Comments on: Fire Resistant Foam Insulation

By: admin

admin — Fri, 13 Apr 2012 22:06:16 +0000

Hi Derik,
I’m not sure what would be the best solution for your project. Fire rated doors are usually custom built and independently tested for regional code compliance. I recommend that you check locally for your requirements.

By: Derik Snyman

Derik Snyman — Tue, 10 Apr 2012 05:55:01 +0000

I need a fire resistant foam to inject in a fire sliding door’s core. 2 x 2,5 meter construction 150 x 50 x 20 x2 lipped channel and clad with 1.2mm galvanized steel plate. Please advise and is it available in Pretoria, South Africa.

By: admin

admin — Wed, 28 Dec 2011 15:35:44 +0000

The vent should be double-walled to reduce heat transfer. You could insulate or seal the penetration gap with fiberglass and/or heat resistant expanding foam, such as Touch ‘n Foam Firebreak Sealant

By: John

John — Tue, 27 Dec 2011 22:19:06 +0000

Hi,

I am looking to fill a hole I made to vent a 400,000 btu tankless water heater. I used category 3 stainless for venting as per code. Now I need some form of expansion foam to fill the cracks, that is capable of withstanding the high heat the duct will give off. Suggestions?

By: admin

admin — Wed, 07 Dec 2011 22:17:00 +0000

Hi Colin,
Your question would be best answered by your local building department and a consulting engineer.
The Spray Foam Frothpak mentioned has Class 1 fire rating, but 1-2 hours will depend on the total construction assembly of ceiling, floor and floor covering.
There is not a coating that creates an hour rating. It depends on the complete assembly.
Check with the the building department first as he may have an easy solution that satisfies codes, or refer you to an engineer with the appropriate expertise.

By: Colin Williston

Colin Williston — Wed, 07 Dec 2011 18:37:35 +0000

I have some older commercial buildings, that are 2-3 storeys, and I am interested in renovating the second/third floor to make appartments. Currently there is no fire separation requirement between floor, as they are all office/retail, however in order to build appts on upper floors, I will need somewhere between 1-2 hrs fire separation. Can you recommend a product that I could spray above a t-bar ceiling of a finnished space, to help get the fire separation I need. Dismantling existing ceilings in finnished, occupied space to install type X drywall is not a probable option. Your input would be appreciated. Thanks. Colin

By: admin

admin — Mon, 05 Dec 2011 20:04:58 +0000

Hi Julie,

Thank you for your inquiry. You may be able to fill the gap with expanding foam if the temperature gradient is not too high.

A possible product for you could be:

Touch ‘n Foam Firebreak Sealant

This product is bright orange but can be covered with caulk or paint.

A lower temperature expanding foam insulation with fire retardant is:

Kwik Foam Polyurethane Sealant

Check your local building code to ensure compliance.

By: Julie

Julie — Mon, 05 Dec 2011 15:41:11 +0000

Hi, it appears my fireplace has shifted and there is now a big gap between it and my house letting cold air in the my den. I’m looking for a fire resistant expanding foam to fill it without being too visibly noticable or unappealing. Any suggestions?

Thanks,
Julie

By: admin

admin — Tue, 26 Jul 2011 15:55:38 +0000

Hi Karen, I not quite sure what you have in mind, but a fire resistant foam might meet your needs. Here is one possibility: Dap 44242 Fireblock Foam Sealant but don't use it if you need to meet any applicable local fire codes. It is bright orange coloured. Another choice could be to use a high temperature adhesive such as: CarGo 8024 ThermoSteel High-Temp Metal Repair or something like this: Nomex High Heat Gasket with Adhesive

By: Karen

Karen — Tue, 26 Jul 2011 15:03:13 +0000

Would fire resistant foam be suitable to seal and fix a cast iron fire surround to the wall. It wouldn’t be in direct contact with the fire but close by. If so could you recommend a reliable brand.
Regards
Karen