1. Wood: FAKRO inclined roof window wood using carefully selected high quality Nordic pine, bonded through a layered composite finger-processing technology, profiles, and uses a three-layer vacuum impregnation, the last wood exterior acrylic spray varnish coating. Because the lower corner of the window becomes the site easy to damp rot, this site uses a special process connection, effectively increasing the moisture sealant. 2. lighting area: inclined roof windows lighting the actual window area should be more than 60% area; FAKRO write roof window lighting area of ??62%. 3. In the window closed (no leaks) have ventilation functions: 1): FAKRO inclined roof window in the fully closed state ventilation capacity: 15-20m3 / h 2): FAKRO inclined roof window ajar in the Under the state of the first position ventilation capacity: 100m3 / hour 3): FAKRO inclined roof window ajar in the state of the second position ventilation capacity: 150m3 / hr 4. hollow safety glass: FAKRO inclined roof windows with double steel hollow glass. Specifications 4H + 16A + 4T, middle glass filled with an inert gas (nitrogen), filled with zeolite in the aluminum surrounding the use of butyl rubber, polysulfide sealant. Insulation factor U-value = 1.0W / K. 5. strips: EPDM corner strip material fused together using hot-melt technology, compared with the two sides simply overlap, can be very good to prevent water seepage, and enhance the air-tightness of the windows. 6. Hanging in the shaft: Patented technology allows the sash hanging in Week flipped 180 ° (easier to clean the surface of the window outside), adopted in line with European environmental standards Cr + 3 galvanized, galvanized minimum standards to achieve three requirements (salt spray test 96 hours will not rust). After hanging in the shaft reinforcement design, screw driven into different angles, greatly increasing the robustness of the suspension shaft and sash connection. 7. sash guidance system: In order to use the long term to maintain a good quality and condition, using high-quality materials for manufacturing and product design in more detail in the details of the deal. Inclined roof window sash lower plastic pieces can ensure proper against the window frame, it is mounted on the window frame and the side of the trailer plug is working together. In the process of using the inclined roof window, which can ensure the correct clearance between the sash and the window frame, to prevent deformation of the sash, but such a configuration improves the sealing strip and the sash connection, effectively enhance the inclined roof window tightness. 8. Anti-theft System: FAKRO inclined roof window is only inclined roof window manufacturers by European standard EN13049 safety certification (up to three), and the index means a weight 50KG falling from a height of 450mm in the upper window, the window will will not be broke.