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 Figure 4-3. Glulam arches with rating 80. (A) This slight delamination
near outer edge of a section of arched top chord of a truss would result in
a rating of 80 if it were part of an arch.
Figure 4-3. (B) Slight delamination associated with butt joints in a glulam
section. Butt joints are potential sources of structural problems and are not
permitted by today's standards. If found in glulam arches, these
non-structural joints should be specifically noted.
(C) Discoloration at the split in an arch base indicates possible
Figure 4-3.
localized decay.
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