Originally Posted by japacker
I have the same vent cover and the same vent. Installation requires removal of 4 screws to replace with screws that come with the vent. I looked at my vent on the roof and there should be 8 screws on each side, there are none. So what do I do now drill for the screws?
You have a clamp style, same as the one I have.
You can call email fantastic vent company and they will email you a set of instructions, that towards the end of the instructions, has exact measurements for drilling four holes. Quite easy to do.
Or send me a PM your email and I'll forward the same instructions.