Metal profile for roofing Corrugated metal is one of the most popular roofing materials in residential, industrial, and utility buildings. It combines strength, durability, aesthetic appeal, and affordability. However, when choosing corrugated metal, it's important to consider not only the color and thickness of the metal, but also the profile type, protective coating, and the correct number of sheets for your roof.

In this article we will tell you, How to choose metal profiles for a roof and how to calculate a roof without errors.

🔹 Types of metal roofing profiles

Metal profiles are made from sheet steel with a zinc or polymer coating. Depending on their intended purpose, they are classified as:

Wall (C)
- Used for facades and fences.
- Not recommended for roofing as it has low load-bearing capacity.
Roofing (NS)
- Universal option: suitable for walls and roofs.
- It is strong enough for most roofing applications.
Bearing (H)
- It is used for roofs with heavy loads, industrial buildings and warehouses.
- It is characterized by high rigidity and greater metal thickness.

👉 For a private home, the most commonly used grades of corrugated sheets are NS And N.

📐 Key parameters when choosing corrugated sheets

Metal thickness
- Optimal for roof: 0.45–0.6 mm.
- A thinner option (0.35–0.4 mm) is cheaper, but less durable.
Profile height (corrugations)
- The higher the wave, the stronger the sheet.
- For a pitched roof, 20–35 mm is sufficient, for industrial facilities – from 44 mm.
Coating
- Galvanized - a budget option, but it corrodes faster.
- Polyester — a popular solution: protection from moisture and ultraviolet rays, bright color.
- Pural or polyurethane — premium coating, resistant to fading and mechanical damage.
Color and design
- The metal profile is available in different shades according to the RAL catalogue.
- You can choose between a matte or glossy finish.

📊 How to calculate the number of metal sheets for a roof

To avoid overspending or underspending on material, it is important to correctly calculate the roof area and the number of sheets.

1. Determine the slope area

For a rectangular slope: S = length × width.
For a gable roof: the area of each slope is calculated separately and added together.
For complex roofs, the calculation is carried out in parts.

2. Consider the working width of the sheet

The corrugated sheet has full width And working width (taking into account the overlap).
For example:
- full width - 1150 mm;
- working width - 1100 mm.

👉 For calculations we use only the working width.

3. Formula for calculating the number of sheets

$\frac{Ramp Area}{Sheet Length \times Working Width}$

4. Material stock

Add 5–10% stock for trimming and overlapping.

✅ Calculation example

Gable roof, dimensions of each slope: length - 8 m, width - 5 m.

Area of one slope = 8 × 5 = 40 m².
Area of two slopes = 40 × 2 = 80 m².
Size of corrugated sheet: length – 5 m, working width – 1.1 m.
- Area of one sheet = 5 × 1.1 = 5.5 m².
Number of sheets = 80 ÷ 5.5 ≈ 15 pcs.
With a reserve (10%) - 17 sheets.

🏗 Advantages of metal roofing

💪 High strength and load resistance.
🛡 Protection from corrosion and weather conditions.
🎨 Wide range of colors.
⚡ Easy to install.
💰 Affordable price.

📞 Where can I buy metal roofing profiles in Ukraine?

Company Art-Metal offers:

roofing metal profiles of any grade (C, NS, H);
galvanized and polymer coated;
cutting sheets to the required size;
delivery throughout Ukraine.

📑 We work with VAT
🚚 Fast delivery to Kyiv, Dnipro, Kharkiv, and other cities
🔧 Customized quote for your project

✨ Summary

Metal profile for roofing — is a reliable and practical solution for residential and industrial properties. The key is to choose the right profile grade, metal thickness, and protective coating. Accurately calculating the number of sheets will help you save money and avoid unnecessary expenses.