MARKET 10 · SOUTHEAST ASIA
Philippines: typhoon wind is the design case, and it decides the anchors.
A Philippine house is designed around wind first. That makes anchor type, bracing and arch spacing the three items a buyer should argue about — not the price per kilo.
In a typhoon market, the cheapest frame is the one that stays up. The conversation should start with the design wind speed and the exposure category, and only then move to span. A 6.2 m house with proper anchors beats an 8 m house with ground screws sized for a garden.
| Item | What to ask | Why |
|---|---|---|
| Design wind | m/s or km/h, code basis | sections and spacing |
| Exposure | coastal / inland / sheltered | bracing |
| Anchors | concrete-in preferred | uplift |
| Bracing | end frames + longitudinal | racking |
| Cover fixing | channel, not clips only | flapping |
Batangas and Manila serve Luzon; Cebu serves the Visayas. For multi-island projects, cutting to bay length and shipping in 20GP can be cheaper overall than 40HQ to one port and a domestic feeder to the others.
Ask for the uplift number
Wind load on a greenhouse roof is often net uplift, not downward pressure. If your engineer gives only a downward figure, ask for the uplift case — it is the one that pulls anchors out.
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