HomeMy WebLinkAboutAPPROVED - Out Building Engineer LetterChief Building Official April 19, 2021
St Lucie County Building Department
2300 Virginia Avenue
Ft Pierce, FL 34982
Location Out Building
3224 Live Oak Lane
Fort Pierce, FL
Subject: Metal sloped roof
The out building will have a sloped metal roof installed. The metal roof will be a DM
Class 1000 with a 1" nailstrip, 26 ga. galvalume coated steel roof panel, 16
wide, with 1" snap seam.
The design pressures for the sloped metal roof are 37 psf in zone 1, 62 psf in zone 2 and
93 psf in zone 3 for a "C" exposure, less than 15 foot tall average roof height. These fastening
patterns will meet the structural criteria of the 2020 Florida Building code, 71h. Edition, with a
"C" exposure during a 170 mph„ i,. 132 mph asd wind event.
If you have any questions, please call me at your convenience.
Thank you.
Dr. Ernest A. Kuonen, 20
President, The Erning Corporation CA-8327
228 Moccasin Trail, West
Jupiter, FL 33458
WOLTER.S ENGINEERING
ENGINEFiRING. DRAFTING, CONSULTING
15211 971h Road N
West Palm Beach, FL 33412
PhlFx: (561) 226-1982
PRODUCT EVALUATION
(FOR HVHZ APPROVED PRODUCT)
PRODUCT: DM CLASS 1000 26 GA. GALVALUME 1" NAILSTRIP 16" WIDE
ROOF PANEL (FLPA# 27499,1)
MANUFACTURER: DYNAMIC METALS, LLC
340 PIKE ROAD
WEST PALM BEACH, FL 33411
To all concerned,
The DM Class 1000 Series 26 Ga. Galvalume 1" Nailstrip 16" Wide Roof Panel, manufactured by Dynamic
Metals LLC, is a non-structural galvalume coated Fluropon painted steel roof panel (50 ksi min) that meets the
requirements of Sections 1507A and 1518.9 of the 7th Edition (2020) Florida Building Code. The panel has been
tested per TAS 100 and TAS 125 by Intertek with results shown in test reports G3443.40-450-44 and G3443.14-
450-44, and per TAS 110 by PRI Construction Materials Technologies, with results shown in test reports VLS-004-
02-01 and VLS-005-02-01.
Technical Documentation.
Drawing "NSS16-HZ" dated 8/15119, signed and sealed by Scott Wolters, PE.
Test Reports listed above by Architectural Testing, Inc. signed and sealed by Vinu Abraham, PE, and
by PRI Construction Materials Technologies, signed and sealed by Zachary R Priest, PE.
Supplemental Calculations to support "NSS16-HZ" drawing, signed and sealed by Scott Wolters, PE.
I have reviewed this submittal per the requirements of FAC Product Approval Rule Chapter 61 G20-3.005
(4). Based on the limitations listed below and those provided in the documents above, this product meets all the
requirements of the 7t' Edition (2020) Florida Building Code generally, and chapter 15 specifically, including the
HVHZ provisions.
Limitations: This panel is approved for use inside and outside of the HVHZ.
Overall Limitations: Maximum Panel Width: 16" (nominal)
Fastener Spacing across panel: 16" (at Nailstrip)
(Panels overlap with male/female snap fit)
Min. Slope: HVHZ: 2"/12"
Non-HVHZ: ''Y2712" (with Lap Sealant)
3712" (no Lap Sealant in Field Zone)
ter , AV ZING IN l irAC I AN" �1'; I A46A V 1�v
Field
Installation
Perimeter & Comer
Installation
Max. Design Pressure:
Fastener S acin :
........_.
-116 ssff
3" From Ends, 6" Max. O.C.
-
-176�sf ___..
3" From Ends, 6" Max. O.C.
Min Panel Fasteners:
_.
#10x1" Panclip Fasteners
___
#10x1" Panclip Fasteners
Panel Sealant:
Continuous bead of Geocel 2300
I
or 2320 at Nailstrip side of seam
Fire Barrier: Where required by code, install an approved fire barrier. Refer to a current
fire directory listing for fire ratings of this roofing system assembly as well
as the location of the fire barrier within the assembly. (See note #2 below,)
Note: Outside of the HVHZ, 1" round plastic caps meeting the requirements of
FBC Section 1507.1.1.1, may be used to prevent galvanic reactions.
Underlayment: Minimum ASTM D 226 Type 11, installed and anchored per FBC Section
1507.1.1.1 (min).
(or)
Any undedayment with a valid FLPA or Miami -Dade NOA
Note: Outside of the HVHZ, 1" round plastic caps meeting the requirements of
FBC Section 1507,1.1.1 may be used to prevent galvanic reactions,
Minimum Substrate: 1/2' (15/32" min) 4-ply CDX Plywood or'/4" solid wood planks S.G. = .42
min- nailed to 2x rafters spaced 24' max. on center with 8d ring -shank
nails spaced 6' on center.
Note: The 1/4" wood planking must be installed as a solid deck and must be
nailed or fastened in a manner equal to the deck above, or as specified by
a Florida licensed Architect/Engineer
Other Limitations: 1. Roof slope must meet requirements of FBC Sections 1507.4.2 or
1515,2.
2. Fire classification is not a part of this evaluation. Refer to a current
Approved Roofing Materials Directory for fire ratings of this product.
3. Design of substrate is by others and is not a part of this evaluation