I’m replacing the cedar shingles on an old house that also has corner boards and am wondering how much special attention I should pay to the area where the shingles meet the boards in terms of keeping water out. I plan to caulk the shingle/board joint but should I also do something like run a vertical piece of 15# felt up the corner first(after I cover the walls)? I’ve also seen or read about using something like aluminum flashing all the way up the corner of the house. Is this better? How about Ice shield, would that be overkill? Any guidance appreciated!!
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sure, double up the felt at the corner if you want to. how exposed is the corner to the weather...where does the weather usually come from, what's the overhang at the corner, etc. do something appropriate for the situation.
best, GO
GO- The overhang is about 10" on both walls but we do get a fair amount of wind driven rain and the house sits on a little rise so we're somewhat exposed...so, yeah, maybe just doubling up on felt will be ok.
It sounds like I really can't go wrong with either approach (2x felt or Ice Shield), and caulking as I install shingles was exactly what I had in mind.
Thanks for the info, Ron
the Vycor might be overkill but wouldn't hurt.
I run an extra slip of the 15# felt verticle behind the edge of the corner board. Then to caulk, I run it just before setting the shingle so it is embedded into the caulk. That way you don't see the caulk and don't worry about it peeling off.
If you really want to insure a weather tite corner your best option is to weave yor shingles at the corners, inside and out. Other than that, pay close attention to the fit at the corner boards with the shingle.
I think a single layer of 15# felt is more than adequate. In fact I just run red rosin around the corners and use no felt at all. I find that red rosin paper drys out more quickly than felt ( both absorb water) and may actually work better at keeping the sheathing dry.
I caulk and sometimes don't caulk, but if I do it is always on the sheathing side of the siding as was mentioned. This allows water that does get behind the siding to migrate out rather than being trapped by surface caulk. Also the protection of the siding will prolong the effectiveness of the caulk.
The latest issue of JLC had ####advice on this very topic ( pg 44. sorry no link) . The detail concerned clapboards, but the conclusion was that caulking may promote more moisture in the area.
david
walk good
As I learn more about this computer I am amazed at what I can do. I found the link. Hope I did the technology correctly.
http://www.jlconline.com/cgi-bin/jlconline.storefront/3cab3079002c31ec271a401e1d290610/Product/View/0204onth
Edited 4/3/2002 11:44:56 AM ET by DTHODAL