9/5/08

Plywood Roof Sheathing



We knew that we'd run into surprises---things we hadn't thought through, unexpected aspects, etc. There have been a number of them in the process of roofing. One mistake we made was to try to marry a rough, inexact, forgiving building style to standardized 4' x 8' plywood sheathing. The problem is that the edges of the plywood have to actually have a rafter underneath to nail to. And 4' x 8' is 4' x 8'. Always. But as thoroughly as we (actually more knowledgeable friends who were helping) tried to measure for, mark, and square the rafters, we forgot that the rafters and their measurements were based on a post and beam framework that was cut with a chainsaw.
In some places we have had to sister extra pieces to the rafters. If we were to do this again, we would recommend planking as a sheathing more suited to such an inexact building method.

2 comments:

Anonymous said...

Hi Joe and Kyle,



Nice blog site! Thanks for sharing your project with us.



I wonder about the roof pitch. Even with a metal roof you may have to shovel it a few times in a snowy year. I had a large wood shed in Solon that looks about the same pitch and I did have to shovel it a couple times each winter out of fear that the static load caused by the accumulated snow was getting too great for the structure. The convenient thing is that one can walk on the roof with out staging!



Best of luck with your project, Jack

Anonymous said...

Hey Jack! Yes, we have talked about this and you're probably right. The pitch is 1:12. But you're also right that it's a roof you can walk on---and it's not too high, so it shouldn't be too hard to rake or shovel now and then. Much easier than our current two-story, poorly insulated house that spawns huge ice dams if the snow builds up!

Hope all is well,

Kyle and Joe