- STATE INFORMATION
- [ 2007 Plumbing Code of New York State ]
- Chapter 11 - Storm Drainage
- SECTION 1101 GENERAL
- SECTION 1102 MATERIALS
- SECTION 1103 TRAPS
- SECTION 1104 CONDUCTORS AND CONNECTIONS
- SECTION 1105 ROOF DRAINS
- SECTION 1106 SIZE OF CONDUCTORS, LEADERS AND STORM DRAINS
- SECTION 1107 SECONDARY (EMERGENCY) ROOF DRAINS
- SECTION 1108 COMBINED SANITARY AND STORM SYSTEM
- SECTION 1109 VALUES FOR CONTINUOUS FLOW
- SECTION 1110 CONTROLLED FLOW ROOF DRAIN SYSTEMS
- SECTION 1111 SUBSOIL DRAINS
- SECTION 1112 BUILDING SUBDRAINS
- SECTION 1113 SUMPS AND PUMPING SYSTEMS
- Chapter 11 - Storm Drainage
- [ 2007 Plumbing Code of New York State ]
1106.6 Size of roof gutters. The size of semicircular gutters shall be based on the maximum projected roof area in accordance with Table 1106.6.
TABLE 1106.6 SIZE OF SEMICIRCULAR ROOF GUTTERS
TABLE 1106.6 SIZE OF SEMICIRCULAR ROOF GUTTERS
| DIAMETER OF GUTTERS (inches) | HORIZONTALLY PROJECTED ROOF AREA (square feet) |
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| Rainfall rate (inches per hour) |
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| 1 | 2 | 3 | 4 | 5 | 6 |
|
| 1/16 unit vertical in 12 units horizontal (0.5-percent slope) |
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| 3 4 5 6 7 8 10 | 680 1,440 2,500 3,840 5,520 7,960 14,400 | 340 720 1,250 1,920 2,760 3,980 7,200 | 226 480 834 1,280 1,840 2,655 4,800 | 170 360 625 960 1,380 1,990 3,600 | 136 288 500 768 1,100 1,590 2,880 | 113 240 416 640 918 1,325 2,400 |
| 1/8 unit vertical 12 units horizontal (1-percent slope) |
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| 3 4 5 6 7 8 10 | 960 2,040 3,520 5,440 7,800 11,200 20,400 | 480 1,020 1,760 2,720 3,900 5,600 10,200 | 320 681 1,172 1,815 2,600 3,740 6,800 | 240 510 880 1,360 1,950 2,800 5,100 | 192 408 704 1,085 1,560 2,240 4,080 | 160 340 587 905 1,300 1,870 3,400 |
| 1/4 unit vertical in 12 units horizontal (2-percent slope) |
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| 3 4 5 6 7 8 10 | 1,360 2,880 5,000 7,680 11,040 15,920 28,800 | 680 1,440 2,500 3,840 5,520 7,960 14,400 | 454 960 1,668 2,560 3,860 5,310 9,600 | 340 720 1,250 1,920 2,760 3,980 7,200 | 272 576 1,000 1,536 2,205 3,180 5,750 | 226 480 834 1,280 1,840 2,655 4,800 |
| 1/2 unit vertical in 12 units horizontal (4-percent slope) |
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| 3 4 5 6 7 8 10 | 1,920 4,080 7,080 11,080 15,600 22,400 40,000 | 960 2,040 3,540 5,540 7,800 11,200 20,000 | 640 1,360 2,360 3,695 5,200 7,460 13,330 | 480 1,020 1,770 2,770 3,900 5,600 10,000 | 384 816 1,415 2,220 3,120 4,480 8,000 | 320 680 1,180 1,850 2,600 3,730 6,660 |
| For SI: 1 inch = 25.4 mm, 1 square foot = 0.0929 m2. |