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.
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.