Proper Installation of Eave Baffles
My name is Jeremy. I’m new to this website/forum. I’ve been in the residential design industry for 14 years now, and I’m getting into green building/energy efficient building more with each passing year.
Question for all of you. I’ve tried researching this a bit online, without a clear answer. And I’m asking as a homeowner, not as a designer (though I’m sure this will have ramifications for my work as well).
I live in a house in Southern Maryland, and the house was built in 1968. It’s a tri-level house, and it’s not terribly energy efficient. The attic had 6″ of insulation in it until a week ago. I just hired a company to bring me up to R-49 with blown cellulose (they put wet-spray in to 18″ to account for settling). They also air-sealed everything and put in a panasonic whisper bath fan for indoor air quality.
They also did baffles between every rafter down at the eaves. This is where my question comes in. The baffles they had were foam, and they were 24″ wide baffles. They cut them in half (perforated I believe) and stuck them in my cavities. However, my rafters are 16″ o.c…so the baffles don’t take up the entire cavity. I was pretty sure that the baffles really need to be extending from inside-of-rafter to inside-of-rafter. Am I wrong on that? Will this cause problems (moisture, lack of ventilation – even though there was no baffles at all before last week, etc?)
Thanks for your thoughts in advance!
Looking forward to participating on the forum.
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