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ASA roof tile thickness and size guide

1. Overview

Thickness and size decide three things at once: how the roof performs, how much material a project actually needs, and what a container really carries. ASA synthetic resin roof tiles come in a standard dimension set, but buyers still make two common mistakes - comparing prices on sheets of different thickness, and ordering lengths without respecting the step pitch. This thickness and size guide walks through every dimension of the Stan tile, explains the working difference between the 2.5mm standard and the 3.0mm option, and shows how to turn a roof drawing into an exact order.

2. Standard and Specification

The full standard set is: thickness 2.5mm standard, 3.0mm on request; total width 1050mm; effective width 960mm; wave pitch 160mm; wave height 30mm; step pitch 219mm; length custom cut to order in multiples of the step pitch. The dimension that prices a roof is the effective width, because the 90mm difference between total and effective width is the one-wave side lap. Coverage calculations, sheet counts and container estimates should always be run on 960mm, never on the headline 1050mm figure.

3. Structure and Construction

Dimensions connect directly to structure. The 160mm wave pitch and 30mm wave height form the profile that stiffens the sheet and channels rainwater down the slope in defined paths. The 219mm step pitch gives the tiled appearance and sets the cutting module for length. In construction, the tested support condition is a 660mm purlin spacing, so the sheet, the purlin layout and the load data form one package. Accessories follow the same module: main ridge at 1050mm total and 960mm effective, tilted ridge at 1020mm effective, so ridge counts are calculated on the same basis.

4. Performance and Test Data

The performance figures quoted in the manual belong to the standard specification installed at the standard span. Load bearing: 150kg at a 660mm support span with no cracking or damage. Impact: a 1kg steel ball dropped freely from 3m with no cracking. Choosing 3.0mm instead of 2.5mm adds material through the sheet for buyers who prefer a heavier tile for their market or project type, but it does not change the dimension set, the lap rules or the accessory system. Whichever thickness you choose, confirm it in the order and check it on delivery - thickness is batch-inspected at the factory.

5. Buyer FAQ

Which thickness should I choose? The 2.5mm standard covers the mainstream housing and renovation market and carries the full test dataset at 660mm span; choose 3.0mm where your market expects a heavier sheet. Can length be any size? Any size that is a multiple of 219mm, so end laps and steps align. How do I count sheets? Divide roof width by the 960mm effective width per slope, then match slope length to an ordered length - our layout support does this for you; see installation.

6. Factory Capability

Cut-to-length production is straightforward for Hengyang Stan Trading Development Co., Ltd because the Hunan base runs 13 fully automatic co-extrusion lines with online thickness measurement across a 20,000 sqm site and 15 million sqm of annual capacity. Computer-controlled temperature and automatic batching hold the profile dimensions stable along the sheet, and every batch is inspected for thickness, colour and strength before release. CE and SGS third-party testing available on request. For a buyer, that means the ordered thickness and length module are production-controlled values, not approximations trimmed on site.

7. Conclusion

Order on effective width, choose thickness deliberately, and cut length to the 219mm module: those three habits turn the size guide into an accurate material list and an honest price comparison. The complete dimension table is on the product page, and worked container quantities are in the guide ASA roof tile MOQ and container loading. Send your roof dimensions via trade and contact and we return a layout with sheet and accessory counts.

Related guides

• What is an ASA synthetic resin roof tile?
• ASA vs UPVC roof tiles: what is the difference?
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