Sitka_Gutter_Drawing.pdf
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- Solicitation number
- 12010919Q0099
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Sitka Ranger District Office Roof Plan/Drawings
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| File | Type | Posted |
|---|---|---|
| Amendment002.pdf | ||
| Amendment001.pdf | ||
| Specifications.pdf | ||
| TBRD_site_plan_2015_0420.pdf | ||
| TBRD_Bunkhouse_Drawings_1984.pdf | ||
| Wage_Determination.pdf | ||
| 12010919Q0099.pdf | ||
| Photos.docx | DOCX document |
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Text version
1 3 4 6
A
B
C
A33.1
A31.1
A31.1
A31.1
A31.13
A33.1
A33.1
5"
5"
5 7
A33.1
5"
3"
5"
RIDGE
DS DS
DS
DS
N
EW
R O
O
FI
N G
EX
IS
TI
N G
R O
O
FI
N G
N
EW
RO
O
F
EX
IS
TI
N G
C O
M
PO
S
IT
IO
N
S H
IN
G
LE
R O
O
FI
N G
NEW GUTTERS AND
DOWNSPOUTS
TYP. ENTIRE BUILDING.
A33.1
A33.1
DS
A35.3 NEW CONTINUOUS RIDGE VENT
A35.3
ROOF TO WALL VENT
AT LOW ROOF
A35.3
2 TYP NEW PLUMBING VENT STACK SEE PLUMBING FOR LOCATIONS
DS
7" / 12" 7" / 12"
RI
D
G E
VA
LL
EY
EXISTING ROOF AND ROOFING
BELOW TO REMAIN
DS
DS
DS
DS
NEW ROOF BELOW
BIOMASS BOILER CHINMEY
A35.3
ROOF TO WALL VENT
AT LOW ROOF
5" / 12"
A31.12
A35.3
WHERE RIDGE OCCURS
OVER VESTUBULE 100
A35.3
ROOF TO WALL VENT
PATCH ROOF AT
REMOVED MECHANICAL
PENETRATIONS TYP.
SEE DEMO PLANS
ATTIC
AREA
MIN REQUIRED FREE
VENTILATION AREA
(ATTIC AREA / 300)**
MIN HIGH VENTILATION
80%**
MIN LOW VENTILATION
20%**
4,833 SFA
B*
16.1 SF = 2,320 SQIN 1,856 SQIN 464 SQIN
GABLE LOUVERS
(EXISTING)
A, B, D* NA 3,192 SQIN >
2,314 SQIN, OK
FREE AREA/ VENT
A 534 SQIN > 464 SQIN, OK
ATTIC VENTILATION MINIMUM REQUIREMENTS
ATTIC HIGH VENTILATION PROVIDED
ATTIC LOW VENTILATION PROVIDED
3.14 SQIN/ VENT* 0
TOTAL FREE AREA
1,000 SF 3.4 SF = 480 SQIN 384 SQIN 96 SQIN
**1/300 IBC 1203.2 EXCEPTION 1
1,152 SQIN**
NEW ROOF/WALL
VENT
TOTAL FREE AREA
C* 284 SF 1 SF = 144 SQIN 115 SQIN 29 SQIN
TOTAL A, B, C: 2,314 SQIN
(EXIST) EAVE
VENTS
B
C
NEW EAVE VENTS
NA 36**
NA 20 (2 EACH JOIST
BAY)
113 SQIN > 96 SQIN, OK
62.8 SQIN > 19 SQIN, OK
*NO ATTIC THESE AREAS - VENTS TO BE EVENLY DISTRIBUTED THROUGHOUT AIR SPACES IN ALL JOIST BAYS SEE
ARCH DETAILS
*HIGH VENTS FOR NEW ROOF AREAS B AND C WILL BE IN EXISTING ATTIC AREA. AIR SPACES FOR NEW ROOF
VENILATION WILL CONNECT TO AND BE CONTIGUOUS WITH EXISTING ATTIC
** ASSUME 50% FREE AREA FOR EXISTING LOUVERS
*** NEW RIDGE VENT FREE AREA: 17 SQIN / LF @ 120 LF = 2,040 SQIN
**** NEW ROOF/WALL VENT FREE AREA: 8.5 SQIN / LF @ 14 LF = 119 SQIN
* 2" DIAMETER (3.14 SQ IN EA) VENTS
**PROVIDE MIN (2) 2" DIA. VENTS EACH JOIST BAY EAVE AND MAINTAIN CONTINUOUS VENTILATION UP TO
MAIN ATTIC SPACE
3.14 SQIN/ VENT*
3.14 SQIN/ VENT*
C
ROOF AREA
(SEE KEY)
2,046 SQ IN***
NEW RIDGE VENTROOF AREA
(SEE KEY)
NA NA 119 SQIN**** 119 SQIN >29 SQIN, OK
D
ROOF AREA
(SEE KEY)
3.14 SQIN/ VENT* 16NA 50 SQIN > 29 SQIN, OK
D* 147 SF .5 SF = 71 SQIN 57 SQIN 15 SQIN
AREA A: 4,833 SF
AREA B:
1,000 SF
AREA C: 284 SF
AREA D: 147 SF
ATTIC VENTILATION KEY
A
D
EP
A
R TMEN OFT GRICU L
T U R E
A
D
EP
A
R TMEN OFT GRICU L
T U R E
275 Fifth Street Suite 100
Bremerton, WA 98337
(360) 377-8773
Fax 792-1385 info@rfmarch.com
RFM Project Number:
SHEET:
TONGASS
ENGINEERING & RECREATION
SEAL
DESIGNED:
DRAWN:
REVIEWED:
DRAWING INFORMATION
REFERENCES
CONSTRUCTION DOCUMENTSMT
JB
JULY 7, 2014
GBSA KAT
T
S A
FE O LA
Reg i s t e r ed P r o f es s i ona l A r c h i t e c t
DAVID A. FERGUS
A-13860
49 TH
C :\R ev it
Lo ca l\2
S itk a
A dm in is tr at io n
O ffi ce
J M
B .r vt
/3 /2
:5
:5 P
M
2012232
CONSTRUCTION DOCUMENTS
A21.6
OFFICE - ROOF PLAN
CO-LOCATED SITKA OFFICE RENOVATION
204 SIGINAKA WAY
SITKA, AK 99835
USDA FOREST SERVICE - TONGASS NATIONAL FOREST
N O R T H
1/8" = 1'-0"
OFFICE - ROOF PLANROOF VENTILATION NOTES
0' 4' 8' 16'
REVISION SCHEDULE
DATE: REVISION: BY:
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