Exaco Riga ‘XL’ Aluminum and Polycarbonate Greenhouse
Premium Professional-Grade Greenhouse Series
The Riga XL greenhouse series offers premium year-round growing spaces with German-made 16mm triple-wall polycarbonate glazing and robust 13-gauge aluminum framing. Featuring automated roof vents, barn-style doors, and superior insulation, these professional-grade greenhouses thrive in challenging climates and heavy snow loads.
Riga XL 5 and XL 7 are special order — call (706) 707-8046 for pricing.
Pick your options and see the installed total. No obligation.
Or order the kit online
- Supplied and installed by HBGreenhouses, with full turnkey options including site visits
- Freight and delivery are quoted separately, based on your location
- Authorized Exaco dealer
- Questions? Call (706) 707-8046 or send us a message
About the Exaco Riga ‘XL’ Aluminum and Polycarbonate Greenhouse
Elevate your growing experience with the Riga XL greenhouse series—an exceptional German-engineered solution for serious gardeners, small-scale commercial growers, and horticultural enthusiasts. The Riga XL combines industrial-strength construction with sophisticated climate control features to create the ultimate growing environment, regardless of the season or weather conditions.
Key Features (common across models)
- German-engineered triple-wall polycarbonate glazing (16mm)
- Durable 13-gauge aluminum frame construction
- Automated roof ventilation system
- Dual barn-style doors with locks (37.5″ W x 74″ H)
- Rust-resistant stainless steel hardware
- Snow-shedding curved wall design
- Year-round growing capability
- 9’10” peak height
- 14′ width standard
- 15-year limited manufacturer warranty
Model Specifications
Riga XL 5
- Length: 16’5″ (5 panels)
- Growing area: 231 sq. ft.
- 4 roof vents with automatic openers
Riga XL 6
- Length: 19’10” (6 panels)
- Growing area: 280 sq. ft.
- 6 roof vents with automatic openers
Riga XL 7
- Length: 23′ (7 panels)
- Growing area: 322 sq. ft.
- 6 roof vents with automatic openers
Riga XL 8
- Length: 26’3″ (8 panels)
- Growing area: 368 sq. ft.
- 6 roof vents with automatic openers
Riga XL 9
- Length: 29’6″ (9 panels)
- Growing area: 413 sq. ft.
- 8 roof vents with automatic openers
Premium Construction & Engineering
Superior Glazing Technology
- 16mm triple-wall polycarbonate provides exceptional insulation (R-value of 2.5)
- Diffused light transmission reduces plant stress and prevents burning
- UV-protected material ensures longevity and consistent performance
- 250 times more impact-resistant than glass
Professional Climate Management
- Temperature-activated automatic vent openers
- Precisely engineered airflow patterns
- Integrated humidity control systems
- Year-round growing capability in all climate zones
Extreme Weather Performance
- Exceptional snow load capacity (40+ lbs/sq. ft.)
- Withstands wind speeds of 100+ mph
- Curved design prevents snow accumulation
- Heavy-duty aluminum framing (13-gauge)
- Marine-grade stainless steel hardware
Accessories Package Options
Enhance your growing experience with our professional accessories package:
- Foundation Frame: Heavy-duty in-ground anchoring system
- Top Shelf: Aluminum propagation shelf (length varies by model, 10″ wide)
- Bottom Shelf: Wide aluminum worktop/display shelf (length varies by model, 25″ wide)
Ideal Applications
- Serious home gardeners and plant enthusiasts
- Small-scale commercial growing operations
- Educational facilities and community gardens
- Research and specialized plant cultivation
- Cold-climate year-round production
Installation Information
Due to the professional-grade nature of the Riga XL greenhouse series, professional installation is highly recommended. Our installation team specializes in these premium structures and ensures perfect setup for optimal performance. Please contact us for installation quotes and scheduling options.
Warranty & Support
Every Riga XL greenhouse includes a comprehensive 15-year limited warranty on the frame and glazing. Our dedicated customer support team has specialized training on these premium structures and is available to assist throughout your ownership experience.
Note: Images shown are representative of the Riga XL series. Actual greenhouse appearance may vary slightly based on the specific model and configuration.
Sizes and floor area
| Model | Footprint | Floor area |
|---|---|---|
| Riga XL 5 | 14ft x 16ft 5in | 231 sq ft |
| Riga XL 6 | 14ft x 19ft 10in | 283 sq ft |
| Riga XL 7 | 14ft x 23ft | 322 sq ft |
| Riga XL 8 | 14ft x 26ft 3in | 368 sq ft |
| Riga XL 9 | 14ft x 29ft 6in | 413 sq ft |
Dimensions are approximate. Price any size with installation in the estimator.
Watch it in action
Questions we hear a lot
Do you install the greenhouse?
Yes. HBGreenhouses supplies and installs the greenhouses we sell, and can build the foundation too. If you would rather install it yourself, you can order the kit alone.
Is shipping included in the price?
No. Freight and delivery are quoted separately, based on your location and delivery needs, after we have talked through your project.
How do I get a total price?
Use the estimator. Choose your model, color, base and upgrades and it updates live, including installation. Foundation, site work and travel are confirmed after a site visit, and the estimate is not a binding quote.
Where do you build?
We are based in Athens, Georgia and build across the Eastern United States.
More answers on the FAQ page.
Related models
See it built
Browse real Riga greenhouses we have installed for customers, with photos from the build.
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Choose your model, color and upgrades in the estimator and watch the total update. Final pricing is confirmed once we have reviewed your project together.
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