HomeMy WebLinkAboutFile Documents.119 S Spring St.0061.2019 (3).ACBKESR-2831 I Most Widely Accepted and Trusted Pago 5of 15
TABLE 2 FIRE CLASSIFICATION ASSEMBLIES —ADHERED ROOF COVERING SYSTEMS
SYSTEM
ROOF
PECK'
ROOF
INSULATION'
BARRIER OR COVER
MEMBRANE
NO.
CLASS
SLOPE
BD.) BASEIPLY SHEET
1
A
Noncombustible
412
(Optional)
UL-classified pclyisccyanunot.,
'/,inch thick
'ISOGARD
UltaPly TPO
any thickness
HD'
(Optional)
2
A
Noncombustible
%:12
Min. 14nch to max. 4-inch-thick
--
UltraPly TPO
Flresbne "ISO 95+OIL"
3
A
Combustible
2%:12
Ox-Inch-thick Firestone *ISO 95
/,inch thick "DerlaDedc°
UltraPly TPO
+GL'
(Optional)
Min. 1-inch thick
4
A
Combustible
W12
Min. 14nch to max. 4-incl+thkdr
95OGARDHD'
UltraPly TPO
Firestone "ISO 95+ GL'
(Optional)
Min.'/44nch thick
5
A
Combustible
1:12
ULclassified foam plastic
"DensDeck",
UltraPly TPO
Insulation,
"DensDeck Prime' or
XR
any thickness
"DensDeck DuraGuare°
B
Combustible
102
(Optional)
Min. 14nch 4-Inch-thick
h+^ch thick
UltraPly TPO
6
to max.
"ISOGARD HD°
Firestone"ISO 95+GL"
UL-classified foam plastic
Min. v -inch thick
UltraPly TPO
7
B
Noncombustible
1:12
Insulation,
-a
APAvated OSB
XR
any thickness
8
B
Noncombustible
1:12
4-inch-thick Firestone 1SO 95+
Two plies, Type G2
UltraPly TPO
GU
"MB Be" Sheet"
XR
Two plies, Type G2
9
B
Noncombustible
1:12
flinch -thick Firestone"ISO 95'+
"MS Base Sheet", 1 ply
UltraPly TPO
GL•
"APP 170°,
XR
1 ply'APP 180FR'
Existing
Class A, B or
Existing Class A, 8 or C
10
Csystem to
Combustible
%:12
uninsuleted BUR system
-.-
UltraPly TPO
retain
(mineral surfaced cap sheet)
XR
existing
classification.
For SI: 1 Inch = 25.4 mm; 1 It = 0.305 m; 1 ad= 47.88 Pa.
'All foam plastic insulation must be UL classified and limited to the maximum thickness in accordance with Section 5.4 of this report or the
maximum thickness in accordance with this table, whichever is less.
f
Y ood deck must be minimum 's/y-inch-thick (11.9 mm) plywood. Steel deck must be minimum No. 22 gage galvanized steel [0.030 Inch
(0.76 mm]. Concrete must have a minimum compressive strength (4) of 2500 psi.
ESR-2831 I Most Widely Accepted and Trusted Page 6 of 15
TABLE 3—FIRE CLASSIFICATION ASSEMBLIES —MECHANICALLY FASTENED ROOF COVERING SYSTEMS
SYSTEM
ROOF
BECK'
ROOF
SLIP SHEET
INSULATION
BARRIER OR COVER
MEMBRANE
NO.
CLASS
SLOPE
BDJ BASE/PLY SHEET
A
A
Combustible
512
.._
1.5-inchAhick Firestone
Min. ¢inch thick
UItnaPIy TPO
1SO 95+GL°
'Dem,Deck°
7.5-inch-thek ISO
r (tonal)
2
A
Noncombustible
1:12
—
95+GL
1rinch-thbk
UltraPly TPO
SOGARD HD
(Optional)
3
A
Noncombustible
W.12
—
ILL -classified foam
1/14nch thick
°ISOGARD
UlImPiy TPO
Plastic insulation,
HD'
any thicmesa
Two layers of
GAF
'VemaShlelde
Fire -Resistant
1:12
Roof Deck
4
A
Combustible
Prolacllan"or
--
---
UltrePIy TPO
GAF
"VemaShieide
Solo- Fire-
ResistantSlip
Sheet
(Optional)
,
5
B
Combustible
%:12
-_
Min. 7-inch to max. 4-
/slnch thick
°ISOGARD
UltraPly TPO
Inch -thick
HD"
Firestone "ISO 95+GL°
One layer of
GAF
WersaShieldo
Fire -Resistant
Roof Deck
6
B
Combustible
1:12
Protection°or
—
—
UltraPly TPO
GAF
WersaShieldo
Solo- Fire—
Resistant Slip
Sheet
7
B
Noncombustible
7:12
—
4-incRthick Firestone
One Ply of MB Base Shee4
UltraPly TPO
°IS095+GL'
1plyof Type G3
XR
For SI: 1 inch = 25.4 mm; 1 fi= 0.305 m; 1 psf = 47.88 Pa.
1MI foam plastic insui lion must be UL classified and limited to the maximum thickness in accordance with Section 5.4 of this report or the
maamum thickness in accordance with this table, wfiichever is less.
4^lood deck must be minimum its1a1nch4hlck (11.9 mm) plywood. Steel deck must be minimum No. 22 gage galvanhred steel (0.030 inch
(0.76 mm)). Concrete must have a minimum compressive strength (,) of 2500 psi.