Slide 54 and test question 10 of the online course Using 1-Part Polyurethane Adhesives in Roofing (DO-EN-21001-0908) states that an FM 1-90 rating refers to an uplift pressure of 90 lbs per square inch. The 90 is actually in pounds per square foot (psf).

This was an over sight on our part, thank you for bringing this to our attention. We have made the correction to the course and test questions.

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