Admiral Home Inspections - Feel Safe About Your Investment.
RSS Follow Become a Fan

Recent Posts

Built- in Humidifiers
crawl space moisture problems
Crawls Space Problems-inspections
Atiic insulation for the DIYer
Deadly Mistakes A Home Buyer Should Know

Categories

fall 2013
FAQs
Spring 2013
summer 2013
winter 2014
powered by

My Blog

failure in double pane windows

 
 
 
Condensation is the accumulation of liquid water on relatively cold surfaces.
 
 
Almost all aircontains water vapor, the gas phase of water composed of tiny water droplets.The molecules in warm air are far apart from one another and allow thecontainment of a relatively large quantity of water vapor. As air cools, itsmolecules get closer together and squeeze the tiny vapor droplets closertogether, as well. A critical temperature, known as the dew point, exists wherethese water droplets will be forced so close together that they merge intovisible liquid in a process called condensation.
 
Double-pane windowshave a layer of gas (usually argon or air) trapped between two panes of glassthat acts as insulation to reduce heat loss through the window. Other types ofgas used in this space have various effects on heat gain or loss through thewindow. Some windows also have a thin film installed between panes thatseparates the space between the panes into two spaces, further reducing heat lossand heat gain through the window. If multiple-pane windows appear misty orfoggy, it means that the seal protecting the window assembly has failed.
 
Silica Desiccant:
 
A desiccant is anabsorbent material designed to maintain dryness in the space it protects. In adouble-paned window, silica pellets inside the aluminum perimeter strip absorbmoisture from any incoming air that enters the space between the panes. If notfor the silica desiccant, any moisture in the space between the panes wouldcondense on the glass as the glass cools below the dew point temperature.
 
Silica gel has animmense surface area, approximately 7,200 square feet per gram, which allows itto absorb large amounts of water vapor. As the sealant protecting this spacefails over time, increasing amounts of moisture-containing air will enter thespace between the panes, and the silica pellets will eventually becomesaturated and will no longer be able to prevent condensation from forming. Adouble-paned window that appears foggy or that has visible condensation hasfailed and needs to be repaired or replaced.
 
Why Double-Paned Windows Fail:  Solar (Thermal) Pumping
 
 
Although double-paned windows appear to be stable, they actuallyexperience a daily cycle of expansion and contraction caused by thermalpumping. Sunlight heats the airspace between the panes and causes the gas thereto heat up and expand, pressurizing the space between the panes. At night, thewindow cools and the space between the panes contracts. This motion acts likethe bellows of a forge and is called thermal pumping.
 
 
Over time, theconstant pressure fluctuations caused by thermal pumping will stress the seal.Eventually, the seal will develop small fractures that will slowly grow insize, allowing increasing amounts of infiltration and exfiltration of air fromthe space between the panes.
 
Failure Factors
 
Windows on the sunnyside of a home will experience larger temperature swings, resulting in greateramounts of thermal pumping, seal stress and failure rates.
 
Vinyl window frameshave a higher coefficient of expansion resulting in greater long-term stress onthe double-pane assembly, and a higher failure rate. Windows also experiencebatch failure, which describes production runs of windows, especially vinylwindows, that are defective, meaning that the pane assemblies have beenmanufactured with seals that have small defects that will cause the window tofail prematurely.
 
The Nature of Damage
 
If it’s allowed tocontinue, window condensation will inevitably lead to irreversible physicalwindow damage. This damage can appear in the following two ways:
 
river bedding: Condensed vapor between the glass panes will formdroplets that run down the length of the window. Water that descends in thisfashion has the tendency to follow narrow paths and carve grooves into theglass surface. These grooves are formed in a process similar to canyon formation.
 
silica haze:  Once the silica gel has been saturated, it will beeroded by passing air currents and accumulate as white “snowflakes” on thewindow surface. It is believed that if this damage is present, the window mustbe replaced.
 
Detecting Failure
 
Condensation is notalways visible. If the failure is recent, a failed window may not be obvious,since condensation doesn’t usually form until the window is heated by directsunlight. Windows in the shade may show no evidence of failure, so inspectorsshould disclaim responsibility for discovering failed double-paned windows.
In summary, condensation in double-paned windows indicates that the glazingassembly has failed and needs repair or replacement. Visible condensation candamage glazing and is the main indication of sealant failure.
 
 

68 Comments to failure in double pane windows:

Comments RSS
rolex replica uk on September-10-13 1:36 AM
good article! i like it!
Reply to comment
 
Traffic Management Courses on March-02-14 4:05 AM
This is a really good read for me, Must admit that you are one of the best article i ever saw.Thanks for posting this informative article.


Microsoft Office Professional Plus 2010 on December-22-16 2:01 AM
windows 7 home premium free activation key , free window 7 key , how to get product key for microsoft windows 7 professional , Microsoft Office visio pro 2013 & Download , windows 10 activation l , buy Office professional 2016 product key online , windows 10 activation with hyper-v virtual , windows anytime upgrade key home basic to professional , sKlHkD
office pro 2016 buy
windows 10 product keys and iso download
Genuine windwos 7 pro keys and download
windows server 2016 essentials key sale online
buy cheap windows 10 professional product key


cabas Vanessa Bruno cuir on September-15-13 4:53 AM
Jusqu'ici, nous avons discuté à propos de Vanessa Bruno comme si n'importe qui peut se permettre de posséder un Sac Vanessa Bruno.
Reply to comment


Avondjurken on September-16-13 12:03 AM
Wow! I didn’t comprehend that definitely such aspect as outstanding internet site. I was only searching for online estate agents like SellmyHome and your dans birthday 06 emerged in my monitor. This can be an exceptional page which I just need to save!
Reply to comment


sunglass on September-17-13 1:22 AM
Good to know that such kind of posts are there to help ignorant and novice people.
Reply to comment


Cobblestones on September-22-13 10:38 PM
The issues you discussed with us about double pane windows was really well. i also agree with the things about condensation of vapors. Thanks for updating such useful post.
Reply to comment


Ship blinds on October-03-13 12:26 AM
Excellent Blog. I really want to admire the quality of this post. I like the way of your presentation of ideas, views and valuable content. Thanks for sharing. The postings are very unique and also outstanding performance with the new creativity
Reply to comment


Privacy Film on October-03-13 12:48 AM
Everything is very open and very clear explanation of issues. Was truly information. Your website is very useful. Thanks for sharing
Reply to comment


Shielding Your Car with the Solar Films on November-08-13 4:20 AM
Once again feeling happy and proud to say that this is my favorite Blog.The postings are very unique and also outstanding performance with the new creativity and Excellency with the new different ideas and concepts. Really I am waiting for some more new posts from you. Keep up your excellency and efficiency in this same levels.
Reply to comment


New classic home furniture catalog on November-08-13 7:15 AM
I am sure that the informative you shared through your post is useful for people. I am impressed with the way of writing.
Reply to comment


Sun blinds for ships on November-29-13 3:34 AM
Very nice blog on this website. It is really difficult to get this kind of with useful information. I am relieved I came upon this site. I will eagerly look forward to your upcoming updates.
Reply to comment


Gold Coast End Of Lease Cleaning on January-29-14 3:11 AM
Nice informative post.. I have faced similar double pane window problem earlier and need to call an expert to sort it out.
Reply to comment


Jenny Cathy on January-31-14 2:53 AM
Having read this I thought it was very informative. I appreciate you taking the time and effort to put this article together. I once again find myself spending way to much time both reading and commenting.
Reply to comment


bond cleaning alice springs on February-19-14 12:07 AM
This is an impressive post and you share the important information about Failure in double pane window. i am happy to the presentation of the post and please share the next post fast.
Reply to comment


Office Supplies Brisbane on March-16-14 7:25 AM
It proved to be Very helpful to me thank for sharing..
Reply to comment


Aaron Shelay on March-29-14 4:34 AM
I definitely agree with what you are saying, agree with you on many of your original ideas here. You’ve done a great job of making this very interesting and clear. Thank you.
Reply to comment


Amsden Kelven on May-28-14 11:50 PM
Thanks for sharing your views. Great blog here.. It’s hard to find quality writing like yours these days. I really appreciate people like you. I would like to thank for the efforts you have put in writing this blog. I am hoping the same high-grade blog post from you in the upcoming days as well. A web designer must be very knowledgeable.
Reply to comment


szkolenia florystyczne wrocław on July-06-14 8:03 AM
the creation plus rendering of non commercial room design tired along with comfortable side, it happens to be unescapable present, and consequently an enhanced risk
Reply to comment


Amsden on August-18-14 4:43 AM
I will have a trial of this idea as soon as I got the pattern. Thank you for constantly posting of so many useful tips. They are such a great help to me. Thank you very much!
Reply to comment


Richardson on October-15-14 1:32 AM
I have to admit that I always follow your website because it is full of various information about Warehouse Space, thanks about this info that I got from you.
Reply to comment


victorinox swiss watches on December-31-14 12:37 PM
Spot on with this write-up, I truly think this website needs way more consideration. I'll in all probability be once more to read far more, thanks for that info.
Reply to comment


big face watches on February-02-15 1:16 AM
Awesome post Interesting info to know
Reply to comment


profile on September-12-15 10:39 PM
The installing window also needs to become matched to elementary options that come with the exact interior This many enhances delete word the kitchen which pay attention to each individual tiny detail
Reply to comment


graniet tafelblad on January-24-16 12:30 PM
I believe that this information will be beneficial to travel marketers to plan their strategies.
Reply to comment


De Satg on February-22-16 3:47 AM
promo codes for nba shop wholesale mlb jersey nba pro shop coupon
Reply to comment


All Size of Cosmetic Tubes on April-29-16 6:04 AM
This has actually sparked up an idea in my mind. This really is a great web site article.
Reply to comment


Voss on July-15-16 11:24 AM
nfl elite jerseys youth mllb jerseys cheap
Reply to comment


Repliche Orologi Rolex on August-14-16 8:51 PM
Condensation is the accumulation of liquid water on relatively cold surfaces.
Reply to comment


Elia on December-02-16 4:26 PM
cheap nfl elite jerseys - Up to 89% off for wholesale Kenneth Acker jerseys and free shipping. I visit day-to-day some sites and blogs to read posts, however this webpage presents feature based content.
Reply to comment


Null on December-29-16 2:30 AM
How to get soccer jerseys from china wholesale? Tips you may used. Ducks 8 Marcus Mariota Green Rose Bowl Special Event Stitched Youth NCAA Jersey
Reply to comment


Milner on December-29-16 10:58 PM
wholersale china direct nffl nike jrsey wholesale
Reply to comment


Logan on January-01-17 7:15 AM
Great place to order nike limited jersey review by Paypal. Shane Lechler
Reply to comment


Nail on January-17-17 5:55 PM
Who do you want to gift for cheap Corey White jerseys? Get value into the page: cheap custom sports jerseys
Reply to comment


Colvin on February-04-17 2:43 PM
cheap nfl authentic jerseys from china free shipping - Professional Cheap Nfl Jerseys China Authentic Outlet Sale, baseball jerseys custom cheap From China Store for NFL Fans. Buy Discount NFL Football Jerseys, Hockey jerseys here. Excellent website. Lots of helpful info here. I am sending it to a few pals ans additionally sharing in delicious. And obviously, thanks to your sweat!
Reply to comment


Brito on February-12-17 3:57 PM
I do not know whether it's just me or if perhaps everyone else encountering problems with your site. It appears as if some of the written text within your posts are running off the screen. Can somebody else please provide feedback and let me know if this is happening to them too? This could be a issue with my web browser because I've had this happen before. Appreciate it cheap nba jerseys
Reply to comment


Howchin on February-17-17 12:03 AM
Great place to order cheap jerseys free shipping by Paypal. cheap jerseys online
Reply to comment


Almeida on February-24-17 7:47 PM
nba jersey shop new york - What's more,the nba jersey sales numbers elite/authentic/limited/replica for sale. Do you have any video of that? I'd want to find out more details.
Reply to comment


Halverson on February-27-17 9:39 PM
football jerseys china - China nfljerseys, NHL, MLB, NCAA, and other Low Price Jerseys from best jerseys suppliers and wholesalers, free shipping service and authentic quality sports jerseys.
Reply to comment


Whalen on April-04-17 11:52 PM
I am cheap 49er jerseys from china supplier online, take coupon code here: custom made hockey jerseys
Reply to comment


Cockrell on April-08-17 11:10 AM
How to get mlb jerseys china? Tips you may used. cheap Xavier Su'a-Filo jerseys
Reply to comment


Accounting Software Development on April-14-17 8:17 AM
Thanks for the post.
Reply to comment


Haly on April-20-17 12:30 AM
Great place to order cheap Garrett Celek jerseys by Paypal. italy hockey jersey
Reply to comment


Vandiver on April-20-17 8:35 AM
cheap nhl jerseys online Amazon Shopper online retail,with link: http://detroittigersjerseys.page.tl/
Reply to comment


McKibben on May-03-17 10:00 AM
I just like the helpful info you supply in your articles. I'll bookmark your weblog and check once more right here regularly. I am moderately sure I will be told lots of new stuff proper right here! Best of luck for the next! post438
Reply to comment


Shuman on May-11-17 7:20 PM
discount super bowl jerseys | Authentic Baseball Jerseys Cheap site is the best site to buy Bronson Hill Jersey! A complete selection of American football jerseys, Cheap Authentic hockey Jersey and baseball.
Reply to comment


Marra on May-24-17 1:50 PM
soccer jerrseys cheap ftee shipping nike football nfl
Reply to comment


Napoli on May-29-17 2:41 PM
Hi all, here every person is sharing such experience, so it's good to read this weblog, and I used to go to see this blog everyday. wholesale nfl jerseys
Reply to comment


Lacy on June-02-17 11:04 AM
cheap stitched jerseys - 83 Damian Copeland Jersey authentic china online,Custom personalized jerseys china from us.
Reply to comment


Wardill on June-04-17 6:17 AM
baseball jerseys for women.Buy Cheap Authentic Nhl Jerseys from China Toby Johnson Jersey factory, free shipping and easy returns also best service.
Reply to comment


Athaldo on June-05-17 10:14 PM
Nike Dolphins 17 Ryan Tannehill Orange Alternate Mens Stitched NFL Elite Jersey.Professional Cheap Jerseys Nfl Nike Outlet Sale, Bears 34 Walter Payton Blue Stitched NFL Jersey From China Store for NFL Fans. Buy Discount NFL Football Jerseys, Hockey jerseys here.
Reply to comment


Meston on June-12-17 4:53 PM
Yes! Finally something about cheap jerseys. cheap nfl jerseys
Reply to comment


Esteban on June-21-17 4:33 PM
Great place to order cheap d'backs jerseys by Paypal. wholesale Tim Masthay jerseys
Reply to comment


Skene on July-01-17 5:47 PM
Who do you want to gift for real madrid jersey 2015 cheap? Get value into the page: cheap Carson Wentz jerseys
Reply to comment


throwback giants jersey.Bruins 4 Bobby Orr Stitched CCM Throwback Black NHL Jersey site is the best on September-07-17 11:07 PM
throwback giants jersey.Bruins 4 Bobby Orr Stitched CCM Throwback Black NHL Jersey site is the best site to buy hockey canada jerseys! A complete selection of American football jerseys, Cheap Authentic hockey Jersey and baseball.
Reply to comment


cheap redskins gear.Welcome to cheap redskins gear shop - one of the best suppliers on the Internet on October-13-17 4:20 AM
cheap redskins gear.Welcome to cheap redskins gear shop - one of the best suppliers on the Internet. We specialise in the manufacture and supply of top quality cheap canada hockey jerseys 2015.
Reply to comment


Here is our sports jerseys china authentic & cheack more details on October-17-17 1:28 PM
Here is our sports jerseys china authentic & cheack more details
Reply to comment


Academic Writing Help on October-27-17 12:40 AM
You remind people who don't know about failure of double pane windows so now they'll care to buy them in future. And interior designer who studied in this field they know really well about advantages and disadvantages of double pane windows.
Reply to comment


Who do you want to gift for cheap stitched jerseys? Get value into the page: cheap china jerseys on November-03-17 12:23 AM
Who do you want to gift for cheap stitched jerseys? Get value into the page: cheap china jerseys
Reply to comment


Here is our nfl merchandise & cheack more details on November-30-17 8:07 AM
Here is our nfl merchandise & cheack more details
Reply to comment


After checking out a handful of the articles on your website, I truly like your way of writing a blo on December-24-17 4:28 PM
After checking out a handful of the articles on your website, I truly like your way of writing a blog. I bookmarked it to my bookmark site list and will be checking back in the near future. Take a look at my website too and let me know your opinion.cheap jerseys
Reply to comment


If some one desires expert view concerning blogging and site-building after that i advise him/her to on January-04-18 1:33 AM
If some one desires expert view concerning blogging and site-building after that i advise him/her to visit this web site, Keep up the nice work.cheap NHL jerseys; Lorrie,
Reply to comment


Ebay same style cheap Ryan Kerrigan jerseys to offer. Online free shipping - Cheap Carolina Panther on January-11-18 12:18 AM
Ebay same style cheap Ryan Kerrigan jerseys to offer. Online free shipping - Cheap Carolina Panthers Jerseys
Reply to comment


It's impressive that you are getting ideas from this post as well as from our discussion made at thi on January-13-18 1:34 AM
It's impressive that you are getting ideas from this post as well as from our discussion made at this place.2
Reply to comment


I know this site provides quality depending content and extra data, is there any other website whic on January-15-18 12:18 AM
I know this site provides quality depending content and extra data, is there any other website which presents such things in quality?cheap NFL jerseys
Reply to comment


It's going to be end of mine day, however before end I am reading this great piece of writing to inc on January-24-18 8:32 AM
It's going to be end of mine day, however before end I am reading this great piece of writing to increase my experience.cheap NFL jerseys, Sheldon,
Reply to comment


Oh my goodness! Impressive article dude! Thank you, However I am going through problems with your RS on February-10-18 4:25 PM
Oh my goodness! Impressive article dude! Thank you, However I am going through problems with your RSS. I don't understand why I can't subscribe to it. Is there anybody getting identical RSS problems? Anyone who knows the answer can you kindly respond? Thanx!!cheap NHL jerseys
Reply to comment


Aguilera on February-25-18 4:38 AM
Who do you want to gift for Cheap Chicago Blackhawks Jerseys? Get value into the page: https://goo.gl/j7ZQXr
Reply to comment

Add a Comment

Your Name:
Email Address: (Required)
Website:
Comment:
Make your text bigger, bold, italic and more with HTML tags. We'll show you how.
Post Comment
Website Builder provided by  Vistaprint