Corrugated Iron vs. Bondek: Which is Better for Roofing?

Choosing the right roofing material is essential to ensure durability, strength, and cost efficiency in a construction. Two materials that are often compared are corrugated iron and bondek. So, which one is better for a roof? Check out the differences below.

1. Material and Structure

Corrugated Iron

• Made of zinc, aluminum, or galvanized.
• Has a wavy shape that helps in the drainage of rainwater.
• Often used for roofs of simple buildings such as houses, warehouses, or factories.

Bondek

• Made of stronger galvanized steel.
• Usually used as permanent formwork for concrete roof casting.
• Although more often used as flooring, bondek can also be used as a roof, especially for multi-storey buildings.

2. Durability and Durability

Corrugated Iron

• Susceptible to rust, especially if often exposed to rainwater and moisture.
• Can last 5-10 years, depending on maintenance.
• More easily dented or perforated if hit hard.

Bondek

• More resistant to rust and corrosion because it is galvanized.
• The service life can reach 20 years or more with good maintenance.
• Not easily dented because the structure is stronger.

3. Protection against Heat and Sound

Corrugated Zinc

• Easy to absorb heat, so the room below it can feel hotter.
• When it rains, the sound produced is noisier than bondek.

Bondek

• When combined with concrete, bondek has better heat insulation.
• Dampening the sound of rain is more effective than corrugated zinc.

4. Installation and Cost

Corrugated Zinc

• Easier to install because it is light and flexible.
• Cheaper price, suitable for projects with a limited budget.

Bondek

• Heavier and requires a strong supporting structure, making installation more difficult.
• More expensive, but long-term investment is more profitable.

Which is Better for Roofing?

Choose Corrugated Zinc If:

• You are looking for cheaper and lighter material.
• The roof is only needed for simple buildings such as warehouses or temporary houses.
• No problem with heat or noise when it rains.

Choose Bondek If:

• You want a stronger and more durable roof.
• Want better heat and sound insulation.
• Roofs used for concrete slabs or multi-storey structures.

Both corrugated iron and bondek have their own advantages. If you are looking for a cheap and easy-to-install roof, corrugated iron can be an option. However, if you prioritize durability, strength, and better protection, bondek is a more appropriate solution.

Need Quality Corrugated Iron or Bondek?
PT Intisumber Bajasakti provides various types of roofs for your construction needs.

Contact us now:
📞 Phone: +6221 66675999
🌐 Website: www.intisumberbajasakti.com

Back to List