3
©2020 Babcock-Davis, Inc.
REV 8/2020
Roof Hatch, Smoke Vent and Floor Door Safety Railings
Installation, Operation & Maintenance
Model(s): BSRA/BSRV/BSRT
6.
Tighten all mounting brackets to the counterflashing making sure that all brackets are square and level
with each other.
7.
Set torque to 29 ft/lbs.
8.
Insert the 35” upright post (60) into the installed brackets and insert the 3/8”-16 x 3” bolts (70).
Tighten the bolts using the 3/8”-16 nuts (20).
9.
Repeat for all corner posts.
Center Post,
figure 4
Center posts are included for roof hatch lengths greater than 8’.
Before installation, note the position of the door. The center post should
be placed opposite the hinge side of the roof hatch or floor door to protect
the opening.
1.
Temporarily assemble center brackets using temporary assembly
holes in bracket halves and a 3/8”-16 nut and bolt. (See Figure 2 for example with corner brackets)
2.
Assemble top rail and center post. Temporarily attach it to corner posts to verify location of center
post bracket.
3.
Assure that the bracket is sitting square and level on the counter flashing.
4.
Mark the mounting holes on the counter flash and drill 1/2” diameter holes. Remove 3/8”-16 nut and
bolt from bracket halves and top rail assembly.
5.
Fasten to the center of the counter flashing using 3/8”-16 x 3/4” bolts, washers, and threaded nut
plate.
a.
If mounting holes were drilled, apply roofer’s caulk around hole in counter flashing.
b.
Align and hold the threaded nut plate behind the counter flash.
c.
Screw the 3/8”-16 x 3/4” bolts and washers through the bracket and into the threaded nut
plate.
6.
Tighten all mounting brackets to the counter flashing making sure that all brackets are square and level
with each other.
7.
Set torque to 29ft/lbs.
8.
Insert the 35” upright post into the installed brackets and insert the 3/8”-16 x 3” bolts. Tighten the
bolts using the 3/8”-16 nuts.
9.
Repeat for all center posts.
Figure 4
