PO Greenhouse Film for Rose Growers on the Bogotá Plateau, Colombia
2026-09-14
Customer Case · Greenhouse Film
PO Greenhouse Film for Rose Growers on the Bogotá Plateau, Colombia
At 2,600 meters on the equator, roses face a rare combination: fierce high-altitude UV and cool nights. PO greenhouse film with anti-drip answers both — protecting petals from condensation and the film itself from years of ultraviolet punishment.
📍 Cundinamarca, Colombia🌹 Roses🏔️ 2,600 m Altitude💧 Anti-Drip
Case at a Glance
Quick Facts
Region & climateSabana de Bogotá, Colombia — equatorial sun at 2,600 m altitude: very high UV with cool nights year-round.
PartnerA rose farm exporting stems to North American and European markets.
Trial scopePO greenhouse film, high-UV package, with anti-drip treatment on the inner layer.
Trigger eventCondensation drips were spotting petals and feeding botrytis — the difference between export grade and local grade.
OutcomeDrier canopies, cleaner petals, and a covering expected to hold performance for 3–5 years under extreme UV.
Why it workedAnti-drip moves condensation to the gutters; the multi-layer UV package is built for altitude-intensified sunlight.
Background: Export Roses Under a Persistent Climate
The Bogotá plateau is one of the world’s great flower regions, and its climate is the reason: near-constant day length and mild temperatures mean roses produce stems year-round. But the same plateau geography creates two problems the crop can’t ignore. At 2,600 meters, the equatorial sun arrives with far more UV than at sea level — and cool nights mean warm, humid air condenses on the film above the crop every night of the year.
For a rose farm, that condensation is not a nuisance; it is the grade. A drip landing on a developing bud causes spotting, and humidity lingering in the canopy feeds botrytis — either one downgrades stems from export quality. The farm was covering with conventional film and accepting the replacement cycle that came with it. What it wanted was a covering that kept the canopy dry and didn’t surrender to the UV.
The Upgrade: PO Film with High-Altitude UV Package
The change at a glance
Light transmission
high-clarity PO layers
90%
UV-stabilized lifespan
package sized to altitude UV index
3–5 yr
Anti-drip treatment
condensation runs off, petals stay dry
Included
Heat retention
thermal layers hold night temperature
Good
What We Supplied
PO Film, High-UV Package
Co-extruded PO film with a stabilizer package selected against the plateau’s altitude-intensified UV — rated for 3–5 years of service in conditions that age ordinary film far faster.
Anti-Drip Inner Layer
The anti-drip effect lives in an inner co-extruded layer: nightly condensation spreads into a water film and runs to the gutters instead of dripping onto buds and leaves.
Thermal Performance
Thermal layers reflect part of the night’s heat back into the house, softening the drop between plateau evenings and protecting stem development.
What Changed in the Houses
The first weeks made the difference visible: mornings no longer started with water dripping from the roof onto the crop. Petal spotting from condensation fell, and the humidity film that botrytis needs had one less place to form. With light transmission at 90% and a stabilizer package built for the altitude, the farm now expects years of service from a covering it used to re-think every year or two.
Comparison of conventional film vs PO anti-drip film in Colombian rose greenhouses
Factor
Conventional covering
PO film, high-UV + anti-drip
Nightly condensation
Drips onto buds and leaves
Runs to the gutters
Petal spotting & botrytis pressure
Recurring grade losses
Reduced with drier canopy
Light transmission
Drops as film ages
90%, holds through lifespan
UV lifespan at altitude
Short, UV-accelerated aging
3–5 years, package matched to UV index
Night temperature
Full radiative loss
Thermal layers hold heat
Replacement frequency
Every 1–2 years
Every 3–5 years
Performance figures are manufacturer specifications for PO film with high-UV stabilizer package; field results vary with local conditions and installation quality.
Why This Approach Worked
💧
Grade protection starts dry
For export roses, the condensation problem is a revenue problem. Anti-drip film attacks spotting and botrytis at their shared source — water where it shouldn’t be.
☀️
Stabilized for altitude
UV intensity climbs with elevation. A package matched to the plateau’s index is what turns a 3–5 year claim into a realistic service life.
🌡️
Nights handled too
Thermal layers hold part of the day’s heat through cool plateau nights, supporting steady stem development without additional infrastructure.
Where the Farm Is Now
PO film is becoming the standard covering across the farm’s houses, replaced section by section on the farm’s own schedule rather than the film’s failures. Orders ship factory-direct in 1000 kg MOQ per specification with a typical lead time of 30+ days, with export documentation for Colombian customs. Browse our PO greenhouse film or talk to our export team about a trial house.
Quick Answers
Greenhouse Film FAQ
UV intensity increases with elevation — at 2,600 m on the equator, the film receives significantly more ultraviolet load than at sea level. Without a stabilizer package matched to that index, film ages far faster than its rated life.
Anti-drip film stops droplets from forming on the underside. Condensation spreads into a thin water film and runs to the gutters — so no drips land on petals to cause spotting, and the canopy stays drier, which is what botrytis needs to establish.
With a stabilizer package selected against your local UV index, PO film is rated for 3–5 years of service. We quote the guarantee against measured UV conditions, which is the honest way to promise life at altitude.
Yes — PO film’s thermal layers reflect part of the infrared heat back into the house overnight, softening the temperature drop. For cold-night regions where insulation is the main bottleneck, EVA film is the stronger specialist; PO balances insulation with lifespan and anti-drip.
MOQ is 1000 kg per specification, typical production lead time is 30+ days, and free samples are available for a trial house. We ship factory-direct with the export documentation Colombian importers need.
Either. Most flower farms convert section by section as old covering reaches end of life — ordering by house keeps working capital in step with the transition. Rolls are produced to your house dimensions, up to 16 m wide.
Yes — that’s the recommended path. Free samples and a trial house let you compare condensation, petal quality and inside temperature against your current covering for a full production cycle before converting the farm.
