| (i) |
The design values reflect both the windward
and leeward capacity of the system, with the governing
values listed.
|
| (ii) |
The tie system recommended design load values were
formulated following the procedures of CSA CAN3-A370-04 “Connectors
for Masonry”, ACI/ASCE/TMS/518 and U.B.C. The values
have been corrected to account for test result variation,
and reflect a factor of safety of 2.25 (i.e. 75% of 3.0),
as per Table 3 (A370).
|
| (iii) |
The allowable mortar pull-out or push-out design load
for the V-Tie® embedded at the centerline of 90 mm
(3.5”) brick veneer utilizing Type M, S or N mortar,
exceeds or equals the recommended design loads listed
above.
|
| (iv) |
For the Slotted Rap-Tie tests, “protected drywall” consisted
of Perma-Barrier (W.R. Grace) adhered to 12.7 mm (0.5”)
drywall. Note that this detail is not recommended for
use in high humidity buildings such as swimming pools,
etc.
|
| (v) |
The above design values relate to the capacity of the
FERO tie components. A compatible fastener (or fasteners)
capable of resisting the design loads must be selected.
|
| (vi) |
The above design values are based on test results utilizing
a 127 mm (5”) cavity (102 mm [4”] Slotted
L-Plate and 25 mm [1”] air space), and one fastener
located in the center hole. No insulation was used. Note
that for smaller cavity widths and/or with the addition
of insulation sheathing providing lateral tie support,
increased tie system design loads and reduced tie system
deflections maybe realized.
|
| (vii) |
Maximum recommended spacing reflects the maximum allowable
by CSA-A370-04, ACI/ASCE/TMS/518 and U.B.C. For stud
construction, every vertical stud should contain ties.
Design will ultimately govern spacing.
|
