Polyhouse Systems

Naturally ventilated, for most Indian sites and most crops. A well-designed naturally ventilated house with adequate ridge height and vent area holds a workable climate through most of the year with no running cost. Fan-pad adds real cooling capacity but also adds electricity cost, maintenance, and a dependency on power supply that many rural sites cannot rely on. Fan-pad is justified for genuinely high-value floriculture in hot districts where the crop pays for it. If a supplier is pushing fan-pad for a vegetable crop, ask them to show you the running cost against the yield gain.

Foundation depth, hoop spacing and bracing, designed against your site exposure. A polyhouse is a large, light structure with enormous sail area, and Indian pre-monsoon squalls are violent and localised. Structures built to generic specifications go over in them — we see it every year. This is why we ask about your site before quoting rather than after. A structure quoted from a price list has not been designed for your wind zone, and the saving disappears the first time it fails.

A UV-stabilised film at appropriate thickness should give several seasons. The variables are the UV package, the thickness, and how well it was installed — film that flaps against the frame abrades and fails early regardless of grade. Film is a consumable and should be budgeted as a recurring cost from the outset, not treated as a surprise. Anyone telling you the film lasts as long as the structure is not being straight with you.

Yes, and it is often the sensible approach — but only if the initial layout is designed for it. Bay-based structures extend along their length if the foundation, orientation and drainage were planned for the final footprint. Retrofitting expansion onto a structure that was not planned for it usually means compromised drainage or awkward orientation. Tell us your eventual ambition at design stage even if you are building a fraction of it now.

We cannot answer that honestly without knowing your site, span, crop and specification, and any number quoted before those conversations is a marketing figure rather than a price. Cost is driven by span, height, ventilation type, wind-load requirement, foundation conditions and covering specification. What we can tell you is that the cheapest quote you receive is usually cheap because it has skipped the wind-loading engineering — and that is the one that fails. Send us your site details and we will quote against a documented specification.