ASA PVC Roofing Sheet in Thailand: cooler roofs from Vietnam

ASA PVC roofing sheets for Thailand: cooler roofs for the hot season, shipped from Vietnam

10/05/2023

Mr Quyen - Santiago · Editor: Santiago Plastic Roofing · Updated 25/10/2026 · 2 min read

Santiago (Vietnam) has shipped ASA/PVC roofing sheets to Thailand since 2024. In the hot season the space under the roof stays 6–8 °C cooler than under galvanised steel, because PVC conducts heat poorly (under 0.2 W/m·K) (Santiago measurements). Sheets come in Spanish tile, 5, 6 and 11-wave profiles, 2.5 or 3 mm. Minimum order is one 40 ft container, about 5,000 m, to Laem Chabang or Bangkok with Form D.

Contents

1. How much cooler in the hot season?
2. Which profile for which job?
3. Track record in Thailand
4. Strength and durability
5. Ordering
6. Frequently asked questions

สรุป: Santiago ประเทศเวียดนาม ผลิตแผ่นหลังคา ASA/PVC 4 ชั้น ไม่เป็นสนิม ใต้หลังคาเย็นกว่าหลังคาเหล็ก 6–8 °C และเสียงฝนเบากว่าประมาณ 80% ส่งออกไทยตั้งแต่ปี 2024 สั่งขั้นต่ำ 1 ตู้ 40 ฟุต พร้อม Form D ติดต่อ WhatsApp +84 935 391 495

1. How much cooler in the hot season?

From March to May many parts of Thailand pass 38 °C. A metal sheet passes that heat straight down. In Santiago's side-by-side test the air under an ASA/PVC sheet stayed 6–8 °C cooler than under galvanised steel; in a 10-minute heat test the reading was 45.8 °C under the ASA/PVC sheet against 55.2 °C under steel.

ASA PVC roofing sheet in Thailand — ASA/PVC roofing sheets for Thailand

2. Which profile for which job?

Houses and resorts: Spanish tile, 1.05 m wide, 0.96 m cover.
Factories and warehouses: 6-wave (1.06/0.95 m) for stiffness, or 11-wave (1.05/1.00 m).
Farms: 5-wave (1.08/1.00 m), resists ammonia from livestock.

4 layers of ASA PVC roofing sheet — ASA top layer with three PVC layers

Accessories of ASA PVC roofing sheet — Ridge, hip and trim pieces

Loading an export container at the Santiago factory

3. Track record in Thailand

Santiago is a Vietnamese manufacturer and a leading exporter of ASA/PVC roofing sheets, with shipments to India (2023), Thailand (2024) and the United States (2025). Thai buyers can read product pages in Thai on santiagoplastic.com.

4. Strength and durability

Tensile 25.7 MPa, flexural 51.6 MPa (Quatest); a loaded truck drove over a sheet.
0.02% mass change after 24 hours in 10% HCl.
About 80% less rain noise; 30-year colour retention; 10-year warranty.

Advantages of ASA PVC roof sheet — Main advantages of the sheet

Warehouse of ASA PVC roof sheets — Sheets in the warehouse

5. Ordering

One 40 ft container, about 5,000 m, produced and packed in about 5 days. HS code 3925.90.00; Form D for ASEAN preference. Ports: Laem Chabang or Bangkok. FOB quote within 24 hours, CIF within 48 hours; free samples, buyer pays courier.