Cedar Breather and woven corners
northerntimbers
| Posted in Construction Techniques on
We are siding over “cedar breather” and the corners are difficult but seem to be working out. Will they hold up not being nailed to solid material underneath?
Replies
Responding over the mountain from Warren...
Cedar Breather was designed to be used under cedar roofing as an alternative to traditional skip sheathing.
I don't see the need for it under sidewall shingles. 15# felt works fine as a breathable underlayment/rain screen.
And I certainly wouldn't consider using it with woven corners.
Solar & Super-Insulated Healthy Homes
What he said from the horizontal water front rains of Chatham MA.
Tough call.
Are you sure you don't mean their product called Rainslicker made for sidewalls?
I am thinking that I would be ripping some 1/4" strip to shin the corners with and but the rainslicker to that.
I have seen situations where the rainscreen slicker would have prevented damage and helped the cedar siding to have lasted longer, but for the most part, the earlier comments are true - there is little need for it under cedar shingles
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there is little need for it under cedar shingles
Didn't you mean "cedar WALL shingles"?http://grantlogan.net/
Today we's learnin' about rawks. They's all kinds of rawks. These [picks up rock] is rawks which you throw. These here [throws rock at Rusty] is rawks that you get hit with. E.Cuyler
Yeah - that was the context. I didn't mean to generalize it further.
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Check out Master Carpenter last year on preassembling outside woven corners. I can't remember the issue #. The system allows you to make the woven corner peices and glue them up ahead of time then install on the walls over the rainscreen matrix without much hassle.
Piffin's option is one I've used as well - pack out the corners with strips to match the matrix. Alternatively, you can install 1 1/2 in. wide wood strips - again matching the matrix thickness - at each nail line of the shingles. This way you get a crisp corner to install the shingles to and still have some air movement behind them.
There's some dissagreement among building scientists about whether or not there should be air-flow behind the siding at corners. Some say it's good, others say in high wind conditions it's bad because you get some pressure differences in the air space from one side to another that can cause water intrusion. I guess we'll know in another 50 years when we see what the real world reveals.