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(Unregistered Guest)
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| Posted on Tuesday, April 11, 2023 - 03:09 pm: |    |
Reaching out to the hive mind to find out if anyone knows of a clear, Class A fire protective product that can be applied to an exterior CLT soffit (not exposed to the elements)? Thanks! |
Phil Kabza Senior Member Username: phil_kabza
Post Number: 754 Registered: 12-2002
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| Posted on Tuesday, April 11, 2023 - 03:39 pm: |    |
Look at Flamestop.com, who offer several products indicated to provide a Class A flame spread and smoke developed rating to exterior lumber. Have others had success with this or other similar products? Phil Kabza FCSI CCS AIA SpecGuy Specifications Consultants www.SpecGuy.com phil@specguy.com |
Brian Payne Senior Member Username: brian_payne
Post Number: 305 Registered: 01-2014
| Posted on Tuesday, April 11, 2023 - 03:48 pm: |    |
Can't find specific flame spread info, but I recommend Sansin PC SDF Naturals Topcoat for Soffit locations. Product Data says it is flame resistant, but doesn't say specific class. |
Brian Payne Senior Member Username: brian_payne
Post Number: 306 Registered: 01-2014
| Posted on Tuesday, April 11, 2023 - 03:51 pm: |    |
Sansin Announces FireStop, “Class A” One-Coat Flame Spread Protection for Interior Wood Substrates https://www.sansin.com/sansin-announces-firestop-class-a-one-coat-flame-spread-protection-for-interior-wood-substrates/ |
(Unregistered Guest)
Unregistered guest
| Posted on Tuesday, April 11, 2023 - 04:59 pm: |    |
Thanks! Looks like Flamestop has an exterior product, but not seeing where the Sansin Firestop products can be used in exterior applications. |
ken hercenberg Senior Member Username: khercenberg
Post Number: 1561 Registered: 12-2006
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| Posted on Tuesday, April 11, 2023 - 07:41 pm: |    |
I would presume there would be something here - https://www.4specs.com/s/09/09-9640.html Maybe something like https://frctexas.com/exterior-fire-retardant-for-lumber-plywood/ |