Insulation Effect Of Rolling Shutters

1. The airtightness of the shutter plate closure;

2. The airtightness of the contact part between the shutter plate and the shutter cover;

3. Airtightness at the guide rail;

4. The tightness of the guide rail and the wall;

5. The airtightness of the roller shutter window seat bar and the window sill;

6. Thermal insulation performance of the shutter cover