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Old 12-06-2012, 07:42 AM   #16
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How to cut and seal insulation


Use a foam compatible sealant. PL might melt the foam.

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Old 12-06-2012, 10:03 AM   #17
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How to cut and seal insulation


Actually pl300 is made specifically for adhering to xps just need to know if it will give me the proper seal at the seams and the concrete floor as well.
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Old 12-06-2012, 12:32 PM   #18
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How to cut and seal insulation


Just make sure the concrete is clean and it should work.
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Old 12-07-2012, 10:23 PM   #19
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How to cut and seal insulation


Screws and Nails! If the glue doesn't work.
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Old 12-10-2012, 01:23 PM   #20
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How to cut and seal insulation


Hey don't rule the table saw idea out just yet, if you havent already completed this project. Depending on whether you have enough outfeed and side feed support around your saw, and its rip capacity, we use 2"xps all the time at work and unless it's a random small peice or doesnt break on one of the joints we used the table saw for any repetitive cuts. Nice clean edge for tight fit. It does make a pink mess.Im just speaking from personal experience, not sure if its right or wrong but it does yield good results. Good luck with your project
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Old 12-10-2012, 02:46 PM   #21
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How to cut and seal insulation


Check with your local AHJ as the f.b. may require positive fastening per Code.The adhesive pattern is important, no air to concrete; http://joneakes.com/jons-fixit-database/743

Use the waste on the rims; http://www.buildingscience.com/docum...l_seal_rev.pdf

Use canned foam under them and between joints or mastic/tape because it may shrink later; http://www.buildingscience.com/docum...a-foam-shrinks

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Old 12-10-2012, 06:54 PM   #22
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How to cut and seal insulation


Ok so everywhere I look people are suggesting this Great Stuff...stuff. However I cannot find any information if it's compatible with xps rigid foam foam or not. And is this Great Stuff truly safe as far as vapors and coming in contact with moisture/condensation goes? If there a caulk or sealant alternative out there? Please help and thank you.

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