Question on Hood vent pipe installation
I am about done with the kitchen remodel, only a couple of things left. I am about to install my new ModernAire hood, Fantech silencer, and Abbaka HyEx-14 blower and I have a question about the vent piping.
I have installed dryer vending and I know that it isn't screwed and the joints go in the direction of the airflow. In other words, the crimped end points toward the outside.
A quick read of various materials makes it appear that this type of pipe may be screwed and there is no mention of a direction for the joints. The silencer has slip on connections with rubber seals, same on both ends, and no apparent screw points.
The conflicting information leaves me uncertain if there is a directionality for the pipe and if it should be screwed at joints or not. Can someone give me a pointer on this?
I live in San Jose, CA if that makes much of a difference.