4. No drafts, no energy loss
Airtightness is ensured by triple or quadruple weather stripping (depending on window model).
Air, dust and dirt infiltration are virtually eliminated.
Result: greater comfort—and lower utility bills.
Frame provision prevents the crushing of the bubble weather strip
5. Multi-beneficial frames
The multi-chamber profiles have more chambers than any competing product. Transition from hot to cold inside the structure is gradual. Our system provides superior thermal insulation—and the frame is distortion-proof. Multiple air chambers provide excellent sound reduction.