Denray Posted April 27, 2017 Report Share Posted April 27, 2017 Stucco siding with vinyl framed windows added. What would have been the right way to do this, in a nutshell? Quote Link to comment Share on other sites More sharing options...
Marc Posted April 27, 2017 Report Share Posted April 27, 2017 (edited) In this case, for self-flashing windows, a gap of about 3/8th is left along all four sides of the window, between the wood and the stucco. A solid rubber tubing is inserted into the gap, then the gap is sealed with elastomeric caulk. The rubber backing imparts an hourglass profile to the cross-section of the caulk so that the narrow part of the caulk will contract and expand rather than cause failure of the bonds between caulk and wood or caulk and stucco. Where the cornice is so far above the window that the siding above the window sees rain, the top of the window is flashed instead of caulked. Marc Mike: It would nice if the posts of a thread were numbered like before, not that it's absolutely needed. Edited April 27, 2017 by Marc Add message for administrator Quote Link to comment Share on other sites More sharing options...
Denray Posted April 27, 2017 Author Report Share Posted April 27, 2017 That flang laying against the stucco is not the way to do it, right? Quote Link to comment Share on other sites More sharing options...
Marc Posted April 27, 2017 Report Share Posted April 27, 2017 I'm not sure what's being referred to as flange. Is there j-channel installed? Marc Quote Link to comment Share on other sites More sharing options...
Denray Posted April 27, 2017 Author Report Share Posted April 27, 2017 (edited) In a perfect world shouldn't this not be exposed? Does this look proper? Edited April 27, 2017 by Denray Quote Link to comment Share on other sites More sharing options...
John Fryer Posted April 27, 2017 Report Share Posted April 27, 2017 27 minutes ago, Marc said: In this case, for self-flashing windows, a gap of about 3/8th is left along all four sides of the window, between the wood and the stucco. A solid rubber tubing is inserted into the gap, then the gap is sealed with elastomeric caulk I've never heard the phrase "self-flashing". Seems misleading if no flashings are involved and it's only caulking. When you say "solid rubber tubing" are you talking about foam backer rod? My first post here and my name is John Fryer. I'm a home inspector in Berkeley California. Quote Link to comment Share on other sites More sharing options...
Marc Posted April 27, 2017 Report Share Posted April 27, 2017 7 hours ago, John Fryer said: Quote I've never heard the phrase "self-flashing". Seems misleading if no flashings are involved and it's only caulking. After checking this out further, I have to agree with you: It's a industry-created selling point with no real value. Another myth hits the dust. All window ROs need flashing. Quote When you say "solid rubber tubing" are you talking about foam backer rod? Yes. Marc Quote Link to comment Share on other sites More sharing options...
Marc Posted April 27, 2017 Report Share Posted April 27, 2017 (edited) 7 hours ago, Denray said: In a perfect world shouldn't this not be exposed? Does this look proper? Looks like part of the window frame to me but I haven't seen a window quite like this one. I do see a narrow, unsealed gap in there. Nope, doesn't look kosher. Marc Edited April 27, 2017 by Marc Quote Link to comment Share on other sites More sharing options...
Greg Booth Posted April 28, 2017 Report Share Posted April 28, 2017 ..........I believe it's a very typical vinyl, prime window with a built-in J-mold/nailing flange. The stucco substrate has been extended into the J receiver and the stucco applied. It appears to be located in an area protected by a deep roof overhang - simple caulking may be all that's needed..............Greg Quote Link to comment Share on other sites More sharing options...
Gibsonguy Posted April 28, 2017 Report Share Posted April 28, 2017 Mark has the right reply: backer rod and caulk is necessary for stucco and EIFS installations to manage expansion and contraction between two different materials.Openings can allow moisture to enter and get trapped in the wall. Typically these are face systems with no drainage plane. The overhang may or may not protect it, but it's not done properly. Quote Link to comment Share on other sites More sharing options...
Denray Posted April 28, 2017 Author Report Share Posted April 28, 2017 Thanks for the replies all. Quote Link to comment Share on other sites More sharing options...
John Kogel Posted April 29, 2017 Report Share Posted April 29, 2017 If I may add, since you asked for it in a nutshell, in a nutshell, the 'self-flashing' window is not all it's cracked up to be. [:)] Quote Link to comment Share on other sites More sharing options...
Denray Posted April 29, 2017 Author Report Share Posted April 29, 2017 That's what I figgerd. Seen em on mobile homes. Smooshed up on stucco can't be much better. Quote Link to comment Share on other sites More sharing options...
mjr6550 Posted May 4, 2017 Report Share Posted May 4, 2017 As others have stated, windows are not self-flashing. A gap (typically 1/4"), backer rod and caulk are needed, along with head flashing. Windows with integral flanges intended for use with vinyl siding are not suitable for stucco. They are WRONG. I believe some manufacturers supply filler strips for these, but I have not seen any documentation about that recently. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.