- Solid wooden frame, roughened before shaping, screwed and glued.
- Aluminum extruded outside assembled by screws at the four corners
- This window model has three weather strippers, two of which have compression for optimal energy efficiency
- Sealed unit with double sealer
- High performance midsole
- Energy efficient Low-E Argon thermos
- Meets the requirements of NAFS-08 or CSA A440 Canadian supplement