What do tile-effect roof sheets cost, and how do you budget for the whole roof?

Find out whether the supplier charges per square metre of sheet, per square metre of effective cover or per piece. The area in a lap is paid for but does not cover additional roof. Divide a module’s price by its effective cover area before comparing it with a price per square metre.

Compare like steel grades, steel core thicknesses and coatings. Keep prices excluding VAT separate from prices including VAT. Where both are shown, check the rate applied. Use one consistent unit for the sheets, and establish the basis for charging the complete installation in the individual quotation.

The Polish list effective from 28 October 2026 gives PLN 39.35 excluding VAT and PLN 48.41 including VAT per m² of cover for the selected 0.5 mm steel sheet with 25 µm polyester. The list rounded its net and gross columns independently. That is approximately €9.12 and €11.22 respectively, using the shop’s 13 November 2026 conversion of PLN 1 to €0.2317234 throughout this example. Other profiles and finishes can differ.

For the same sheet with a 35 µm matt finish, the list works out at €10.35 excluding VAT and €12.73 including VAT per m² of cover. The 55 µm polyurethane version comes to €13.80 and €16.98 respectively. These catalogue examples use Polish VAT at 23%; they neither describe the whole market nor include delivery, accessories or fitting.

The modular sheet with 25 µm polyester comes to €10.16 excluding VAT or €12.50 including VAT per m² of effective cover. The 35 µm matt version is €11.32 or €13.93. For the 55 µm polyurethane coating the corresponding prices are €14.81 and €18.22 per m² of cover.

Modules cost more per square metre of cover in this example. Cutting losses and labour may still change the order for the finished roof. Smaller sheets are easier to handle on complex slopes; a simple rectangle is worth costing with cut-to-length sheets. Do not assume that this price relationship holds for every roof or product.

Use the dimensions of the slopes and a cutting layout. Multiplying the building footprint by the sheet price overlooks the roof pitch, which increases the area, and the cuts at valleys and hips. The proportion of waste depends on roof geometry, sheet format and laying direction. There is no universally correct allowance.

Suppose the layout calls for 216 m² of effective cover. At the original price of PLN 53.95 per m² including VAT, the sheets cost PLN 11,653.20, or about €2,700.32 when the total is converted before rounding. Multiplying by the rounded euro unit price gives €2,700.00 instead. The quantity illustrates the calculation; on a real roof use the actual module count or sheet lengths, not a fixed waste allowance.

Allow for flashings, ridge caps, fasteners and ventilation accessories, as well as the layers under the sheets, battens, drainage and labour. For replacement work include stripping, waste disposal and any structural repairs. A roof with several dormers can take considerably longer to cover than a plain slope.

Check delivery, unloading, lifting equipment and scaffold access. Long sheets need different handling from small modules. On a small order, delivery can add a sizeable amount per square metre. Ask each contractor to identify what is included and which items must be ordered separately.

Accurate measurement, an efficient cutting layout and a format suited to the roof can reduce cost. The most expensive coating may be unnecessary in a mild environment, while insufficient protection can increase costs during use. Compare a standard and a more protective finish on the same profile.

Do not omit flashings, reduce fixing numbers or change the sheet thickness without checking the design. The saving may be small beside the cost of fixing a leak. Agree the complete scope before work starts: extras left out of the first quotation can overturn an apparently attractive price.

Provide a roof plan, slope lengths, pitches and the building location. Name the preferred profile and coating. Ask for a breakdown of effective cover, sheet count, accessories and delivery. Check the validity period and delivery terms. The manufacturer’s list is a reference point; the price you pay depends on the order.

Reconfirm rates before using these figures for a purchase or a new estimate. They are dated examples, not a seller’s current price promise. The figure that matters for a budget decision is the cost of a complete roof to an agreed specification.