Most AHJ’s here in the Seattle area say no to any paint applied fire retardants and reference that particular part of the code. They insist it must be factory applied by the manufacturer or they won’t accept it. I know it’s been tried with wood framed Porte Cocheres and that brings up a whole new problem of exposure to the elements over time.
I typically wont agree to it when doing design build of course knowing that the AHJ most likely will shoot it down anyways. Good luck. Anthony Carrizosa Project Manager | Fire Protection 7855 S 206th St Kent, WA 98032 Cell: 206-679-5283 | Office Dir: 253-341-4593 [cid:[email protected]] https://archerconstruction.com<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2farcherconstruction.com%2f&c=E,1,Wdb65AWzMgSBzW3HDw91SfcRQCtxDUQKoJf-UowQ-WnB_WMosgG-8W7eLePJ42PwWQvLiQx16Pls052VqwHO7tKm-_u5AnWly0ewkNiMkxn-AjQb1JI,&typo=1> From: Fpdcdesign <[email protected]> Sent: Thursday, September 1, 2022 7:27 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: Intumescent Paint And the local AHJ says he’ll approve it if I approve it. And I do not want to get involved. Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080<tel:860-535-2080> (ofc) 860-554-7054<tel:860-554-7054> (fax) 860-608-4559<tel:860-608-4559> (cell) On Sep 1, 2022 at 10:23 AM, <Bob Caputo<mailto:[email protected]>> wrote: This is true for impregnated fire treatment however this also weakens the structural member. There are intumescent paint on the market that can be applied but must be approved first by the local AHJ. The problem with these applications can be a lack of uniformity in the thickness applied (as with any coating) but section 1.5 allows alternatives were approved by the local AHJ On Thu, Sep 1, 2022 at 9:08 AM Anthony Carrizosa <[email protected]<mailto:[email protected]>> wrote: According to NFPA 703 NFPA 703 Fire Retardant – Treated Wood. [cid:[email protected]] This cannot be a paint applied after construction, but must be during the wood manufacturing process. Anthony Carrizosa Project Manager | Fire Protection 7855 S 206<https://www.google.com/maps/search/7855+S+206?entry=gmail&source=g>th St Kent, WA 98032 Cell: 206-679-5283 | Office Dir: 253-341-4593 [cid:[email protected]] https://archerconstruction.com<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2farcherconstruction.com%2f&c=E,1,Wdb65AWzMgSBzW3HDw91SfcRQCtxDUQKoJf-UowQ-WnB_WMosgG-8W7eLePJ42PwWQvLiQx16Pls052VqwHO7tKm-_u5AnWly0ewkNiMkxn-AjQb1JI,&typo=1> From: Fpdcdesign <[email protected]<mailto:[email protected]>> Sent: Thursday, September 1, 2022 6:58 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]<mailto:[email protected]>> Subject: [Sprinklerforum] Intumescent Paint Has anyone dealt with a situation where an intumescent paint has been used on a wood structure to make a space above a ceiling non combustible? I’ve never been a fan of this stuff but I have a building owner that is adamant about using it. Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080<tel:860-535-2080> (ofc) 860-554-7054<tel:860-554-7054> (fax) 860-608-4559<tel:860-608-4559> (cell) _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2flists.firesprinkler.org%2flist%2fsprinklerforum.lists.firesprinkler.org&c=E,1,v235dcb4GY-iU8nA2qP5U1eNFmcZRb6Af129BbGr1JqOa6_Ci6P7qphDfUVjRra0kS6Dk4hpA3Of1zjY6xc3pOrxdzrXk0zSAubwFYAs&typo=1> To unsubscribe send an email to [email protected]<mailto:[email protected]> -- [https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.dropbox.com%2fs%2fg4h8r7hdtsr6154%2fAFSA_L.png%3fraw%3d1&c=E,1,5hEdAnjVogoo6Qn0exhWmYJuHtlEBWyHiApOZvmxZy7lHg3JQ4Ukx9M256Et6_sskU86s1oJucB3EOLKG8ogwBy6k76hhrBNo_EGptrp8FkblVKIDQ,,&typo=1] Bob Caputo, CFPS President American Fire Sprinkler Association p: 214-349-5965 ext124 w: firesprinkler.org<https://linkprotect.cudasvc.com/url?a=http%3a%2f%2ffiresprinkler.org%2f&c=E,1,Tfx7O9YwohRD3rzQzlNn5f-56CTnoZiznsiQuWvJP10dLcFNLixiSWqpPQoYy--toihGp_jK5xZlwIe166dAaqzdyQHBP0bkBdRytua2pIpZ&typo=1> [http://cdn2.hubspot.net/hubfs/184235/dev_images/signature_app/facebook_sig.png]<https://www.facebook.com/firesprinkler.org/> [http://cdn2.hubspot.net/hubfs/184235/dev_images/signature_app/twitter_sig.png] <https://twitter.com/afsa/status/1039528345367732224> [http://cdn2.hubspot.net/hubfs/184235/dev_images/signature_app/linkedin_sig.png] <https://www.linkedin.com/company/american-fire-sprinkler-association-afsa-/> [http://cdn2.hubspot.net/hubfs/184235/dev_images/signature_app/instagram_sig.png] <https://www.instagram.com/firesprinklerorg/> Train a safer, more efficient workforce. 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