Tuesday, January 2, 2018

Glazing Surface Temperature

Glazing Surface Temperature

DISCLAIMER: This is for informational purposes only, I only own an IR Camera and I am NOT a certified thermographer. I know enough to be dangerous, and that is about it!

Here is my attempt at figuring out the glazing surface temperature at Rochester Passive House. I did 2 different scenario's.
                 1) Full Solar Gain - South facing window
                 2) No Solar Gain - Breezeway (north) door glass

Here were my test parameters:
                                         Full Solar Gain:                                 No Solar Gain:
                                 

The difficulty with finding an actual glazing surface temperature is glass tends to reflect quite a bit, so you are not reading the glass temperature, but the temperature of what is reflecting on the glass.

You can see my reflection in this IR Photo. 

To get closer to an actual glass surface temperature I took a scrap piece of paper, and covered half with black electrical tape, and covered the other half with 2 layers of painters tape. I taped this square to near the center of glass and let it sit there for a while. I am going to assume the paper will become the same temperature as the glass.

This is the paper I taped to the glass. I needed to make sure the paper was completely opaque. I used black electric tape for half, and 2 layers of painters tape for the other half. According to FLIR electrical tape has an emissivity of about 0.95. The painters tape is not as shiny (lower emissivity) but I wasn't sure if how the black tape would show a hotter temperature with the solar gain. 

Here is the Solar Gain Photo:
You can see, the black tape is hotter than the painters tape. But both of them are in the 103-106F range. The hottest temperature is not centered in on the black tape because of the angle the sun is hitting the exterior glass.
I have 2 images for the shaded glass
This one was taken roughly 1.5 ft away at a slight angle. It is roughly 65F
This one was taken about 6" away, but you can see how varied it is, there is quite a bit of reflection going on - but the average temperature is about 62 F

Because I was going in and out of the breezeway multiple times, the breezeway door and interior walls may be a few degrees cooler than normal. I took an IR photo of the interior wall, next to the breezeway door and it was 65F. I didn't post it because it is just an orange square - nothing really to see. 

Summary:
IN WINTER EXTERIOR CONDITIONS
Glazing Surface Temperature of South Windows in full sun = 100-105F
Glazing Surface Temperature of Windows in full shade = 60-65F - within 7F of indoor air temperature.

 Someday I am going to do this with an Energy Star Window and compare. 

28 comments:

  1. Thanks for share us such a good and informative article you can get the every kind of blinds from the window blinds store and decorate your room well and amazing.

    ReplyDelete
  2. Thanks for sharing this Blue A Ltd providing all kind of removal solution in London.

    ReplyDelete
  3. You gathered all the essential information and summed up here! Thanks for sharing this article. If you are interested, do check Home interior design singapore page for such inspirations.

    ReplyDelete
  4. Great Blog Thanks for sharing
    Arrow Estates LLC provides real estate solutions to homeowners that want to sell home fast
    Process of Selling a House For Cash

    ReplyDelete
  5. Good blog. Having great knowledgeful content. What about for cheap flights Must checkout the website for-cheapflights.com
    cheap flights to florida
    cheap flights to new york
    cheap tickets
    flight tickets
    flights to vegas
    flights to miami Compare all flight fare under one roof.

    ReplyDelete
  6. Nice information. Thanks for sharing content and such nice information for me. I hope you will share some more content about. Please keep sharing!
    https://www.lcrenovation.co.uk/
    House Renovations in Herne Hill

    ReplyDelete
  7. Very nice blog, great information. Best construction and renovation service company, 3ebuilder.com offers A&A works and terrace house reconstruction, rebuilding, addition and alteration service in Singapore. Call now at +65 6372-8802.
    Landed Property Construction Singapore

    ReplyDelete
  8. denver property management


    A personalized approach using an updated system, verified properties and incredibly efficient in cost is what you get with best Denver property management services. Denver property management provides solutions for homeowners and real estate investors.


    to get more - https://www.integrityrm.net/denver-property-management/

    ReplyDelete
  9. Cảm ơn bài viết của bạn, thật tuyệt vời, mời các bạn tham khảo các kiến thức nha khoa >> Răng khôn mọc thẳng lung lay ? bạn nên làm gì ?

    ReplyDelete
  10. Choose the best tile and grout cleaner to make your floor clean and hygienic. We offer countertop, stone, shower, glass and pool tile cleaning products. My work: Grout and Glass restoration products

    ReplyDelete
  11. Really glad to read this post. Professional reinstatement service firm offers industrial building reinstatement service in Singapore. Call Today for industrial building reinstatement.
    direct reinstatement Singapore

    ReplyDelete
  12. Thanks for sharing this wonderful information. For more like this visit Garage Conversion Specialists Surrey

    ReplyDelete
  13. Such a great informative blog If you looking for best drainage company then visit Drainage Exeter

    ReplyDelete
  14. Really glad to see this post. IF you are looking for Civil Engineering Companies in Hampshire. Civil Engineering Companies Hampshire deal with the work related to groundworks and civil engineering. They provide all the necessary solutions in regards to ground and civil work-related problems at both private and commercial scales.

    ReplyDelete
  15. Nice blog, very nice information you shared. Best Conservatory Builders and Installers offer high quality conservatories installation services, we offer cheap sunroom conservatory and small glass conservatory in Essex. Contact us today!
    conservatory installation near me

    ReplyDelete
  16. Thanks for your information.it was very useful. Get more information from Energy Rating.

    ReplyDelete
  17. Thanks for sharing this great post. It is very enlightening. I absolutely love to read informative stuff. Looking forward to find out more and acquire further knowledge from here! Cheers!
    House Renovations in Herne Hill

    ReplyDelete
  18. Thanks for sharing this valuable information with us. If anyone is looking to buy house then contact Elvis Buys Houses

    ReplyDelete
  19. nice post i will read it again that is more helpfull for me thanks for coprating
    Heat and cool

    ReplyDelete
  20. It's not often I have the opportunity to enjoy great content like yours. Thank you for writing compelling and interesting material for readers like me. You have a great talent. Zero Point One Building construction is your premier choice for all your construction and renovation needs. Specializing in house extensions, loft conversions, garage conversions, house renovations, bathroom renovations, and kitchen renovations, we are committed to transforming your home into the space of your dreams.

    ReplyDelete
  21. Thanks for sharing this great post. Let Homednb keep you hassle-free from the start to end of your project, as it is a platform that can pair you with vetted and experienced home remodeling contractors in Los Angeles.

    ReplyDelete
  22. Good information.






    ------------------------------------------
    I work in frp translucent corrugated panels

    ReplyDelete