EFCO 403 Series Roto Vent for Storefront - Manual (Page 8)

at 1/4 points.
1/4" dia. weep holes
to protect the exposed surface of the sill member when drilling
the weep holes.
STEP 2) Drill 1/4" diameter weep holes flush with the interior surface of
the sill member. Locate weep holes at quarter points. Take care
STEP 1)
during installation.
Notch the ends of the tube retainer to clear the shear block
EXPOSED
INTERIOR
ATTACHMENT
SECTION V -
PART PREPARATION &
1.313
9953
9959
EXTERIOR
PAGE 7