A chicken coop roof has to handle ammonia, summer heat and condensation. ASA PVC sheets do not rust in ammonia, keep the space about 6 – 8 °C cooler than bare metal and are quieter in rain. For backyard coops, add one translucent sheet for light; for commercial houses, about 5 – 10% of the roof. Use stainless screws.
Why do coop roofs fail?
Ammonia from droppings rises with warm air and condenses on the underside of the roof at night. It eats the zinc on steel roofing and screws. Drips of that condensation also wet the bedding.

ASA PVC roof on an animal building
Coop roof checklist
- ASA PVC sheets, 2.5 – 3.0 mm, so the roof cannot rust.
- Stainless screws with sealing washers and caps, through the top of the rib.
- Ventilation at the eaves and ridge to carry ammonia and moisture out.
- A translucent sheet for daylight, kept away from the roosts to avoid hot spots.
How many screws?
About 4 – 5 per square meter, which is roughly one screw every 2 – 2.7 square feet, with extra along the edges.
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
What is the best roofing for a chicken coop?
A rust-free sheet such as ASA PVC with stainless screws and good ventilation.
Should a coop roof have clear panels?
One or two for light; keep them away from roosts to avoid heat.
Does ammonia damage PVC roofing?
It does not rust PVC the way it rusts steel.
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.

