Technical Bulletin No. 1 - Joinery
The integrity of the corners of a sash and the jamb is an important engineering solution to ensure the performance of units for years to come, responding to the tightest tolerances required by a multi-point locking system. The construction and the joinery of the sashes and the jambs is executed in the tradition of dowels and coping, providing the strongest connection based on Institut fuer Fenstertechnik in Rosenheim, Germany, the oldest European authority on the design and the related research of the window and door manufacturing industry.
Luxbaum Windows + Doors has developed a joinery system including the corners of the jamb, which avoid the use of mechanical fasteners. The number of these dowels at the corners could amount to ten dowels for the widest sash stile (72148) to rail (72301) connection. A standard double casement window would engage 40 dowels in its construction of jambs and sashes.
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