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Riga vs. The Competition

See how the Hoklartherm Riga stacks up against other greenhouse brands

Not all greenhouses are created equal. The Hoklartherm Riga series is engineered in Germany for serious growers who demand strength, insulation, and longevity. From its signature onion-shaped roof to its heavy-duty framework and thick polycarbonate glazing, the Riga is built to perform in the harshest climates. Here's how it compares to the competition on the features that matter most.

Side-by-Side Comparison

Hoklartherm Riga
Others
Glazing Thickness
Hoklartherm Riga 8mm, 10mm, or 16mm twin-wall polycarbonate panels for strength and superior insulation
Others 4mm polycarbonate panels or thinner
Solid Framing
Hoklartherm Riga Riga's roof beam is the length of the greenhouse (could be 20’ feet in one piece). The curved side framing is all one piece. This is harder to ship but those long framing pieces mean fewer weak points.
Others Many more pieces which result in possible failure points. If it is ‘UPS shippable’ that means lots of smaller framing pieces.
Captured Glazing Channels
Hoklartherm Riga Polycarbonate sits inside the channels of the heavy-duty framing of a Riga.
Others Some may have the poly stay in place with “W” clips that hold it against the framing - those clips can spring out in strong winds.
Panel Security
Hoklartherm Riga Polycarbonate panels are held in a fixed channel for maximum strength and stability
Others Panels pop into the frame and can dislodge in high wind
Polycarbonate Material
Hoklartherm Riga Uses virgin polycarbonate which is infused with UV film protection.
Others Use recycled polycarbonate which isn’t as long lasting. May have UV-film applied to only one side of the polycarbonate.
Roof Vents
Hoklartherm Riga Automatic roof vent openers included
Others Manual vent openers
Rear Ventilation
Hoklartherm Riga Large rear window for enhanced airflow
Others No rear window
Door Design
Hoklartherm Riga Dutch barn-style split doors provide flexible ventilation while helping keep animals out
Others Single full door only
Foundation System
Hoklartherm Riga 5-inch foundation anchoring system for superior structural stability
Others No integrated anchoring system
Commercial Growing
Hoklartherm Riga 16mm polycarbonate option suitable for commercial growing and higher insulation needs
Others 4mm glazing is too thin for serious growing applications
Shutter Ventilation
Hoklartherm Riga Thick glazing allows the installation of shutter ventilation systems in the wall
Others Panels too thin to support shutter ventilation systems
Wind & Snow Load
Hoklartherm Riga Heavy-duty framework engineered to withstand 60+ mph winds and 20+ lb snow load
Others Limited wind and snow load tolerance
Customer Support
Hoklartherm Riga Expert customer service team based on 20+ years of selling and assembling these units, and long-term parts support
Others Limited product knowledge, inconsistent support, and short product life cycles, with no hands-on assembly experience
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Why It Matters

Superior Glazing for Real Insulation

Glazing thickness is one of the most important — and most overlooked — factors in greenhouse performance. The Riga offers 8mm, 10mm, and 16mm twin-wall polycarbonate options, providing dramatically better insulation than the 4mm panels found on most competitors. Thicker glazing means more consistent interior temperatures, lower heating costs in winter, and the ability to grow year-round in colder climates. The 16mm option is especially well-suited for commercial growers or hobbyists who want to extend their season without running a heater around the clock.

Superior Glazing for Real Insulation

Built to Stay Put

A greenhouse is only as good as its foundation and how securely everything holds together. The Riga features a 5-inch anchoring system that locks the structure firmly to the ground, and polycarbonate panels that sit in fixed channels — not clips or snap-in tracks that can pop loose in a storm. Competing models often lack any integrated anchoring and rely on panels that dislodge under high wind. When you invest in a greenhouse, you want it standing after the first serious storm — not scattered across your yard.

Expert Support That Lasts

Buying a greenhouse is a long-term investment, and the support behind it matters as much as the product itself. Exaco's team has over 20 years of hands-on experience selling and assembling Riga greenhouses, which means real answers when you call — not scripted responses from someone who has never touched the product. We also maintain long-term parts availability so you can replace a panel or component years down the road. Many competitors cycle through product lines quickly, leaving customers without support or replacement parts when they need them most.