HomeMy WebLinkAboutLHB Letter 20191125 1
November 25, 2019
Bud Kistner
Pip Printing
11711 N Pennsylvania St #107
Carmel, IN 46032
Re: Existing Pole-Barn Structure at 2430 E. 96th St.
Dear Mr. Kistner,
It is my understanding that you intend to convert the use of the existing pole barn
structure referenced above from an agricultural use to a Class 1 structure. It is also
my understanding that no additions or structural alterations pertain.
Based on the proposed change in use, the Risk Category would change from “IIII” to
“IIIIIIII” in accordance with Table 1604.5 of the International Building Code as adopted
by the Indiana Building Code (“Code”). The change in use has no impact on the
minimum roof live load required by Code. For both Risk Categories IIII and IIIIIIII, the
minimum roof live load required by Code is 20 PSF. Similarly, there is no change in
the ground snow load, pg required by Code. For both Risk Categories IIII and IIIIIIII, the
ground snow load is 20 PSF for Hamilton County. However, the Snow Importance
Factor, IS increases from 0.80 to 1.00 with the change in Risk Category. Offsetting
this, the Thermal Factor, Ct decreases from 1.2 to 1.0 based on the change in use
from an unheated structure to a heated structure. Accounting for the 0.2 increase
in the importance factor and the 0.2 decrease in the thermal factor, the net change
in the sloped roof snow load is negligible.
I have reviewed the drawings and Truss Design Drawing (“TDD”) that you provided
for the existing structure. The TDD indicates that the truss was designed for a
ground snow load of 25 PSF based on the structure’s truss spacing of 9’ on center.
The 25 PSF used in the design of the truss exceeds the 20 PSF ground snow load
specified by the Indiana Building Code for Hamilton County. The TDD also
indicates that the truss was designed for a live load of 20 PSF which is consistent
with the Code requirement.
Based on my review of the drawings and TDD, it is my professional opinion that the
structure complies with the Indiana Building Code structural requirements for a Risk
Category IIIIIIII structure without any need for structural improvements.