Title 24
TITLE 24 0CT 5, 2005
CHANGES TO Title 24 Part 6 - CHANGES THAT AFFECT YOUR ROOF(S)
Section 118(e) Placement of insulation at the roof/ ceiling
Insulation will be required to be placed directly in contact with a continuous roof or ceiling. Placement on top of a suspended ceiling with removable ceiling panels will be deemed to have no insulative effect except for very limited situations.
Section 118(i) Cool Roofs
The current requirements for cool roofs to qualify for compliance credit and meet prescriptive and performance standards requirements will be moved to this location and expanded to allow a means for roofs with very high reflectance and lower emittance to qualify and requirements for liquid applied roofing products will be revised to be more widely applicable to the range of available coatings.
Section 143(a) Building Envelope
The prescriptive checklist approach will be changed so that nonresidential buildings with low slope roofs will be required to have cool roofs. Insulation will be required tio be placed in direct contact with a continuous roof or drywall ceiling. To comply with prescriptive r values, roofs with metal framing members or a metal deck will be required to install continuous insulation either above the roof deck or between the roof deck and the structural members supporting the roof deck as specified.
Section 143(b) Overall Envelope Approach
This prescriptive tradeoff approach for building envelopes will be changed to establish a limit on west-wall area in the Standards Heat Loss Equation, and to provide tradeoffs to account for Cool Roof Rating Council (CRRC) certified reflectance and emittance ratings relative to Standard Heat Gain Calculations.
Section 149(b)1
When more than 50% of the exterior surface or more than 2,000 square feet of roof (which ever is less) of non-residential low-slope roofs is replaced, recovered or recoated, the requirements for cool roofs will apply.
Section 10-112(a) Certification and Labeling of Roofing product reflectance and Emittance
Labeling requirements for roofing products will be revised to match those required by the Cool Roof Rating Council (CRRC-1) and the marking of roofing packaging for liquid-applied coatings will be reduced to a statement that the product meets the requirements of Part 6, 1189i)3.
MORE IMPORTANT INFORMATION REGARDING…TITLE 24, PART 6
“Title 24 follows the standard energy-code definition of a cool roof-having a reflectivity of at least 0.70 and an emittance of at least 0.75. The assumption used in the energy-saving calculation to justify the cool roof prescriptive requirement was that the actual reflectivity would degrade to 0.55 with age.”
Eco-Structure Magazine – Jan-Feb 2006
“Title 24 is the 2005 Building Energy Efficiency Standards for Residential and non-Residential Buildings adopted by the California Energy Commission (CEC). The Energy Commission adopted the 2005 changes to the June 1, 2001 mandated California Assembly Bill 970 to further California’s energy (electricity) demand. The energy commission adopted he 2005 standards on November 5, 2003 and the buildings Commission adopted them on July 21, 2004 . These new standards, become effective October 1, 2005 .”
Western Roofing Magazine Sept-Oct 95
“The Cool Roof Rating System is enjoying acceptance as the ‘gold standard’ thanks in part to its adoption by California Title 24. The Chicago Energy Code is thought to have provoked change in a number of other cities and the coming updates to Title 24 in California are expected to be a bellweather for other states.
Roofing Contractor Magazine – July 2005
California’s Title 24 has been here for some time, but now it’s very important to California’s roof contractors, architects and roofing material’s suppliers to read learn and save energy for everyone in California It is also important to home buyers and commercial building owners and managers, that we understand Title 24, Part 6 and…take advantage of new energy-saving measures.
YOUR ROOF(S)
Title 24 states “Insulation will be required to be placed directly in contact with a continuous roof or ceiling” so the choice is simple! Do you hang it under the roof in insulation batts or apply it on top of the roof? If you choose the roof top, what is the best alternative, iso-board, polyurethane spray foam or other alternative?
UL, ICC APPROVED POLYURETHANE FOAM
Think 35 year proven spray-applied polyurethane foam system. The spray foam is seamless, monolithic with a 6.8 R value per inch (R 26 – 4 inches), has UL Underwriters Laboratories and ICC International Code Council) approval. Ari-Thane installs SWD Urethane Company foam & coating with a sole-source manufacturers and applicator’s warranty for 1 stop accountability and assurance. Aged R value after 90 days is 6.0-6.2!
PAINT IT WHITE
It’s been said again and again over recent years, 85% of cooling cost go out through the roof - paint it white… California Title 24 , Energy Star, CRRC & Ari-Thane understand –White!
ENERGY STAR APPROVED COATING
“Reflective roof products can reduce the amount of air-conditioning needed to cool these buildings by minimizing the amount of heat entering them from the sun, thereby reducing energy bills by up to 50% In fact, reflective roofs can lower roof surface temperature by up to 100 degrees Fahrenheit, according to the EPA (Environmental Protection Agency). They can also reduce peak cooling demand by 10-15 percent enabling owners to buy smaller less expensive HVAC systems” EPA March 1999
CRRC IS HERE TO STAY
In addition, we need to understand the Cool Roof Rating Council (CRRC), Solar Reflectance and Thermal Emittance standards that have been accepted and mandated by Title 24 as they are here to stay. Think of Solar reflectance as the sun that impinges or bounces back off the roof and never enters, thereby saving heat and energy to cool. Understand Thermal emittance as heat that is allowed to retreat from your roof much as the heat is released from your baked potato as it is allowed to cool upon removal from the kitchen oven.
SOLAR REFLECTANCE 83% - THERMAL EMITTANCE 95%
Ari-Thane Foam Products Inc. spray applies SWD Urethane Company white, acrylic 100% elastomer coatings with 83% Solar Reflectivity and 95% Thermal Emittance that meets Energy Star, CRRC, UL and ICC approval with easy to listings on the web.
SWD Urethane company, sister company to Ari-Thane, is an original Charter Partner with Energy Star and one of the first members of CRRC after founding of the organization.
CALIFORNIA BLACK OUTS
Roofs have been “out of sight and out of mind” for most people. You don’t see your roof, don’t use it, don’t walk on it don’t know it’s there unless a child throws a ball on the roof, a major storm knocks a tree over onto it or the roof leaks. Meanwhile the energy bill comes every month for your home or commercial building and until only recently did people drew a correlation between the roof and your energy bill. The blackouts and monster price increases for electricity in California changed all that. Title 24 is California ’s answer and will work for all of us…together.
“Title 24 is a solution to respond to California ’s Energy Crisis to reduce energy bills, increase energy delivery system reliability and contribute to an approved economic condition for the state.”
Western Roofing Magazine Sept-Oct -2005
Please contact us for a free estimate, further information, architectural specifications or answers to your questions about polyurethane foam roof systems, specifications and approvals.…
FOR MORE INFORMATION…
Please contact us for a free estimate, further information, architectural specifications or answers to your questions about polyurethane foam roof systems, specifications and approvals.…