1. 8'-0"1'-0"
T.O.P.
(N) T.O.S.
21'-11"
2'-0"10'-7"
2ND F.F
1ST F.F
F F
GRADE
ALG
(E) TOP OF PARAPET
VENTILATION NOTES:
Underfloor Ventilation:
Total Area Required (Methane Zone, section 91.7104.3.2):
1 percent of underfloor area =1% x 1450SF = 14.50 SF Required
F
F
(E) VENTS
(E)
FLAT ROOF 2% SLOPE
(N) ROOFTOP
GUARDRAILS >42" HIGH
4" MAX SPACING(TYP)
(N)
EXISTING HOUSE NEW ADDITION
8'-0"1'-0"
T.O.P.
(N)T.O.S.
21'-11"
10'-7"
2ND F.F
1ST F.F
GRADE
ALG
1'-4"
8'-0"1'-0"
T.O.P.
(N)T.O.S.
21'-11"
10'-7"
2ND F.F
1ST F.F
GRADE
ALG
2'-0"
(N) SKYLIGHT
(E) VENTS
(E) (E) (E)
CLASS "A" MODIFIED BITUMEN
ENERGY STAR ROOFING
ICC # ESR 1388
(N) ROOFTOP GUARDRAIL (TYP)
(N)(N) (N)
F
F
9'-0"
T.O.P.
(N)T.O.S.
21'-11"
10'-7"
1ST F.F
GRADE
ALG
1'-4"
(N) STAIRS
CLASS "A" MODIFIED BITUMEN
ENERGY STAR ROOFING
ICC # ESR 1388
EXISTING HOUSENEW ADDITION
(N)
CANOPY CANOPY
8'-0"1'-0"
T.O.P.
(N)T.O.S.
21'-11"
2'-0"10'-7"
2ND F.F
1ST F.F
GRADE
ALG
F F F
EXISTING HOUSENEW ADDITION
MIN. 10" RUN
MAX. 7.75" HEIGHT
(TYPICAL)
(N) STAIRS
(N) 16"X8"VENTS
(N)
(N) CRAWL SPACE ACCESS (24"X24")
(N) (N)
CLASS "A" MODIFIED BITUMEN
ENERGY STAR ROOFING
ICC # ESR 1388
(N) ROOFTOP GUARDRAIL (TYP)
CLASS "A" MODIFIED BITUMEN
ENERGY STAR ROOFING
ICC # ESR 1388
(N)
A-3
DRAWN BY: ALF
DATE: NOV.13.15
RENOVATIONANDADDITION