Grower Support · prepare, check, ask

Greenhouse film decisions, one practical check at a time

Good preparation starts before the covering arrives. Use these seasonal prompts to organize measurements, supplier questions and the people responsible for the work.

Open the seasonal checklist
Grower measuring a film-covered hoop house

Put the covering work on your crop calendar

Before requesting quotes

Make a measurement record

Note the structure width and length, bay arrangement, fixing method and the dimensions of the existing sheet. State ft or m consistently. Distinguish the measured structure from the final cut size; overlaps and attachment allowances should be confirmed with the supplier and installer.

For 6 mil greenhouse plastic, ask whether the quoted thickness is nominal and how tolerance is checked. Do not use thickness as a substitute for a wind-load assessment.

Before replacement day

Check the handling plan

Ask for roll or panel packing dimensions and handling instructions. Identify dry storage, unloading equipment, access around the greenhouse and who checks material on receipt. Record visible damage and label discrepancies before installation under the agreed acceptance procedure.

Seasonal delivery dates are targets until confirmed in the order. Plan a separate discussion about installation weather and safe working methods with your contractor.

Before accepting an alternative

Review the supplier’s evidence

Compare the proposed material, thickness, light transmission, diffusion and condensation features against the request. Ask for the test method and stated conditions, then check a labeled sample where available. Keep the sample reference and data-sheet version with the supplier’s written reply.

A sample can help compare appearance and fit; it does not prove long-term crop performance, structural capacity or a warranty claim for every site.

Covering questions worth asking

Should we choose film, polycarbonate panels or glass?

Compare the existing structure, support spacing, fixing method, thermal and optical needs, handling weight, maintenance access and total installed cost. Flexible film and rigid panels require different installation details; glass needs its own support and breakage assessment. Ask for product-specific evidence instead of treating a material label as a performance guarantee.

Does a light-transmission figure tell the whole story?

No. Ask for the method, sample condition and wavelength basis where supplied, and distinguish total light transmission from diffusion. Dirt, aging, frame shading and installation can alter the actual growing environment. Your crop adviser should review the requirement; this sourcing guidance is not agronomic design.

How should we compare a budget-friendly option?

Keep thickness, roll size, fixing scope, packing, quantity and delivery basis consistent. Separate any change in optical features or warranty terms. Compare material, transport, handling, installation and replacement access together. A premium preference is not a verified supplier grade, and a smaller material price does not establish a lower total cost.

Which documents should accompany the request?

Ask for the proposed product data sheet, packing details, installation guidance and written warranty scope. The relevant project documents depend on the exact covering, frame and US destination. The horticulture reference informs requirement vocabulary; it does not endorse a supplier or validate this site’s engineering capability.

Keep the right people in the discussion

Three conversations to organize

Buyer and sourcing coordinator

Use the purchase requirements form for specifications, quantities, budget preferences and destination. Request clarification of missing quote details.

Supplier and installer

Confirm the exact material, fixing system, handling instructions and responsibility for measuring and fitting the cover.

Local project adviser

Review structural loads, climate-control interfaces and crop conditions. We do not claim a local repair network; identify support responsibilities before placing an order.

Covered greenhouse at the end of the workday

Tell us the next covering decision

Include your open specification questions with the quantity and US destination. We can use that brief to coordinate factory quote requests and compare the stated scope.

Request Factory Quotes