Can I install 1/4-inch fan-fold board instead of rafter vent chutes?
I live in ohio. zone 5, and was thinking to add blown in insulation to my attic to bring the r value to r39. right now I have existing fiberglass insulation with some blown insulation on top. It’s has partly wood down for some storage which I plan to build the outside up to hold the blown insulation off the walk way. Question I have is I have to install rafter vent chutes from the eve to stop the insulation going into the eve. I was wondering if I buy 1/4in fan fold board which comes in 50ftx4ft . It would be cheaper and easier to install than buying rafter vent chutes and install them to each rafter bay on the sheathing. I was hoping to just nail the fan fold to the under side of the rafter from the eve up the length of the board which would create a vent chute that insulation couldn’t get into the eve
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