A greenhouse cover must balance usable light, heat load and ventilation. The three-layer netting stack — external shade, reflective screen, insect exclusion — specced by crop, climate and structure.
Greenhouse climate control with netting works as three layers, not one product: external shade cloth to cut peak radiation, internal reflective screening to manage light quality and night heat, and insect mesh on vents to keep pests out without choking airflow. Spec them as a system and the house cools without the light starvation that costs yield.
High solar exposure and seasonal heat stress; uneven shade across growing structures; pest-exclusion requirements without sacrificing ventilation; and the procurement problem behind all of them — getting three layers from one factory in one container with consistent resin and UV batches.
| Layer | Product | Working spec | Role |
|---|---|---|---|
| External shade | Shade net | 40–90% shade rate, 40–350 gsm, widths to 12 m | Cuts peak solar load; shade rate matched to crop and radiation |
| Internal screen | Aluminum shade net | 70–95% shade, 80–120 gsm, diffuse reflection | Daytime reflective cooling plus night heat retention |
| Vent exclusion | Insect net | 30–110 gsm, 2–7 mm mesh, widths 1–12 m | Excludes moths, butterflies, beetles and similar-sized pests at vents |
| Criterion | What to decide with us |
|---|---|
| Shade level | Crop light needs, growth stage, season, local radiation — 40–50% typical for fruiting vegetables in hot summers, heavier for nurseries |
| GSM and knit | Installation duty, span, handling and wind exposure — heavier fabric for permanent external use |
| Insect screen | Target pest first: our 2–7 mm mesh covers butterflies, moths and beetles; aphid-scale pests need finer mesh than our standard range — tell us the pest list and we advise honestly |
| Custom fit | Greenhouse bay width, roll direction, joins and anchoring — widths to 12 m reduce seams |
For the GSM side of the decision see the shade net GSM guide; for reflective screens in hot climates, the Gulf greenhouse guide; for percentage selection by crop, the shade percentage guide.
There is no universal percentage. Send your crop, growth stage, site and season — we recommend from local horticultural logic, not a catalog default. Shade rates run 40–90% in production.
Yes — finer apertures restrict ventilation. Screen selection is always a balance between pest exclusion and airflow, which is why we spec by target pest rather than defaulting to the finest mesh.
Yes — that is the standard three-layer setup: external shade, optional reflective screen inside, insect mesh on vents. All three ship in one mixed container.
Crop, region, greenhouse dimensions (length × width × gutter height), preferred shade level, mesh/GSM if known, quantity and destination port — via the contact page or WhatsApp, answered within 24 hours.
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