HomeMy WebLinkAboutBIL 255 Draft 01 2008-2010 iV Oi N
COUNTY OF HAWAII - STATE OF HAWAII
•
BILL NO. 255
ORDINANCE NO.
AN ORDINANCE AMENDING ORDINANCE NO. 09 -48, AS AMENDED, RELATING
TO THE INTERNATIONAL ENERGY CONSERVATION CODE.
BE IT ORDAINED BY THE COUNCIL OF THE COUNTY OF HAWAII:
SECTION 1. Ordinance No. 09 -48, as amended, is further amended by repealing item (2)
of Section 3:
[ "(2) Amending- Section 101.5.2. Section 101.5.2 is amended to r ad:
« 1 ••• • • ._
assemblies complyin with this code and with a p ak design rate of energy usage
less than 3.4 Btu/h•ft (10.7 W/ m or 1.0 watt/ft (1 � 0 7 , ` , of floor ar a shall
be exempt from the building thermal envelope provisions of this code. " "]
SECTION 2. Ordinance No. 09 -48, as amended, is further amended by repealing item (4)
of Section 3:
[", ...- _ . 4 ! . . _ . Je. . . - . . ...
. •„"]
SECTION 3. Ordinance No. 09 -48, as amended, is further amended by amending item (5)
of Section 3 to read as follows:
"(5) Amending Table 402.1.1. [Footnote h is added to] Table 402.1.1 is amended to read:
"TABLE 402.1.1 INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT a
Climate Fenestration Skylight Glazed Ceiling R- Wood Mass Floor Basement Slab Crawl
Zone U- Factor U- Factor Fenestration Value Frame Wall R -Value Wall R -Value Space
SHGC Wall R -Value R -Value & Depth Wall
R -Value R -Value
1.20 0.75 0.40 30 h 13 3 [43] 0 0 0 0
2 0.75 0.75 0.40 30 13 4 13 0 0 0
3 0.65 0.65 0.40 ` 30 13 5 19 0 0 5 / 13
4 - 0.40 0.60 NR 38 13 5 19 10/13 10,2fl 10/13
except
Marine
5 and 0.35 0.60 NR 38 19 or 13 30' 10 / 13 10, 2 ft 10 / 13
Marine 13 +5g
4
6 0.35 0.60 NR 49 19 or 15 30 10/13 10,4ft 10/13
13 +5g
7and8 0.35 0.60 NR 49 21 19 30 10/13 10,4ft 10/13
For SI: 1 foot = 304.8 mm.
NR = No requirement.
a. R- values are minimums. U- factors and SHGC are maximums. R -19 shall be permitted
to be compressed into a 2 x 6 cavity.
b. The fenestration U- factor column excludes skylights. The SHGC column applies to all
glazed fenestration.
c. The first R -value applies to continuous insulation, the second to framing cavity -
insulation; either insulation meets the requirement.
d. R -5 shall be added to the required slab edge R- values for heated slabs.
e. There are no SHGC requirements in the Marine zone.
f. Or insulation sufficient to fill the framing cavity, R -19 minimum.
g. "13 +5" means R -13 cavity insulation plus R -5 insulated sheathing. If structural
sheathing covers 25 percent or less of the exterior, insulating sheathing is not required
where structural sheathing is used. If structural sheathing covers more than 25 percent of
exterior, structural sheathing shall be supplemented with insulated sheathing of at least R-
2.
h. The ceiling insulation alternative in Section 402.1.1.1 can be used as an equivalent
alternative for R -30."
SECTION 4. Ordinance No. 09 -48, as amended, is further amended by amending
paragraph (6) of item (6) of Section 3 to read as follows:
"6. For compliance with Subsection 1.4, a cool roof shall have an infrared
[emi— a nee] emissivity of no [mere] less than 0.75 when tested in accordance with
ASTM E -408 and a high solar reflectance. Alternatively, the corresponding Solar
Radiance Index (SRI) for a cool roof can be used. The manufacturer's test results
shall be acceptable for compliance. A cool roof has both a light color (high solar
reflectance) and a high [cmittanee] emissivity (can reject heat back to the
environment). White painted surfaces and other smooth white coatings typically
meet these requirements. Surfaces that do not meet the requirements include
unpainted metal and metalized roof coatings (silver appearance)."
SECTION 5. Ordinance No. 09 -48, as amended, is further amended by amending item
(12) of Section 3 to read as follows:
"(12) Amending Section 403. Section 403 is amended by adding Section 403.7
to read:
2
•
"403.7 Residential pools. Residential pools shall be provided with energy
conserving measures in accordance with Sections 403.7.1 through 403.7.3,
403.7.1 Pool heaters. All pool heaters shall be equipped with a
readily accessible on -off switch to allow shutting off the heater without
adjusting the thermostat setting. Pool heaters fired by liquid propane or
natural gas shall not have continuously burning pilot lights.
403.7.2 Time switches. Time switches that can automatically turn off
and on heaters and pumps according to a preset schedule shall be installed
on swimming pool heaters and pumps.
Exceptions:
1. Where public health standards require 24 -hour pump operation;
2. Where pumps are required to operate solar- and waste -heat-
recovery pool heating systems.
403.7.3 Pool covers. Heated pools shall be equipped with a vapor
retardant pool cover on or at the water surface. Pools heated to more than
90 ° F (32 ° C) shall have a pool cover with a minimum insulation value of R-
12.
Exception: Pools deriving over 60 percent of the energy for heating
from site - recovered energy or solar energy source. '
SECTION 6. Material to be repealed is bracketed and stricken through. Material to be
added is underscored. In printing this ordinance, the brackets, bracketed and stricken material,
and underscoring need not be printed. The Revisor shall renumber items under Section 3 of
Ordinance No. 09 -48 in accordance with those items that have been repealed by this ordinance.
SECTION 7. If any provision of this ordinance or the application thereof to any person
or circumstance, is held invalid, such invalidity shall not affect other provisions or applications
of the ordinance that can be given effect without the invalid provision or application, and to this
end, the provisions of this ordinance are declared to be severable.
SECTION 8. This ordinance shall take effect upon approval.
BY:
COUNCIL MEMBER TY OF HAWAII
, Hawai`i
Date of Introduction:
Date of 1 Reading:
Date of 2nd Reading:
Effective Date:
•
REFERENCE, Cant- 82 5
3