Hi all, I think this might have already been clarified somewhere, but I cannot find an official answer. Apologies if I might be ripetitive. Seemly, it's quite impossible to find NAUF plywood in Ireland and UK. All suppliers and manufacturers seem to follow European E1 Standard for UF emissions. I understand that timber in general can have UF and I have to look for NAUF, but does that mean that I have to totally refuse any E1 plywood or forget about the credit point if suppliers cannot confirm NAUF? I have already checked the LI 10250... "E1 yes or no"?

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soha yamani

Senior Sustainability Engineer

Metec Consultants

LEEDuser Basic Member

12 thumbs up

Sun, 11/11/2018 - 08:45

any updates on that?

Linda Davisson

Senior Sustainability Strategist

Jacobs Engineering

LEEDuser Premium Member

149 thumbs up

Sun, 11/11/2018 - 16:28

Exterior grade plywood contains phenol formaldehyde (not urea formaldehyde), so if it is exterior grade plywood, it is acceptable for NAUF. I hope that may help.

Debra a. Lombard

Construction Administrator/ LEED AP

Bywater Woodworks, Inc.

LEEDuser Basic Member

42 thumbs up

Mon, 11/12/2018 - 19:09

Looks like the European classification E1 does not restrict Urea-Formaldehyde; E1 is just a maximum formaldehyde level. So possibly E1 could contain UF.

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