Search results
People also ask
Does a cool roof shingle have a CRRC rating?
What is a CRRC rating on a roof?
Are Timberline HDZ Rs shingles CRRC rated?
A CRRC product rating describes the radiative performance of a roofing material; it does not indicate a ranking or approval. A product’s placement on the Rated Products Directory (Directory) does not mean that the product is “cool” as defined by any particular code or program. Only products with active ratings can be found on the Directory.
- CRRC RATED PRODUCTS DIRECTORY USER GUIDE
3,000+ rated roofing products from all major product types...
- Home
The CRRC is a 501(c)(3) nonprofit organization that develops...
- CRRC RATED PRODUCTS DIRECTORY USER GUIDE
- Absorbing Heat
- Solar Reflectance
- Thermal Emittance
- A Final Key Measurement: The Solar Reflectance Index
If your attic is not properly ventilated and insulated, this absorbed heat may increase the temperature inside your home. This could contribute to increased energy costs, as you may need to run cooling devices or central air systems more often or at lower temperatures to keep the inside of your home feeling comfortable. If you notice that your ener...
As the sun shines on your roof, it delivers visible and invisible (infrared and ultraviolet) light waves. What your roof does with reflecting the sunlight determines its solar reflectance. The more waves that are bounced back into the atmosphere, the higher the solar reflectance of the asphalt roofing shingle. The solar reflectance measurement rang...
As your roof absorbs solar radiation, it begins to heat up. Some of this radiated heat is dispersed into the surrounding atmosphere. This process of radiating previously absorbed heat is thermal emittance. Thermal emittance measurement ranges between 0.0 and 1.0 (sometimes referred to as a percentage between 0 and 100). The higher the number, the l...
The Solar Reflectance Index, or SRI, is a calculation using the aged solar reflectance and thermal emittance measurements of the asphalt shingles materials. It ranges from 0 to 100. This measurement can be used as an indicator of how hot shingles are likely to become when they’re exposed to the sun. The lower the SRI value, the hotter the asphalt s...
All GAF California Cool™ Shingles can be used to comply with Title 24 cool roof requirements, and are rated by the Cool Roof Rating Council. Timberline HDZ® RS Shingles Timberline HDZ ® RS shingles have been rated by the Cool Roof Rating Council (CRRC) for use in Title 24 projects.
Landmark Solaris shingles are rated by the Cool Roof Rating Council (CRRC) and can be used to comply with the 2016 California Title 24 Part 6 Cool Roof Requirements. Solaris may also qualify for credits/points in LEED, NAHB and other "green" programs.
Some common cool roof materials include membranes, shingles, coatings, stone/rock, metal, and tile with high solar reflectance. Other cool roof strategies include ballasted roofing and green roofs. Learn more about roof types and product types from the Cool Roof Rating Council (CRRC). https://coolroofs.org/resources/home-and-building-owners
