Frequently Asked Questions
Straight answers on ASA synthetic resin roof tiles - structure, sizes, colours, performance, installation, samples and agency terms.
What is an ASA synthetic resin roof tile?
ASA stands for Acrylonitrile Styrene Acrylate. It is a co-extruded roofing sheet with a weather-resistant ASA surface layer over an anti-corrosion PVC base layer, chosen for its durability, clean tiled appearance and superior weather resistance. It keeps a traditional tiled profile but is light, wide and low-maintenance. Our standard sheet is 2.5mm thick and 1050mm wide, with a 960mm effective width after laps. Hengyang Stan Trading Development Co., Ltd manufactures it in its own Hunan factory and exports it directly, so specification, colour and accessories come from one source.
What are the tile layers made of?
The top layer is ASA, an imported ultra-high weather-resistance resin that protects colour and surface under long UV exposure, humidity and hot-cold cycles. The base layer is anti-corrosion PVC, which provides strength and chemical resistance. The two layers are fused during co-extrusion in a single pass, not glued together afterwards. That is why the surface performs as part of the sheet itself, and the finished tile contains no asbestos and no radioactive elements.
What sizes and thickness are available?
Standard thickness is 2.5mm, with 3.0mm available on request. Total width is 1050mm and effective width is 960mm after the one-wave side lap. Wave pitch is 160mm, wave height is 30mm and step pitch is 219mm. Length is custom cut to order, always in multiples of the 219mm step pitch so end joints land correctly. Purlins are set at 660mm spacing, matching the tested support span for load bearing.
What lengths can you produce?
Length is customised to your roof. Sheets are cut to order in multiples of the 219mm step pitch, so you order the slope length you need instead of a fixed stock size. The longest single sheet that fits a 20ft container is about 5.8m, and about 11.8m for a 40ft container. Tell us your slope lengths with your enquiry and we will confirm the cutting plan and sheet count for your order.
Which colours are stocked, and can I customise colour?
Six standard colours are kept in stock, including Brick Red, Maroon, Sea Blue, Deep Blue and Golden Gray from the standard colour card. Ridge and accessory pieces are supplied in the same colour range for a matched roof. Large orders can be customised to an agreed colour card. Batch colour difference is strictly controlled and every batch is colour-checked before release, so repeat orders match earlier deliveries as closely as production allows.
How long do the tiles last, and do they fade?
The design service life is 30 years. In normal outdoor use the tiles are rated for 20 years without fading, thanks to the imported ultra-weatherable ASA surface, which stays stable under long-term UV, humidity and temperature cycling. Every production batch is inspected for thickness, colour and strength before it leaves the factory. Correct installation matters too: pre-drilled fixings that allow thermal movement protect the sheet throughout its service life.
Are the tiles fire resistant?
The tile is made of flame-retardant material, V-0 grade. Please read that correctly: V-0 is a material-level flammability rating for the sheet itself. It is not a claim that a finished roof satisfies the building fire code of any country, because roof fire requirements vary by country and building type. Before ordering, check the requirement that applies to your project with your local authority, and tell us what documentation your market needs.
Are ASA resin tiles waterproof?
Yes. The resin material is dense and does not absorb water, unlike porous traditional tiles. The sheet profile sheds rain along its steps, and the 960mm effective width is 45 percent wider than traditional tiles, which means fewer side joints across the same roof - and joints are where leaks usually start. Waterproofing still depends on correct laps and ridge fitting: one full wave per side lap and properly finished ridge joints, as set out in our installation guidance.
Is ASA suitable for outdoor use?
Yes - the tile is engineered for permanent outdoor roofing. The ASA surface resists UV, rain, snow and temperature extremes while holding its colour, and the sheet body resists acid, alkali and salt corrosion. It is impact resistant (a 1kg steel ball dropped from 3m causes no cracking), its smooth dense surface self-cleans in rain, and it needs no painting or sealing. That combination is why it is specified for houses, factories and warehouses in hot, humid and coastal climates.
Do the tiles insulate against heat and noise?
Thermal conductivity is 0.325 W/m.K, about 1/310 of clay tile, 1/5 of cement tile and 1/2000 of 0.5mm colour steel tile, so far less heat passes through the sheet itself. The tile also absorbs noise under heavy rain and strong wind, which makes interiors noticeably quieter than under thin metal roofing. Together these two properties are why the tile suits houses, warehouses and factories in hot, rainy climates.
How are the tiles installed?
Fix purlins at 660mm spacing - square tube 60 x 40 x 3mm, C-channel 100 x 50 x 20 x 3mm or anti-corrosion wood 60 x 40mm. Lay main tiles from bottom to top, against the prevailing wind, working both slopes together, with one wave of side lap. Pre-drill every fixing hole 2mm larger than the shank and use 6.3mm self-tapping screws. Cut the first main ridge section, and saw ridge joints flush.
What installation support is provided for first-time buyers?
You do not need experience with this material. We provide an installation guide document and video with your order, covering purlin layout at 660mm spacing, lapping, pre-drilling and ridge finishing - the same method set out on our installation page. For project and agency orders we can also prepare a tile layout drawing and a full accessory list, so your crew knows exactly what goes where before the container arrives.
Which accessories are available?
Six standard items in the same material and colour range: the main tile at 1050mm (960mm effective), main ridge tile at 1050mm (960mm effective), tilted ridge tile at 1050mm (1020mm effective), the end of tilted ridge tile at 150mm, a two-way ridge at 180 x 180mm and a three-way ridge at 280 x 280 x 320mm. With these pieces, single-slope, double-slope, four-slope and special-shaped roofs can all be finished without custom folding.
Can I get samples and a colour card?
Yes - colour cards and samples are available on request. Contact us via WhatsApp or email, tell us your market and the specification you are considering (2.5mm standard or 3.0mm, and the colours you want to check), and we will confirm the sample arrangement with our reply. Checking a physical sample first is the right way to verify the ASA surface, thickness and colour before a container order.
What is the delivery time?
Production takes 15-25 days after the order is confirmed. For Pakistan DDP orders, add sea freight of about 20-28 days and 3-5 days for customs clearance as a reference timeline. For other destinations, total lead time depends on the route and port, and we confirm it in writing with your quotation before you commit.
Do you offer a warranty for the products?
Yes. We offer a 10- to 20-year warranty on our ASA synthetic resin roof tiles.
How do I order, or become an agent?
Send an enquiry with roof size, colour and destination; we reply with a quotation and lead time within 24 hours, then confirm samples, then produce and ship. Agents join at two tiers: provincial agents from 4,000 sqm a year and city agents from 2,800 sqm a year, with exclusive territory, price protection and rebates. Priced tiers are published for Pakistan DDP; for other markets, contact us for regional landed pricing.
Request a Quotation Within 24 Hours
Send your roof size, colour and destination port. We reply with pricing, lead time and a full accessory list within 24 hours.
Chat on WhatsApp: +86 191 6460 1883 Email Us: sam@stan-trading.com