Tar Paper Siding. Lay the first strip of tar paper side to side, with its bottom edge along the edge of the roof. Your friend is a tradesman speaking from a. I've tried all sorts of writing instruments including a sharpie and nothing works.
Try not to tear the tar paper as you lay it, because that leaves your roof vulnerable to water damage.
Seal all sides of the cedar before you nail it up. Apply tar paper directly to the plain plywood or other material that defines the shape of your roof. Note real colors likely different than your computer monitor. Tar paper is a waterproof building material that serves as an underlayment in building construction. Works like a charm after the first course is up. Tar paper over plywood, then 1 by 3 boards nailed horizontally every 24 up and down. Verticle siding, drainage plane, and tar paper house wrap. About 0% of these are roofing felts, 25% are waterproof membrane.
