Thank you for your comments and clarification. My information was taken from the EPA website on formaldehyde. They would welcome your insights as to ways they could improve the information they provide to the public.

From personal experience, I would agree that OSB does not emit large amounts of formaldehyde. When we remodeled our bedroom, we added OSB shear walls on 3 sides of the room. With doors and windows closed, formaldehyde was below 0.05 ppm.

Thank you for your comments and clarification. My information was taken from the EPA website on formaldehyde. They would welcome your insights as to ways they could improve the information they provide to the public.

From personal experience, I would agree that OSB does not emit large amounts of formaldehyde. When we remodeled our bedroom, we added OSB shear walls on 3 sides of the room. With doors and windows closed, formaldehyde was below 0.05 ppm.

You then correctly stated that products that have exterior grade resins (like phenolics) are preferable to interior grade adhesives. Structural plywood and OSB both fall into this latter category. They are made with exterior adhesives. As such, they are exempt from CARB regulations.

I would offer up the following modifications to your article.
-Remove oriented strand board from the first list. Also clarify that you are talking about interior grade plywood in that same list.

-Add a sentance at the end of the third bullet in the list of ways to reduce formaldehyde, “Such products include structural plywood and oriented strand board.” You could get more specific and say, “Such products include structural plywood and oriented strand board that bear trademarks showing conformance to U.S. Product Standard PS-1 and PS-2, respectively.”

Let me know if you have any questions.
Tom Kositzky
APA

You then correctly stated that products that have exterior grade resins (like phenolics) are preferable to interior grade adhesives. Structural plywood and OSB both fall into this latter category. They are made with exterior adhesives. As such, they are exempt from CARB regulations.

I would offer up the following modifications to your article.
-Remove oriented strand board from the first list. Also clarify that you are talking about interior grade plywood in that same list.

-Add a sentance at the end of the third bullet in the list of ways to reduce formaldehyde, “Such products include structural plywood and oriented strand board.” You could get more specific and say, “Such products include structural plywood and oriented strand board that bear trademarks showing conformance to U.S. Product Standard PS-1 and PS-2, respectively.”

Let me know if you have any questions.
Tom Kositzky
APA