In what thickness are flashings made?

Flashings are made of different materials and in different thicknesses, depending on the application and project requirements. The most commonly used thicknesses are:

1. Coated steel (galvanized with a coat of paint):

• Thickness: 0.5 mm – 0.7 mm
• It is the most popular material for flashings, such as roof flashings, windbreaks, gutter strips and eaves.

2. Aluminum sheet:

• Thickness: 0.6 mm – 1.0 mm
• Aluminum is used where lightness and corrosion resistance are important, such as around areas exposed to moisture and salinity.

3. Copper sheet:

• Thickness: 0.55 mm – 0.8 mm
• Mainly used in historic or exclusive construction, where appearance and durability are important.

4. Titanium-zinc sheet:

• Thickness: 0.7 mm – 0.8 mm
• Often used in modern structures and on roofs with high aesthetic requirements.

5. Stainless steel (inox):

• Thickness: 0.5 mm – 0.8 mm
• Used where high corrosion resistance and durability are important, such as in industrial facilities.

The choice of thickness depends on:

• Expected load (e.g., wind, snow).
• Type of construction and installation location.
• Aesthetics and durability of the material.

In practice, the most common thickness of flashings in residential construction is 0.5 mm for coated steel sheets.