Installation-Winteq Foam vs Fiberglass Batt

For all those Replacement Window questions
Post Reply
Message
Author
apoteker
Posts: 8
Joined: Wed Jul 20, 2011 9:15 pm

Installation-Winteq Foam vs Fiberglass Batt

#1 Post by apoteker » Mon Aug 01, 2011 10:13 am

I have two different installers wanting to to use two different types of insulation around windows during installation. One uses something called Winteq Foam while the other says he uses a fiberglass batt insulation. If it makes a difference, the foam would be on Simonton 5500 casements and the fiberglass on Sunrise casements. Does it really make a difference what is used? Thanks in advance to all!

User avatar
Windows on Washington
Posts: 4424
Joined: Wed Apr 04, 2007 11:21 pm
Location: DC Metropolitan Area-Maryland/Virginia/DC
Contact:

Re: Installation-Winteq Foam vs Fiberglass Batt

#2 Post by Windows on Washington » Mon Aug 01, 2011 10:19 am

Fiberglass is okay as long as it is air sealed. If not, it is worthless and does nothing for the home.

Inquire as to how he plans to seal the window to home connection.

randy
Posts: 1017
Joined: Tue Dec 20, 2005 11:27 am
Location: Houston, TX
Contact:

Re: Installation-Winteq Foam vs Fiberglass Batt

#3 Post by randy » Mon Aug 01, 2011 3:07 pm

WoW is right, fiberglass is useless if the cavity is not completely airtight. Air passes right through fiberglass, which is why it is often used for air filters.

TheWindowNerd
Posts: 1697
Joined: Sun Feb 22, 2009 5:52 pm
Location: SE PA & NJ; CT
Contact:

Re: Installation-Winteq Foam vs Fiberglass Batt

#4 Post by TheWindowNerd » Tue Aug 02, 2011 4:51 am

I agree with both of my peers. Additionally foam has water sealing advantages.
So it insulates, air seals, and water seals.

User avatar
HomeSealed
Posts: 2412
Joined: Tue Feb 16, 2010 6:14 pm
Location: Milwaukee, Madison areas
Contact:

Re: Installation-Winteq Foam vs Fiberglass Batt

#5 Post by HomeSealed » Wed Aug 03, 2011 4:22 pm

One more vote for foam. :D

apoteker
Posts: 8
Joined: Wed Jul 20, 2011 9:15 pm

Re: Installation-Winteq Foam vs Fiberglass Batt

#6 Post by apoteker » Thu Aug 04, 2011 9:39 am

Thanks for all of the replies. The installer who wants to use fiberglass has additionally said that using foam will void a majority of the warranties on vinyl replacement windows because it can expand and shift the postion of the window causing problems with opening and closing. Ever heard of that explanation?

EcoStar Remodeling
Posts: 210
Joined: Thu Jul 28, 2011 5:28 pm

Re: Installation-Winteq Foam vs Fiberglass Batt

#7 Post by EcoStar Remodeling » Thu Aug 04, 2011 10:12 am

I'm not aware of any manufacturer who considers the use of foam something that would automatically void their warranty per se. However, anything done during the installation process that cause the window to fail will invariably void any warranty. So if the installer uses standard foam that is made to seal holes in brick and misapplies it causing the frame on a vinyl window to bow, that will void the warranty. However, using low expanding foam properly will not bow the frame and thus, the proper use of it will not affect the warranty.

User avatar
HomeSealed
Posts: 2412
Joined: Tue Feb 16, 2010 6:14 pm
Location: Milwaukee, Madison areas
Contact:

Re: Installation-Winteq Foam vs Fiberglass Batt

#8 Post by HomeSealed » Thu Aug 04, 2011 5:18 pm

Eco is right on.. In the past there were some manufacturers who said it could not be used, however, pretty much everyone is on board now. The key - as Eco alluded to- is proper choice of material (low-expansion, closed cell), and proper application.

Post Reply