I'm considering insulating my attic ceiling using a foam kit. Doing a bit of research tells me that air sealing and proper ventilation are key
I live in Long Island NY and currently have about R-19. The house is 2400 sqft and the attic floor is 20' x 26' = 530 sqft. I've not measured the attic ceiling square footage, but its about a 45 degree angle, so I know its going to be more sqft than 530 sqft. The house does have soffits and a ridge vent.
I know I should put baffles before spraying any foam, but I don't know what to do about that ridge vent. How do I ensure the air going into the baffles goes out the ridge vents? I've not heard of a material to get that would connect the baffles to the ridge vent.
My goal is to insulate the attic ceiling since we want to keep the attic floor for storage. I'm considering doing this myself since the quote I received was $6400 and there's no way I can afford that now or in the near future.