7
Step A7
Looking on a standard installation, which is limited to
areas with a basic wind speed of not more than 90
mph, in
a low rise building (max. 60
'
roof height), Exposures B or C
and a non critical status. Fasteners locations should start
about 4
"
from the interior edge, drill holes for the
anchorage devices to connect the frame to the opening
at a spacing of not more than every 16
"
along the head
jamb and the sill. On the head jamb and sill an additional
fastener should be placed at the meeting point of panels
in the closed position and anchorage points every 4
"
in
the stacking area on either side. The spacing of the side
jamb should be about 14
"
starting at the bottom, using an
extra screw at the top.
For installation that are beyond
the above limitations, a structural engineer should
be consulted for specific fastening requirements. For
Florida installations, please see Appendix B for specific
installation requirements.
Use appropriate screws or other equivalent anchorage
devices depending on the adjacent substrate material and
construction. Make sure they are corrosion resistant.
Anchorage devices should penetrate or hold sufficiently
to the opening to withstand necessary structural loading.
Generally, for wood frame use #14 (1/4
"
diameter) wood
screws with 2- 1/2
"
minimum embedment, for concrete
with a minimum compressive strength of 3,200 psi use
3/16
"
diameter ITW Tapcons (concrete screws) with
1-1/4
"
min. embedment. For masonry use 1/4
"
diameter
ITW Tapcons (masonry screws) with 1-1/4
"
embedment.
Standard installation into light gage steel substrates with
a minimum of 18 gage (0.0451
"
thick) should have 1/4
"
diameter type 410 stainless steel self drilling screws. Into
structural steel substrates thicker than 1/4
"
should be
predrilled and 1/4
"
diameter SAE Grade 2 bolts can be
used. Another option is to use type 410 stainless steel self
drilling screws. For this option first drill small pilot holes.
Make sure that the screw head with washer (if any) is
small enough to fit inside the slot in the middle of the
head jamb and sill; otherwise, it will interfere with the
rolling of the running carriages.
Make sure that the frame is level, plumb and square at
all points. There should be no unevenness or bowing.
If, for any reason, the floor is not level, shim with plastic
horseshoe shims to the highest point of the floor,
provided there is still enough clearance at the top. Place
plastic, horseshoe type shims tightly at every fixing point
between the frame profile and rough opening.
Use hard
plastic horseshoe shims only.
DIAGRAM 3:
SUGGESTED FRAME FASTENING POINTS
A = About 4
"
from the interior edge.
B = Distance about 16
"
, except at the stacking area on
one or both sides where spacing should be about
4
"
.
Plus extra screws at meeting point of panels.
C = Distance about 14
"
from the bottom using extra screw
at top.
See Appendix B for Florida installations. Step A8.
NANAWALL SL45 OWNER’S MANUAL
