Proposed Modification to
the
Modification #: Section
553.73,
Name: Mo Madani
Address:
E-mail: mo.madani@dca.state.fl.us
Phone:
850-921-2247
Fax: 850-414-8436
Code:
Building
Section #: Chapter 15
Text of Modification [additions underlined;
deletions stricken]:
Section
1502.1 Add new definition of “Aggregate”
AGGREGATE.
In
roofing, crushed stone, crushed slag or water-worn gravel used for surfacing
for roof coverings.
Section
1502.1 Add new definition of “Ballast”
BALLAST.
Ballast
is any item having weight that is used to hold or steady an object. In roofing,
ballast comes in the form of large stones or paver systems or light-weight
interlocking paver systems and is used to provide uplift resistance for roofing
systems that are not adhered or mechanically attached to the roof deck.
1504.8
Gravel and stone. Gravel or stone shall not be used on the roof of a building
located in a hurricane-prone region as defined in Section 1609.2, or on any
other building with a mean roof height exceeding that permitted by Table 1504.8
based on
the
exposure category and basic wind speed at the building site.
1504.8 Aggregate. Aggregate
shall be permitted as roof surfacing when installed in accordance with the HVHZ
requirements as defined in section 1519.12.1
For
SI: 1 foot = 304.8 mm; 1 mile per hour = 0.447 m/s.
a.
Mean roof height in accordance with Section 1609.2.
b.
For intermediate values of basic wind speed, the height associated with the
next
higher value of wind speed shall be used, or direct interpolation is permitted.
c. NP = gravel and stone not permitted for
any roof height.
Fiscal Impact Statement [Provide documentation of the costs and benefits of
the proposed modifications to the code for each of the following entities. Cost data should be accompanied by a list of
assumptions and supporting documentation.
Explain expected benefits.]:
A. Impact to local entity
relative to enforcement of code:
None
B. Impact to building and
property owners relative to cost of compliance with code:
None
C. Impact to industry
relative to cost of compliance with code:
None – Gives manufacturers increased
options
Rationale [Provide
an explanation of why you would like this Proposed Modification to the Florida Building
To amend this section language from the Wind
Mitigation Workgroup discussions
Please explain how the proposed modification meets the
following requirements:
1. Has a reasonable and
substantial connection with the health, safety, and welfare of the general
public:
2. Strengthens or improves
the code, and provides equivalent or better products, methods, or systems of
construction:
3. Does not discriminate
against materials, products, methods, or systems of construction of
demonstrated capabilities:
4. Does not degrade the
effectiveness of the code: