Specs
- 70 mm construction depth
- 5 chambers
- A system of two external seals ensuring a very good tightness, acoustic insulation and thermal insulation. The surfaces of the seals directed with a slope of 15 degrees (the same as the profiles) - allow excellent drainage of water and dirt.
- The thickness of the external walls of the profile is 3 mm (with a tolerance of 0.2 mm), which is a parameter that meets the highest RAL standards - "Class A *" (PN-EN 12608)
- Proven steel reinforcements for excellent statics and long-term preservation of window function.