510 R.I. Code R. 510-RICR-00-00-2.13
Compliance shall be demonstrated by either:
N 1101. 7 (R301.1) Climate Zones: Rhode Island shall be considered as climate zone 5 with the following design conditions.
Table N1101.7 (R301.1) Delete and substitute the following:
Table N1101.7 (R301.1) | Value | Value |
Exterior Design Conditions. | ||
Climate zone | Providence County | All others |
Winter, design dry-bulb (degree F) | 0 | 5 |
Summer, design dry-bulb | 87 | 89 |
Summer design wet-bulb | 71 | 73 |
Degree days heating | 6831 | 5950 |
Degree days cooling | 371 | 811 |
Delete without substitute sections N1101.7, N1101.7.2, N1101.7.3 R301.2 and R301.3, R301.4.
Delete Table N1101.7.2 (1) (R301.3(1)) without substitute.
Delete Table N1101.7.2 (2) (R301.3(2)) without substitute.
Delete Figure N1101.7 (R301.1) and substitute the following: Figure N1101.7 (R301.1)
Figure N1101.7 (R 301.1)
Delete Table N1101.14 (R401.3) and substitute the following:
Add the following to N1101.14 (R401.3), Certificate:
Figure R401.3 A certificate similar to this shall be attached to or near the electrical panel board | |||
ENERGY CERTIFICATE | |||
Street Address | |||
City / Town | |||
Predominant Values | |||
R-Value Ceiling / Roof | |||
R- Value Walls | |||
R- Value Ducts (outside conditioned space) | |||
U Factor Fenestration | |||
SHGC Fenestration | |||
Gas Fired Un-Vented Room Heater | |||
Baseboard Electric Heater | |||
Electric Furnace | |||
U Factor Skylight / SHGC | |||
AFUE Value Boiler / Furnace | |||
Efficiency and type of heating equipment | |||
Efficiency and type of cooling equipment | |||
Efficiency and type of service water heater | |||
Contractor or Design Professional | |||
Address | |||
Registration | |||
Signature | |||
Delete and substitute table N1102.1.2 (R402.1.2)
TABLE N 1102.1.2 (R 402.1.2) INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT a | ||||||||||
CLIMATE ZONE | FENESTRATION U-FACTOR b | SKYLIGHT b U-FACTOR | GLAZED FERNESTRATION SHGC b | CEILING R-VALUE i | WOOD FRAME WALL R-VALUE g | MASS WALL R-VALUE | FLOOR R-VALUE | BASEMENT C WALL R-VALUE | SLAB d R-VALUE & DEPTH | CRAWL SPACE c WALL R-VALUE |
5 | 0.35 | 0.60 | NR | 38 | 20 or 13+5 f | 13/17 | 30 e | 10/13 | R-10 for 2 ft. | 10/13 |
For SI: 1 foot = 304.8 mm.
R-values are minimums U-factors and SHGC are maximums. R-19 batts compressed into a nominal two (2) by six (6) framing cavity such that the R-value is reduced by R-1 or more shall be marked with the compressed batt R-value in addition to the full thickness R-value.
The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration.
"10/13" means R-10 continuous insulated sheathing on the interior or exterior of the home or R-13 cavity insulation at the interior of the basement wall.
R-5 shall be added to the entire slab and the required slab edge R-values for heated slabs or insulation sufficient to fill the framing cavity, R-19 minimum.
"13+5" means R-13 cavity insulation plus R-5 insulated sheathing. If structural sheathing covers twenty-five percent (25%) or less of the exterior, insulating sheathing is not required where structural sheathing is used. If structural sheathing covers more than twenty-five percent (25%) of exterior, structural sheathing shall be supplemented with insulated sheathing of at least R-2.
The second R-value applies when more than half the insulation is on the interior of the mass wall.
TABLE N1102.1.4(R402.1.4) EQUIVALENT U-FACTORSa
CLIMATE ZONE | FENESTRATION U-FACTOR | SKYLIGHT U-FACTOR | CEILING U-FACTOR | FRAME WALL U-FACTOR | MASS WALL U-FACTORb | FLOOR U-FACTOR | BASEMENT WALL U-FACTOR | CRAWL SPACE U-FACTOR |
5 | 0.32 | 0.55 | 0.026 | 0.057 | 0.082 | 0.033 | 0.050 | 0.055 |
Delete N1102.1.5 (R402.1.5) Total UA alternative and substitute the following:
Delete section N1102.4.1.2 (R402.4.1.2) and substitute the following:
Testing shall be conducted by an approved third party, where required by the building official. A written report of the results of the test shall be signed by the party conducting the test and provided to the building official. Testing shall be performed at any time after creation of all penetrations of the building thermal envelope.
During testing:
Exterior windows and doors, fireplace and stove doors shall be closed, but not sealed, beyond the intended weather-stripping or other infiltration control measures;
Dampers including exhaust, intake, makeup air, backdraft and flue dampers shall be closed, but not sealed beyond intended infiltration control measures;
Interior doors, if installed at the time of the test, shall be open.
Exterior doors for continuous ventilation systems and heat recovery ventilators shall be closed and sealed;
Heating and cooling systems, if installed at the time of the test, shall be turned off; and Supply and return registers, if installed at the time of the test, shall be fully open.
Delete section N1103.3.3 (R403.3.3) and substitute the following:
Exceptions:
Air-impermeable spray foam products shall be permitted to be applied without additional joint seals.
Where a duct connection is made that is partially inaccessible, three (3) screws or rivets shall be equally spaced on the exposed portion of the joint so as to prevent a hinge effect.
Continuously welded and locking -type longitudinal joints and seams in ducts operating at a static pressures less than two inches (2") of water column (five hundred (500) Pascals) pressure classification shall not require additional closure systems.
Duct tightness shall be verified by either of the following:
Postconstruction test: Total leakage shall be less than or equal to eight (8) cfm (113.3 L/min) per one hundred (100) square feet (9.29 m2) of conditioned floor area.
Rough-in test: Total leakage shall be less than or equal to six (6) cfm (113.3 L/min) per one hundred (100 ft2) (9.29 m2) of conditioned floor area when tested at a pressure differential of one tenth of one inch (0.1") w.g. (25 Pa) across the system, including the manufacturer's air handler enclosure. All registers shall be taped or otherwise sealed during the test. If the air handler is not installed at the time of the test. Total leakage shall be less than or equal to four (4) cfm (85 L/min) per one hundred (100) square feet (9.29 m2) of conditioned floor area.
Exception: The total leakage test is not required for ducts and air handlers located entirely within the building envelope.
Delete section N1103.3.5 (R403.3.5) and substitute the following:
Delete Table N1103.6.1 without substitutions
Reference Standards
Delete without substitute
ASHRAE - 2013 ASHRAE Handbook of Fundamentals.
510 R.I. Code R. 510-RICR-00-00-2.13
Amended effective 2/1/2022