. This also reduces site grading, repair costs and abates dust and dirt buildup on the modules.
The combination of frameless modules and unique installation techniques can help you grow your business.
This tip was provided by Seth Stulgis, senior marketing manager for Stion.