SunRail Budget (SRB) Bifacial, a low-cost Flat Roof Bifacial Solar PV Racking System. (No crossrails. PV panel must allow for clamping on the short side.)
Max Snow Loads
Max Wind Loads
PV Panel Orientation
Hydrid (ballasted & Anchored)
Dead Loads on roof (Ballasted)
Dead Loads on roof (Anchored)
PV Panel height from roof
Roof Type Compatibility
Typical Bifacial Gains Observed
Designed to boost performance of Bifacial PVs
Freedom of design
Complete turn-key engineering services
Easy to assemble
Full Aluminum Design
Perfectly Safe for the roof
UL 2703 Certification
Fully Adjustable System On-Site
Typical Overall Racking Installation Speed (including PV panels' DC connection)
Highest Standard for Engineering & Support
Our engineers use only the safest methods of calculation, to assure maximum solidity and durability of the structures. We have proprietary, recent wind tunnel tests with Western University, and we design using the latest Building Codes (ASCE-7-16, NBCC 2016, IBC 2018), as well as SEAOC PV2 notions of array size versus roof size to account for extraordinary vortices. Minimal deflection allowed on rails, and finite element analysis done with high-end 3D engineering software. Each zone ballast & anchors calculated individually. We find solutions to each unique challenge, and we react quickly if unforeseen events happen during construction (such as unmarked drains, roof equipments obstruction and last minute changes).
Project-Specific Building Permit Plans & P.Eng stamp with each project
Custom, project-specific building permit plans, stamped by a local P. Eng., are provided for each job, describing step-by-step where each component goes, on the exact project site, with markups, details and explanations custom to each project's specific difficulties.
Documents & Specifications
OPSUN Total Engineeringtm Support
Opsun's racking is not a single product : it is instead a large library of rails, components and configurations that we can adapt to match any client's requirements.
Full engineering Support
Opsun experts takes care of all the mechanical aspects of your solar PV project and we deliver detailed, project-specific set of engineering plans to help accelerate installation time.
Opsun is your solution finder to a wide array of challenges, such as limited roof capacity, directly attached or hybrid (both ballasted & anchored) systems.
Opsun On-Site Support allows your installation team to benefit from the instructions and supervision of an expert from Opsun's team, with 15 years of experience.