MODEL
501/502 Our heavy-duty 25GA steel exterior is hot-dipped galvanized with a baked-on
enamel finish for years of maintenance-free beauty.
MODEL
511/512 Optional textured vinyl-backed polystyrene
insulation is bonded to each section to provide quiet, energy-efficient
operation. Calculated R-value: 4.3 provides protection from the elements.
500 Series Features Include:
Heavy-duty
galvanized hardware components
Strong full
width reinforcing struts (1) with 16 ft. door; (3)
with 18 ft. doors
Accurate
torsion or extension spring counterbalance
Traditional
14" x 20" raised panel design or 15" x 42" ranch raised
panel design to compliment any architecture
