Polygal – An Architect’s Review of a cost-effective glass alternative

In this video I review everything you need to know about multiwalled structured sheet plastic. I review the cost, manufacturers (Polygal, Verolite, Thermoclear, Palram, Sunlite), light transmission, thermal properties, installation details, size, color, shapes and possible uses.

As with all of my videos I review the material from the standpoint of an architect evaluating its use in home design and construction.

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  1. Robert Swinburne
    March 13, 2015

    Excellent – I love double/triple wall polycarbonate.  Greenhouse supply catalogs are potential sources that may be less expensive than architectural supply retailers.

  2. vita diaz
    May 13, 2016

    Can twin wall polycarbonate roofing sheets cut in a curved line and sealed effectively?

  3. Deb Lehman
    May 14, 2016

    I love your video on polycarbonate. I have a contractor and I am ready to order the product. The questions I have are with the installation.

    Here are my questions:
    1. Solid tape on edge next to ledger board and vented tape on gutter edge. Both seem important to me. Can vented tape be used on both sides?

    2. Should a rafter gasket be placed on top of rafter? Is an aluminum base as effective?

    3. Is it best to use a capping profile with gaskets to avoid water seeping down to the rafter? Or is an aluminum cap when screed down equally as effective ?

    4. Should an F profile be added to the gable end and secured to the outside of the rafter?

    5. Should a cap be used over the u-profile at gutter edge and over the capping profile to avoid water seeping into/under the sheets?

    6. Is there a distributor you would recommend I contact?

  4. Greg Thorne
    September 10, 2016

    I would love to use this I'm my fence. I live on a corner, and would love to see the silhouettes of people when they walk by. I guess I need the UV resistant variety? Do the panels that they build greenhouses out of yellow too? I guess I haven't noticed.

  5. Luciano Lizana
    November 12, 2016

    Thanks for your Video! how much thermal isolation can Provide an opal 8mm thick Polycarbonate Sheet with UV Protection?

  6. Christian Fekete
    December 20, 2016

    very nice, I love this material

  7. Noe Berengena
    February 6, 2017

    Very attractive material and great flexibility. One consideration: does this material create noxious fumes in case of a fire?

  8. vaccines evil autism
    February 28, 2017

    I want to use triple wall polycarbonate to build my porch enclosure. but so far i can't find any comany using this to do so.

  9. Aleksandar Simanic
    May 7, 2017

    I am quite sure that polycarbonates will dominate in the future and replace glass in many many buildings.

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