subsill

subsill

1. A subsidiary sill member fitted to a window frame; serves as a stop for screens; causes water to drip farther away from the wall surface; also called a sill drip molding.
2. A subsidiary doorsill which is fixed to the groundsill.
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References in periodicals archive ?
Some durability features shown in Figure 1 include subsill pan flashings under all windows, and ventilated rainscreen cladding.
This material has successfully performed in the subsill of the Andersen(R) Frenchwood(R) Patio Door for nearly two years.
Andersen Corporation (Bayport, Minnesota) began producing wood fiber-reinforced PVC subsills for French doors in 1993.
which employs the material in its exterior door subsills and rails--areas where plastic adds desirable moisture resistance and dimensional stability.