BILKA T18 profiled (trapezoidal) sheet is light, strong and quick to install. It is suitable for facades, fences, canopies, garages and roofs of light buildings.
The sheet is galvanised steel without a colour coating – a practical, economical choice for utility and technical buildings.
Sheets are cut to your length – send us the dimensions and we will calculate the exact quantity.


Profile height: 18 mm. Total width: 1150 mm, effective (covering) width: 1100 mm.
Tell us when ordering whether the sheets are for a roof or a facade.
| Total width | 1150 mm |
| Effective width | 1100 mm |
| Profile height | 18 mm |
| Nominal thickness (BILKA) | 0.4–0.7 mm |
| Sheet length | to your length, standard modules from 0.5 to 13.5 m |
| Weight | 2–7 kg/m² |
| Minimum pitch | 8° (no cross joints), 14° (with cross joints) |
| Material | hot-dip galvanised steel without colour coating |
| Warranty | 2 years conformity |
| Price | per 1 m² incl. VAT |
Choose the thickness we offer in the product option. Non-standard lengths – after consulting our manager.
On request we produce BILKA T18 sheet with the DRIPSTOP anti-condensation coating – a special felt applied at the factory to the underside of the sheet.
Price: +2.45 € incl. VAT per m² on top of the sheet price. Confirm with our manager.
Base. Sheets are installed on timber battens or a steel structure. Support spacing depends on profile, thickness and load – confirm it with our manager.
Overlap. Adjacent sheets overlap by one rib, against the prevailing wind direction.
Fixing. With self-drilling roofing screws with a rubber (EPDM) washer in the sheet colour. Do not overtighten, so the washer is not deformed.
Details. Ridge, verges, walls and gutters are finished with flashings in the sheet colour.
Pitch. Minimum roof pitch – 8°, with cross joints – 14°.
Cutting: with metal shears or a nibbler – not an angle grinder. Remove the protective film right after installation.
Steel sheet with a hot-dip zinc coating on both sides, without a polyester layer. Zinc protects the steel from corrosion.
T18 profiled sheet Zinc: 2-year conformity warranty.
Zinc sheet has no colour coating, so BILKA gives no colour and corrosion warranty.

Delivery throughout Bulgaria. ROOFER arranges transport to your site. Sheet-length restrictions apply – confirm the permitted dimensions with our manager before ordering.
Unloading. The customer arranges unloading. For long sheets plan for at least 2–3 people. Carry sheets on edge and never drag them.
Inspection on arrival. Check the products against the delivery documents and look for visible damage or missing items.
Storage. Store the sheets in a dry, ventilated place on stable supports above the ground, and keep moisture from collecting between them.
Card: Pay at the ROOFER office.
Bank transfer: Payment by bank transfer is available.
Company invoice: We issue an invoice using your company’s billing details.
Cash: We issue a fiscal receipt.
Call us on 088 939 2000 or write to us – we will calculate the sheets, flashings and fasteners for your project.
Contact us| Metal characteristics | ||
| Unit of measurement | m2 | |
| The total height | 18 mm | |
| Product thickness | 0.35 mm | |
| Coating | Zinc | |
| Producing | BILKA | |
| Guarantee | 2 years | |
| Overall width | 1150 mm | |
| Effective coverage width | 1100 mm | |
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