SPRI announces plans to revise test standard for external gutter systems

June 1, 2026 at 4:00 p.m.

This standard provides methodology for the structural testing of Gutters used with low-slope roofing.

SPRI, the association representing sheet membrane and component suppliers to the commercial roofing industry, announced that ANSI SPRI GT-1 R2022 Test Standard for External Gutter Systems is being revised and will be re-canvassed for approval as an American National Standard.

This standard provides methodology for the structural testing of Gutters used with low-slope roofing. This standard specifies structural testing for external Gutters used with low-slope (2 in 12 or less) roofing. This standard does not address water removal or the water-carrying capability of the Gutter as other building codes already address this issue. This Standard does not consider downspouts or leaders.

The GT-1 Standard was first approved as an ANSI standard in 2015. This standard is now undergoing its regular review as required by SPRI’s ANSI procedures.

Those wishing to participate in the canvass process may contact SPRI at info@spri.org.