In Laos, where the rainy season runs roughly from May to October and the hot season peaks in April, ASA/PVC roofing sheets are quieter and cooler than thin metal sheets: rain noise drops by about 80% and the space under the roof is about 6 – 8 °C cooler. They also cannot rust. Metal sheets cost less per metre and span wider purlin gaps.
What does each sheet do in Lao weather?
| Issue | ASA/PVC sheet | Metal sheet |
|---|---|---|
| Monsoon rain noise | About 80% quieter | Loud without insulation |
| Heat in April | About 6 – 8 °C cooler underneath | Hot without insulation |
| Rust | None | Starts at screw holes and laps |
| Colour | Rated 30 years by Santiago | Depends on the paint |
| Price per metre | Higher | Lower |
Santiago 5-wave ASA/PVC roofing sheet
Which buildings in Laos benefit most?
- Houses and guesthouses where people sleep under the roof and rain noise matters.
- Shops and restaurants with open kitchens, where heat builds up.
- Poultry and pig farms, where ammonia rusts steel.
- Rice and fertiliser stores, where fertiliser dust corrodes metal.
Which profile should I choose?
The 5-wave sheet (1.0 m cover, 32 mm ribs) is the usual choice for houses. For long warehouse roofs in heavy rain, the 6-wave sheet has the deepest 34 mm ribs. Thickness should be 2.5 – 3.0 mm; Santiago gives a 10-year warranty on these thicknesses.
Importing to Laos? Delivery by truck from Vietnam, minimum one 40 ft load (about 5,000 m), production about 5 days, Form D included: importer and distributor guide.
Santiago – a leading exporter of ASA/PVC roofing from Vietnam
Santiago roofing is produced and loaded into containers at our factory in Vietnam. It has been exported to India since 2023, Thailand since 2024 and the USA since 2025. Every export shipment comes with a commercial invoice, packing list, bill of lading and a certificate of origin (C/O) issued by Vietnam's Ministry of Industry and Trade, which importers use to claim the duty preference of their trade agreement.
| Item | Details |
|---|---|
| HS code | 3925.90.00 (ASA/PVC roofing sheets) |
| Certificate of origin | Form D (ASEAN), Form AI (India), Form AK / VK (Korea), Form AJ / VJ (Japan), Form VC (Chile), CPTPP proof of origin |
| Shipped from | Vietnam, by container |
Certificate of origin Form AI (ASEAN–India) for Santiago ASA/PVC roofing sheets, HS 39259000, certified on 24 September 2026. Buyer details are hidden.
The Santiago team beside a loaded export container at the factory, November 2024
Loading Santiago roof tiles into an export container
Frequently asked questions
Are plastic roofing sheets good for the Lao rainy season?
Yes. ASA/PVC sheets are about 80% quieter than metal in heavy rain and do not rust.
Which is cheaper in Laos, PVC or metal sheets?
Thin metal sheets are cheaper per metre. ASA/PVC costs more at purchase but does not rust, which matters near farms and stores.
What thickness should I order?
2.5 or 3.0 mm, covered by Santiago's 10-year warranty.
Related products: ASA/PVC 5 waves · 6 waves · 11 waves · ASA/PVC roof tile · Skylight sheets
Contact Santiago: Santiago Import Export Co., Ltd, Vietnam. WhatsApp +84 935 391 495 (Mr. Quyen), hotline +84 965 437 316 (Mrs. Ly), email salessantiagoroofing@gmail.com.
Updated October 2026.
