510 R.I. Code R. 510-RICR-00-00-1.14
Delete IBC section 1608.1 General and substitute the following:
Design snow loads shall be determined in accordance with section 7 of ASCE 7 using the ground snow load values determined by Table 1608.1, but the minimum flat roof snow load shall be not less than that determined by Table 1608.1. The design roof load shall not be less than that determined by section 1607.
Delete IBC section 1608.2 Ground Snow Load.
Add the following to IBC section 1608 Snow Loads.
When a new building is to be constructed or an existing building extended to a greater height than an existing adjoining building, a determination of structural integrity of the roof of the adjoining building shall be made regarding the snow loads in accordance with section 1608.0 SNOW LOADS. The person intending to cause the construction or building height extension shall deliver written notice of intent to the owner of the potentially affected building. The notice shall request license to enter the potentially affected building to inspect and determine the existing building's capacity to sustain additional imposed snow drift load. The person causing such construction shall be liable and shall at their own expense preserve, protect and, if necessary, reconstruct those portions of the adjacent building affected by this construction. If the owner of the adjacent building refuses to allow inspection, protection or reconstruction as may be required, the person causing such new construction or building height extension shall notify, in writing, both the Building Official and the owner of the adjacent property. Such notification shall identify that the responsibility of providing inspection, protection or reconstruction to the adjacent building has become the exclusive responsibility of the owner of the adjacent property.
The basic wind speed, in mph, shall be determined by Table 1608.1.
Delete all IBC Figures 1609 and substitute Rhode Island Wind Speed Map Figure 1609 and Figure 1609 (A), and Rhode Island frost protection Figure 1609 (B)
TABLE 1608.1 | |||||||||
Municipality | Ground Snow Load, Pg (psf | Minimum Flat Roof Snow Load, Pf (psf) | Basic Wind Speed, V (mph) | Seismic Coefficients | Frost Depth | ||||
Risk Category I | Risk Category II | Risk Category III | |||||||
From fig 1609.3(4) | From fig 1609.3(1) | From fig 1609.3(2) | Ss | S1 | |||||
Barrington | 30 | 30 | 117 | 127 | 135/139 XWB2-WB1 | 0.17 5 | 0.06 1 | 3'-4" | |
Bristol | 30 | 30 | 118 | 128 | 137/140 WB1/WB2 | 0.17 4 | 0.06 0 | 3'-4" | |
Burrillville | 40 | 30 | 111 | 121 | 130/135 XWB1 | 0.17 5 | 0.06 3 | 4'-6" | |
Central Falls | 30 | 30 | 114 | 124 XWB1 | 133/137 XWB2-WB1 | 0.17 8 | 0.06 2 | 4'-0" | |
Charlestown | 30 | 30 | 121 | 131 WB1 | 140/143 WB2 | 0.15 8 | 0.05 7 | 3'-4" | |
Coventry | 35 | 30 | 116 | 126 | 134/138 WB1/WB1 | 0.17 1 | 0.06 1 | 4'-0" | |
Cranston (West of 295) | 35 | 30 | 116 | 126 | 134/138 | 0.17 | 0.06 | 4'-0" | |
XWB1 | XWB2 WB1/WB1 | 4 | 1 | ||||||
Cranston (East of 295) | 30 | 30 | 116 | 126 XWB1 | 134/138 XWB2 WB1/WB1 | 0.17 8 | 0.06 3 | 4'-6" | |
Cumberland | 40 | 30 | 116 | 123 XWb1 | 131/136 XWB2 WB1/WB1 | 0.17 8 | 0.06 3 | 4'-6" | |
East Greenwich | 30 | 30 | 118 | 128 XWB1 | 136/140 XWB2-WB1/WB2 | 0.17 2 | 0.06 0 | 3'-4" | |
East Providence | 30 | 30 | 115 | 126 XWB1 | 134/138 XWB2 WB1/WB1 | 0.17 7 | 0.06 1 | 3'-4" | |
Exeter | 35 | 30 | 118 | 128 WB1 | 137140 XWB2 WB1/WB2 | 0.16 8 | 0.05 9 | 4'-0" | |
Foster | 40 | 30 | 112 | 123 XWB1 | 131/135 XWB2 WB1/WB1 | 0.17 2 | 0.06 2 | 4'-6" | |
Glocester | 40 | 30 | 112 | 122 XWB1 | 131/135 XWB2 WB1/WB1 | 0.17 2 | 0.06 3 | 4'-6" | |
Hopkinton | 35 | 30 | 119 | 128 XWB1 | 137/141 XWB2 WB1/WB1 | 0.16 4 | 0.05 8 | 4'-0" | |
Jamestown | 30 | 30 | 108 | 121 XWB1 | 131/139 XWB2 WB1/WB1 | 0.16 4 | 0.05 8 | 3'-4" | |
Johnston | 35 | 30 | 114 | 125 XWB1 | 133/137 XWB2 WB1/WB1 | 0.17 4 | 0.06 1 | 4'-0" | |
Lincoln | 40 | 30 | 113 | 124 WB1 | 132/136 XWB2 WB1/WB1 | 0.17 7 | 0.06 2 | 4'-6" | |
Little Compton | 30 | 30 | 121 | 131 WB1 | 140/144 WB2/WB2 | 0.16 4 | 0.05 7 | 3'-4" | |
Middletown | 30 | 30 | 121 | 131 WB1 | 139/143 XWB2 WB1/WB2 | 0.16 8 | 0.05 8 | 3'-4" | |
Narragansett | 30 | 30 | 121 | 131 WB1 | 140/143 WB2/WB2 | 0.16 4 | 0.05 8 | 3'-4" | |
New Shoreham | 25 | 25 | 124 | 134 XWB2 WB1 | 143/149 WB2/WB2 | 0.14 2 | 0.05 3 | 2'-6" | |
Newport | 30 | 30 | 121 | 131 XWB2 WB1 | 140/144 WB2/WB2 | 0.16 4 | 0.05 8 | 3'-4" | |
North Kingstown | 30 | 30 | 119 | 129 XWB1 | 138/141 XWB2 WB1/WB2 | 0.16 7 | 0.05 9 | 3'-4" | |
North Providence | 35 | 30 | 114 | 124 XWB1 | 133/137 XWB2 WB1/WB1 | 0.17 6 | 0.06 2 | 4'-0" | |
North Smithfield | 40 | 30 | 112 | 122 XWB1 | 131/135 XWB2 WB1/WB2 | 0.17 6 | 0.06 2 | 4'-6" | |
Pawtucket | 35 | 30 | 114 | 125 | 133/137 | 0.17 | 0.06 | 4'-0" | |
XWB1 | XWB2 WB1/WB1 | 8 | 2 | ||||||
Portsmouth | 30 | 30 | 120 | 129 XWB1 | 138/142 XWb2 WB1/WB1 | 0.17 0 | 0.05 9 | 3'-4" | |
Providence | 30 | 30 | 115 | 125 XWB1 | 124/138 XWB2 WB1/WB1 | 0.17 6 | 0.06 2 | 3'-4" | |
Richmond | 35 | 30 | 119 | 129 XWB1 | 137/141 XWB2 WB1/WB2 | 0.16 4 | 0.05 9 | 4'-0" | |
Scituate | 35 | 30 | 114 | 124 WB1 | 133/137 XWB2 WB1/WB1 | 0.17 3 | 0.06 1 | 4'-0" | |
Smithfield | 40 | 30 | 113 | 123 XWB1 | 131/136 XWB2 WB1/WB1 | 0.17 5 | 0.06 2 | 4'-6" | |
South Kingstown | 30 | 30 | 121 | 130 WB1 | 139/143 XWB2 WB1/WB2 | 0.16 1 | 0.05 8 | 3'-4" | |
Tiverton | 30 | 30 | 119 | 129 XWB1 | 138/142 XWB2 WB1/WB2 | 0.16 9 | 0.05 8 | 3'-4" | |
Warren | 30 | 30 | 114 | 127 XWB1 | 136/140 XWB2 WB1/WB2 | 0.17 6 | 0.06 0 | 3'-4" | |
Warwick | 30 | 30 | 117 | 127 XWB1 | 136/139 XWB2 WB1/WB1 | 0.17 4 | 0.06 0 | 3'-4" | |
West Greenwich | 35 | 30 | 117 | 127 XWB1 | 135/139 XWB2 WB1/WB1 | 0.16 9 | 0.06 0 | 4'-0" | |
West Warwick | 30 | 30 | 116 | 126 XWB1 | 135/139 XWB2 WB1/WB1 | 0.17 2 | 0.06 0 | 4'-0" | |
Westerly | 30 | 30 | 120 | 129 XWB1 | 138/142 XWB2 WB1/WB2 | 0.15 8 | 0.05 7 | 3'-4" | |
Woonsocket | 40 | 30 | 112 | 122 XWB1 | 130/135 XWB2 WB1/WB1 | 0.17 7 | 0.06 3 | 4'-6" | |
Blue color by model code Wind-borne Debris Region greater than 130 MPH V-ult within a mile of "mean high coastal water line" gt;gt; | << Green Color Wind-borne Debris Region In areas where the ultimate design wind speed is 140 mph (63.6 m/s) or greater | ||||||||
XWB, XWB1, and WXW2 - No longer wind borne debris regions.
WB1 = 130 - 139 mph
WB2 = 140 mph and above
ete IBC section 1613.3.1 and substitute the following:
The parameters SS and S1 for each Rhode Island community are given in Table 1608.1.
510 R.I. Code R. 510-RICR-00-00-1.14
Amended effective 2/1/2022