I'm building quite a few trusses and gluing them up with D4 adhesive ( similar to titebond 2 ). It says not to use below 10 degrees. I'm sure that's being extra cautious. Realistically how low Will it still work?
This may be extra cautious (I really don't know) - but the consequences of glue failure after the trusses have been installed would be fairly problematic.
I would not take the risk - although for a smaller job which could be rectified if necessary I may take the risk