Riga Shade Net for 21x30 Riga XL 9 Greenhouses
Aluminet 50% Shade Net for Riga XL 9 Greenhouse
⚠️ Custom Made to Order — Ships in 4–5 Weeks. This shade net is custom manufactured when ordered and cannot be expedited. Please plan accordingly before purchasing.
The Riga XL 9 Aluminet Shade Net is a 50% aluminum reflective shade net designed for exterior installation on the Riga XL 9 greenhouse (14' wide × 29'6" long). The net is sized at 21' wide × 30' long — significantly wider than the greenhouse footprint — so it wraps over the roofline and down both sides for full coverage of the XL series’ wider 14-foot frame. Roof vents remain fully functional with the shade net installed. This is the largest shade net in the Riga series, matching the XL 9’s 413 sq ft growing area.
What’s Included
- 1 × 21' W × 30' L aluminum shade net (Aluminet 50%)
- Taped edges with brass grommets for secure attachment
Specifications
| Material | Aluminet — 50% aluminum reflective shade net |
| Shade Level | 50% — blocks ~50% of solar radiation; allows ~50% light through |
| Net Dimensions | 21 feet wide × 30 feet long |
| Why 21' Wide? | The Riga XL series is 14' wide — the 21' net width wraps over the roofline and down both sides for full coverage |
| Installation | Exterior — draped over the outside of the greenhouse |
| Edge Finish | Taped edges with brass grommets |
| Roof Vent Compatibility | Yes — all 8 roof vents can open normally with net installed |
| Compatible Model | Riga XL 9 (14' wide × 29'6" long — 413 sq ft) |
| SKU | SHADE-NET-ALUMINET-50-21X30 |
| Lead Time | Custom made — ships in 4–5 weeks from order date |
| Price | $599 |
Complete Riga Shade Net Series — Standard & XL
| Compatible Model | Greenhouse Width | Growing Area | Net Dimensions | Price |
|---|---|---|---|---|
| Riga IIIs & III (10'6" long) | 7'8"–9'8" | 81–102 sq ft | 14' W × 10' L | $229 |
| Riga IVs & IV (14' long) | 7'8"–9'8" | 108–135 sq ft | 14' W × 14' L | $279 |
| Riga V (17'6" long) | 9'8" | 165 sq ft | 14' W × 17' L | $299 |
| Riga XL 5 (17' long) | 14' | ~238 sq ft | 21' W × 17' L | $369 |
| Riga XL 6 (19'10" long) | 14' | 280 sq ft | 21' W × 20' L | $449 |
| Riga XL 7 (24' long) | 14' | ~336 sq ft | 21' W × 24' L | $499 |
| Riga XL 8 (27' long) | 14' | ~378 sq ft | 21' W × 27' L | $529 |
| Riga XL 9 (29'6" long) | 14' | 413 sq ft | This net — 21' W × 30' L | $599 |
Standard Riga models (IIs through V) use 14' wide nets. Riga XL models use 21' wide nets to accommodate the XL’s 14-foot greenhouse width. Do not use a standard 14' net on an XL greenhouse — it will not provide adequate side coverage. Always order the net designated for your specific model.
Why Use a Shade Net on a Riga XL 9?
The Riga XL 9 uses 16mm triple-wall polycarbonate glazing with an R/K-value of up to 2.5 — excellent for winter growing. However, the 413 sq ft interior and 14-foot width can still experience significant heat buildup in summer, even with 8 automatic roof openers working at full capacity. The Aluminet shade net reduces solar heat gain by approximately 50%, keeping the interior cooler during peak summer heat while still providing sufficient light for most crops. For a greenhouse of this size, the shade net is particularly valuable — the large glazed surface area means more total solar heat gain than smaller models, and the 8 roof openers alone may not be sufficient to maintain comfortable growing temperatures on the hottest days.
Frequently Asked Questions
Why is this net 21' wide when the Riga XL 9 is only 14' wide?
The 21' width is intentional — the net is designed to drape over the peak of the 14-foot-wide roof and hang down both sides of the greenhouse. The XL series is significantly wider than the standard Riga models, requiring a wider net to achieve the same full-coverage wrap. The extra width ensures the net reaches far enough down the sides to be secured with the brass grommets.
The Riga XL 9 has 8 automatic roof openers — do I still need a shade net?
The 8 automatic roof openers provide excellent ventilation, but ventilation alone cannot fully offset solar heat gain on the hottest days. The shade net reduces the amount of solar radiation entering the greenhouse in the first place, which is more effective than trying to exhaust heat after it has already built up inside. For a 413 sq ft greenhouse with a large glazed surface area, combining shade netting with roof ventilation provides the best summer temperature management.
Can I still open all 8 roof vents with the shade net installed?
Yes — the shade net is designed to allow all roof vents to open normally. The mesh is flexible and the net is positioned so that each roof window can push through or lift the net as it opens. All 8 automatic openers remain fully functional with the shade net installed.
Is this shade net for interior or exterior use?
Exterior use only. The net is draped over the outside of the greenhouse. Exterior installation is more effective at reducing heat gain because it intercepts solar radiation before it enters the polycarbonate panels, rather than after.
How long does it take to receive this shade net?
This shade net is custom manufactured when ordered. Lead time is 4–5 weeks from the order date. It cannot be expedited. If you need the net for a specific date (e.g., before summer heat peaks), order at least 5–6 weeks in advance.
How is the shade net attached to the greenhouse?
The net has taped edges with brass grommets for secure attachment. You can use bungee cords, rope, or zip ties through the grommets to secure the net to the greenhouse frame. The grommets are positioned around the perimeter of the net for even attachment points.