Post Frame Metal Roofing

Rich Maki
3/13/2012
I like to come to this site for the information. Definitely an excellent source. My question is I design and sell post frame construction mainly using some type of steel product on the roof. We currently use a fanfold product for insulaton on top of roof purlins to help with the moisture and drips from the steel above. I have seen and heard of people using some type of Typar or Tyvek instead of the fanfold insulation. Have you seen or heard of this practice before. I have been searching for more information on this topic but alas no luck yet.
Todd Miller
Isaiah Industries, Inc.
3/13/2012
Thanks Rich. We will see what input we have.
Eric Novotny
An informed customer is the Best Customer!
3/14/2012
Rick, Where do you sell most of this stuff? Tyvek will help with the bulk air transfer and keeping the air from touching the roof, however, it is very vapor open and will still allow for considerable diffusion through. This could be a good thing or a bad thing depending on where you are. Might want to look at Tyvek Membrane as well. http://construction.tyvek.co.uk/Tyvek_Construction/en_GB/products/roofing/index.html
Rich Maki
3/14/2012
My store is located near Rochester, MN. Metal Sales is the main manufacture that we use. I am interested in this different way of trying to prevent moisture dripping inside the building. I will definitly check out that link. Initial costs of Tyvek or some typar verision is less than half using fanfold and half the labor because of speed of application. I just want to research before attempting it to save my customer and myself some greif. Thanks again, Rich
Todd Miller
Isaiah Industries, Inc.
3/14/2012
There are fibrousy "anti-con" materials which can be adhered to the back of metal roofing panels and they hold condensation and allow it to dry rather than drip. I can't find a link right now to the actual product but here is a link to a company that offers this material pre-applied to their roofing: http://www.roofingmaterialsmidlands.com/acatalog/anti-condensation-roofing-sheets.html
Rich Maki
3/14/2012
Yes Todd you are correct. That type of product originated from over seas. I looked into that extensively and I feel it is a very good system. The only reason I haven't ever used it was the cost was greater than us putting fanfold on with labor by quite a margin. As I am researching this typar , Tyvek application, if I feel it is inferior to what we are doing, than I wont use it. If it holds up just fine than yes its a great idea to help me be more competative and offer a better deal. Thank you all for your responses, I will keep researching this. My whole point to investigating this type of application with the wall paper is two things. If it is proven and effective, great I can offer a more affordable option. If it is just a fad that people are trying to be cheaper, than I can at least explain it to my customers about the pros and cons of it. Thanks again very much, Rich
Todd Miller
Isaiah Industries, Inc.
3/14/2012
Rich, thanks so much. I am impressed by the seriousness with which you approach what we do. Do you ever go to MetalCon? If so, please be sure to introduce yourself to me. I do have a good friend who imports the anti-con material from northern Europe. If you'd ever like to connect with him, drop me an email at [email protected]
Dick Bus
3/14/2012
The material comes from the Netherlands.I believe that McElroy Metals is using Condi-stop. Give them a call.

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