Brandon Whitmore Posted April 6, 2010 Report Share Posted April 6, 2010 Does anyone have a good installation detail showing exactly how the WRB / flashing should be tied into the gas log fireplace vent for a horizontal wall termination? Link to comment Share on other sites More sharing options...
kurt Posted April 6, 2010 Report Share Posted April 6, 2010 Wouldn't it be the same as any horizontal penetration? Check the Tyvek installation guidelines. Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted April 6, 2010 Author Report Share Posted April 6, 2010 It's all too common to see exposed wall sheathing at gaps in caulking around the perimeter, at the corner seams in the exterior vent, etc. I'm surprised I don't see more visible evidence of rot or water intrusion at these fireplace bumpouts. My new construction house today had exposed OSB at the perimeter, which was easy to see since they omitted the caulk. I don't know who manufactured the housewrap, so I was hoping for a good diagram from a credible source to post with the report. I know as soon as I write it up, the contractor is just going to caulk the dang thing and say it's been fixed. Link to comment Share on other sites More sharing options...
Jim Katen Posted April 6, 2010 Report Share Posted April 6, 2010 It's all too common to see exposed wall sheathing at gaps in caulking around the perimeter, at the corner seams in the exterior vent, etc. I'm surprised I don't see more visible evidence of rot or water intrusion at these fireplace bumpouts. My new construction house today had exposed OSB at the perimeter, which was easy to see since they omitted the caulk. I don't know who manufactured the housewrap, so I was hoping for a good diagram from a credible source to post with the report. I know as soon as I write it up, the contractor is just going to caulk the dang thing and say it's been fixed. What about the fireplace manufacturer? - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted April 6, 2010 Author Report Share Posted April 6, 2010 What about the fireplace manufacturer? From what I see, they just say to use silocone caulk. http://www.lennoxhearthproducts.com/res ... C-SLDVT(II).pdf You'll have to copy and paste the entire link for it to open. I'm not sure why the last bit isn't included. Link to comment Share on other sites More sharing options...
Jim Katen Posted April 6, 2010 Report Share Posted April 6, 2010 What about the fireplace manufacturer? From what I see, they just say to use silocone caulk. http://www.lennoxhearthproducts.com/res ... C-SLDVT(II).pdf In that case, I'd just hit them with 703.8 and say that the wall isn't properly flashed to prevent water entry. Explain to the customer that caulk isn't a substitute for flashing and your job is done. If I'm in a grumpy mood, I might add that the customer shouldn't accept a repair that consists of the surface application of caulk. - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted April 6, 2010 Author Report Share Posted April 6, 2010 Thanks Jim, I guess I'm stuck with R703.8 for now. I'll eventually find something that I can slap in the report with a really good diagram. Anyone else have an issue with the way these vents are designed? Link to comment Share on other sites More sharing options...
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