Last year, several members of the Roof Coating Manufacturer’s Association (RCMA) banded together to update the old ASTM standard for acrylic roof coatings. The new Type-II standard gives formulators the flexibility to create more competitive products.
How much do you know about the new standard? Take the quiz to find out. If you get stuck, try reading the full story for clues.
What was the change in the low temperature flexibility specification?
True or false: Type-II overrides Type-I, which means the previous specification is no longer valid.
True or false: The ASTM change results in decreased performance factors.
What types of performance properties can be achieved thanks to the new standard?
What specific characteristic of Acronal 4400, now made possible by Type-II, translates to increased energy savings?
A -10°C to -5°C
B -26°C to -10°C
C -26°C to -11°C
D -30°C to -15°C
Coatings initially had to achieve low temperature flexibility at -26°C, but the new specification extends that number to -10°C, which is more applicable to some geographical regions.
The original spec is -26°C, which is not relevant in all regions of the USA. Type-II puts the standard at -10°C, loosening some of the constraints on formulators.
Type-II is an addition to the existing standard. Instead of replacing Type-I, it acts as an alternative.
Actually, Type-II acts as an alternative to the existing standard, so the Type-I spec is still in place.
The new standard enhances several performance metrics, like improved tensile strength and weatherability — and in the case of Acronal 4400, enhanced tear resistance and adhesion.
As a matter of fact, that's false: coatings can now be formulated for improved tensile strength and weatherability. Acronal 4400 also provides better tear resistance and adhesion.
A Improved dirt pickup resistance
B Enhanced asphalt bleed resistance
C Superior mechanical properties
D All of the above
The new standard gives formulators the freedom to make products with better mechanical properties, like Acronal 4400, which also resists dirt pickup and asphalt bleed.
You're only partially right. Stronger resistance against dirt pickup and asphalt bleed, plus better mechanical properties, are all possibilities under Type-II — and a reality with Acronal 4400.
A Increased solar reflectivity
B Early rain resistance
C Reduced CO2 emissions
D A and B
White roof coatings made with Acronal 4400 are better at reflecting the sun's rays, which reduces the building's energy consumption.
That was a tricky one. Acronal 4400 does offer early rain resistance, but improved solar reflectivity is the particular trait that saves energy.