Flat & Non-Flat Paint

I'm not aware of any shortcut to categorizing a flat or nonflat coating absent the manufacturer's declaration. In the U.S., Canada and the EU countries that have adopted the Decopaint Directive, all manufacturers are subject to a stringent regulatory system and would make specific marketing claims for categorization purposes. You could try going to back to the manufacturers and ask them to work off of the Rule 1113 or GS-11 definitions and limits. LEED is meant to be an incentive system to encourage everyone involved to reduce the impacts of materials. Ideally, they will respond to a perceived market advantage. Is this project in North America?

Hi Abdulrahman, I generally look at the product data under Finish where they define the coating in terms of degrees on a meter. A flat paint will register less than 15 on an 85-degree meter, or less than 5 on a 60-degree meter. If it registers greater than either of those, it's a non-flat. A comparable definition is somewher in the glossary of the LEED reference manual.