HomeMy WebLinkAboutLETTER- ENGINEERING ROOFING SPECIFICATIONArchitectonic Inc
March 29, 2018
Saint Lucie County Building Department
Attn: Roof Permit Plan Review
2300 Virginia Avenue
Ft. Pierce, FL 34982
SCANNED
Ely
Re: Roofing specification prepared for the St. Lucie County Building Dept. for the structure
located at 4917 Palmetto Drive, St. Lucie County
I
Manufacturer: Tri-Built Roofing Products
Profiles: Tri —Built Modified, FL# 16027-112
Code: FBC 2017; Section R 905.10
Wind Speed: 165 MPH; Ultimate'Design Wind Speeds
Exposure: C ,i
Mean Roof Height: 30' Maximum
Pitch: % /12 _
Required Design Pressure: Zone1: -33.5 Zone 2: -52.8 Zone3:-73.45
Maximum Uplift Pressure: -60 Zone 1 & Zone 2, -96.9 Zone 3
Base: Certain Teed Glasbase with 32 ga.1-5/8" diameter Tin Caps w/ 11 ga.
Annular ring shank nails @ 8" o.c. in 4 inch lap and 8" o.c. in three
equally spaced, staggered center rows Zone 1 & 2, Zone 3 fasteners
shall be;spaced @ 6" o.c. in 4 inch lap & 6" o.c. in three equally spaced
staggered center rows
Ply Sheet: (Optional) One or more SBS-SA or APP TA
Cap: SBS-SA, APP-SA, SBS-TA OR APP-TA
.Roof Decking: Existing 5/8" plywood sheathing to be nailed w 8d x 2" ring shank nails
@ 6" O.C. thru out Zone 1, 4" O.C. perimeter & 6" O.C. field Zone 2,
and 4" O.C. thru out Zone 3.
The above approved, as per Florida Building Code Compliance acceptances, 2017 Florida Building Code,
and the Manufacturer's recommendations.
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Tel:. 772 460 7751 www.architectonicinc.com
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TABLE 1E-1: WOOD DECKS —,NEWT CONSTRUCTION oe REROOF{TEAR-OFF)
SYSTEM TYPE f: NON -INSULATED, MECHANICALLY ATTACHED BASE SHEET, BONDED ROOF COVER
System
Base Sheet
15 Note Cover
Roof ( )
MDP
No.
Deck (Note 1)
Base
Fasteners
Attach
Base Ply
Cap Ply
(pso
Min. 15/32-inch
9-inch o.c. at 2-inch lap and 18-inch o.c. in two,
(Optional) BP -AA or
SBS-AA, SBS-TA
45.0'
W-14
plywood at max. 24-
Polyglass Elastobase
Simplex MAXX Cap
equally spaced, staggered center rows
APP-TA
or APP TA
inch spans
Min. 15/32-inch
9-inch o.c. at 2-inch lap and 12-inch o.c. in two,
(Optional) BP -AA or
SBS-AA, SBS-TA
52.5
W-15
plywood at max. 24-
Polyglass Elastobase
Simplex MAXX Cap
equally spaced, staggered center rows
APP-TA
or APP TA
inch spans
�MM.,,in. inch
Polyglass Elastobase, Polyglass Elastobase
Poly, Polyglass G2 Base, CertainTeed
32 ga., 1-5/8-inch diameter tin caps
8-inch o.c. in 4-inch lap and 8-inch o.c. in three,
(Optional) One or
more BP -AA or
SBS-AA, SBS-
60.0
W �6
od at
�p4-inch at max.
Glasbase, Firestone MB Base, JM Perma-
with 11 ga. annular ring shank nails
equally spaced, staggered center rows
APP-TA
TA, APP-TA
24-inch spans
Ply 28, Tamko Glass Base or GAFGLAS #75
Min.19/32-inch
Polyglass Elastobase or Polyglass
32 ga., 1-5/8-inch diameter tin caps
8-inch o.c. in 4-inch lap and 8-inch o.c. in three,
(Optional) One or
more S BS-SA or
moreAPP-T
SBS-SA, APP-
SA, SBS-TA or
-60.0
W-17
plywood at max.
ly
Elastobase Poly with poly top surface
with 11 ga. annular ring shank nails
equally spaced, staggered center rows
APP-TA
24-inch spans
Min. 15/32-inch
6-inch o.c. at 2-Inch lap and 6-inch o.c. in two,
(Optional) BP -AA or
SBS-AA, SBS-TA
-90.0
W-18
plywood at max. 24-
Polyglass Elastobase
Simplex MAXX Cap
equally spaced, staggered center rows
APP-TA
or APP-TA
inch spans -
Min. 19/32-inch
- -
Polyglass Elastobase or Polyglass
-
32 ga., 1-5/8-inch diameter -tin caps
4-inch o.c. in 4-inch lap and 4-inch o.c. in four,
(Optional) One or
more SBS-SA or
moreAPP-S
SBS-SA, APP-
SA, SBS-TA or
SA, SBS
-97.5
W-19
plywood at max.
Elastobase Poly with poly top surface
with 11 ga. annular ring shank nails.
equally spaced, sttaggered center
24-inch spans
Min. 15/32-inch
6-inch o.c. at 2-inch lap and 6-inch o.c. in three,
(Optional) BP -AA or
SBS-AA, SBS-TA
-105.0
W-20
plywood at max. 24-
Polyglass Elastobase
Simplex MAXX Cap
equally spaced, staggered center rows
APP-TA
or APP-TA
.
inch spans
Min.19/32-inch
Polyglass Elastobase or Polyglass
32 ga., 1-5/8-inch diameter tin caps
6-inch o.c. in 4-inch lap and 6-inch o.c. in four,
(Optional) One or
more BP -AA or
S85-AA, SBS-
-112.5
W-21
plywood at max.
Elastobase Poly
with 11 ga. annular ring shank nails
equally spaced, staggered center rows
APP-TA
TA, APP-TA
24-inch spans
Min. inch
Polyglass Elastobase or Polyglass
32 ga., 1-5/8-inch diameter tin caps
with it ga. annular ring shank nails.
6-inch o.c. in 4-inch lap and 6-inch o.c. in four,
(Optional) One or
SBS-SA, APP-
SA, 585-TA or
112.5
W-22
plyw000dd aat t max.
Elastobase Polywith of to surface
poly p
Note: Tin caps are to be rimed with
P p
equally spaced, staggered center rows
q y P gg
more APP-TA
APP-TA
24-inch spans
ASTM D41 primer.
Exterior Research and Design, I.I.C. d/b/a Trinity I ERD Evaluation Report A42970.10.12-R2 for FL16027-RZ
Certificate of Authorization #9503 67 EDITION (2017) FBC NON-HVHZ EVALUATION Revision 2: 09/25/2017
Prepared by: Robert Nieminen, PE-59166 TRI-BUILT Modified Bitumen Roof Systems; (800) 516-1485 Appendix 1, Page 7 of 26
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