Abcleads.com BBB Business Review  NAHB member
Call us at
1-800-219-5332


All times are UTC - 5 hours





Post new topic Reply to topic  [ 8 posts ] 
Author Message
 Post subject: How Should Window Capping Be Installed
PostPosted: Tue Jul 12, 2016 9:32 pm 

Joined: Thu May 26, 2016 7:15 pm
Posts: 5
Offline
For our vinyl replacement project, all of the existing exterior wood trim around the windows will be wrapped with aluminum coil. A big concern I have is water getting behind the aluminum coil (cap/wrap) and rotting the wood. How should this be installed so that water doesn't get into it. It's my understanding that they will use caulking to keep water out. To me it seems that you're at the mercy of the caulking. Please let me know what are best practices for installing this. We have hard coat stucco for the siding.


Top
 
 

 Post subject: Re: How Should Window Capping Be Installed
PostPosted: Wed Jul 13, 2016 5:03 am 

Joined: Sun Feb 22, 2009 5:52 pm
Posts: 1670
Location: SE PA & NJ; CT
Offline
It really is the skill and care of the installer that makes a good and water tight cap.
First all pieces must be sloped and lapped properly for drainage. second the sealant should be a high grade compatible to the clean surfaces it is being applied to. caulk joints must be large enough to allow for proper stretch of the sealant.
You would be wise to inspect the caulk joints on an annual bases to make sure none have opened up.

theWindowNerd.com


Top
 
 
 Post subject: Re: How Should Window Capping Be Installed
PostPosted: Wed Jul 13, 2016 12:34 pm 
User avatar

Joined: Tue Feb 16, 2010 6:14 pm
Posts: 2352
Location: Milwaukee, Madison areas
Offline
+1. The trim installation should be lapped in such a way where the caulk is of minimal importance to keep out meaningful water intrusion, however it will still perform some function to that end. There is really no way around that. Doesn't matter if it is a roof, siding, windows, etc, sealants are needed to complete a water tight "shield".


Top
 
 
 Post subject: Re: How Should Window Capping Be Installed
PostPosted: Wed Jul 13, 2016 1:41 pm 

Joined: Fri Oct 04, 2013 8:24 am
Posts: 14
Offline
most capping jobs are simple. once the trim is covered and caulked, i wouldnt worry about water.


Top
 
 
 Post subject: Re: How Should Window Capping Be Installed
PostPosted: Tue Jul 19, 2016 11:40 am 
User avatar

Joined: Tue Feb 16, 2010 6:14 pm
Posts: 2352
Location: Milwaukee, Madison areas
Offline
Ricknez wrote:
most capping jobs are simple. once the trim is covered and caulked, i wouldnt worry about water.


I would be careful about that. While yes, capping is not rocket science and it is essentially just a cladding of the existing trim (serving a similar purpose to paint in most cases), it can cause some pretty dire problems when done improperly which happens far too often. It is not uncommon for it to be improperly integrated into the existing flashing system where it can then actually direct water INTO the opening, and into the wall of the home. The most common situation I see is when guys put their top piece of trim right over the existing drip cap on a vinyl sided home, and then caulk it to the j channel.


Top
 
 
 Post subject: Re: How Should Window Capping Be Installed
PostPosted: Tue Jul 19, 2016 11:44 pm 

Joined: Tue Apr 20, 2010 7:11 am
Posts: 449
Offline
I'm with Homesealed, capping is often where the hacks and pro's are separated.


Top
 
 
 Post subject: Re: How Should Window Capping Be Installed
PostPosted: Sat Aug 06, 2016 2:36 pm 

Joined: Fri Mar 11, 2005 3:10 pm
Posts: 249
Location: Twin Cities, Minnesota
Offline
Homesealed explained it perfectly. Our exterior capping application has seperated us from all the others! We bend our capping with brickmould bends to match existing wood brickmould. 90% of the installers here just box bend to save time and money. This way just doesn't work for me.
We go that extra mile and back cut any tight spots where the existing wood meets another surface. We make sure the capping has legs that slide between any J-Bead and existing wood. We take our time installing the capping so it's not bent up and damaged. Some installers just beat it on with a hammer or their fist. We bend it to slip over the existing wood easily. Our capping goes together like a puzzle and there are no holes or ugly corners. We miter all our corners and always use a matching caulk by OSI. Our caulk lines are small and narrow. The caulking is used to seal seams and connections. Good capping just enhances the final product. If applied properly and caulked right, there will be no air or water infiltration. Good Luck!!!


Top
 
 
 Post subject: Re: How Should Window Capping Be Installed
PostPosted: Sat Aug 06, 2016 9:36 pm 
User avatar

Joined: Mon Jan 30, 2006 1:32 pm
Posts: 851
Location: Delaware, New Jersey, Philadephia Area
Offline
Like what Guy is preaching for sure. Homeowners love the brickmold profile bends regardless if it's free hand old school, Van Mark Trim Former, or Tapco's Brake Buddy. It separates the ham and eggers from the elite mechanics.

An outside sales rep recommended a sub to me once that was still face nailing all of his box bends. He told me he does that because he has never had any capping blow off from the wind. I'm assuming any random photo gallery of his projects could make the cover of Fangoria magazine.


Top
 
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: Google [Bot], Google Adsense [Bot] and 13 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group