Good luck I would say. Hope the property insurer understands this is
polyurethane spray-on. In my experience they go orange-bronze in colour in
5-10 years and start "drying out" it will turn to powder when you touch. It
is common particularly around wine industry buildings, as wall and ceiling
insulation. Another (and incorrect) use is to fill in cable and service
penetration in walls.
I remember a senior FM engineer told me that if you get your wall-ceiling
angle and ventilation rate right, the fire spread is so fast it will
overcome your sprinkler heads popping!
Jack C Kilavuz
Managing Consultant
Royal & Sun Alliance Insurance - Singapore
77 Robinson Rd #17-00, Singapore 068896
DID: (+65) 6423 0552
Fax: (+65) 6423 0798
Mobile (+65) 9277 5741
Please consider the environment before printing this e-mail!
"Greg McGahan"
<[EMAIL PROTECTED]
p.com> To
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sprinklerforum-bo cc
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er.org Subject
RE: icynene
18/10/2007 01:46
AM
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We are seeing this a lot in our area. They are spraying the roof decks.
Living Water Fire Protection, LLC
1160 McKenzie Road
Cantonment, FL 32533
850-937-1850
Fax: 850-937-1852
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of å... ....
Sent: Wednesday, October 17, 2007 12:42 PM
To: sprinklerforum@firesprinkler.org
Subject: icynene
Some plastics, especially open cell,
burn differently in full scale and in semi-vertical
orientations than they do in the E84 test.
The E84 is the classic place to start the
hazard assessment, though.
If Icynene is used in an attic, with the tight
configurations one associates with these
spaces, I would think the radiative feedback
from the sloped roofs would provide much more
than the 400° F temperatures needed for the
Icynene to CONTRIBUTE to the fuel in an
attic fire.
While 400°F ignition temp. might sound bueno, remember that
some thermally thick (> 1/4 inch) wood has non-piloted
ignition temperatures above 800°F. I can´t tell if the
400°F is a piloted or non-piloted ignition temperature.
All I am saying is, the Icynene MAY not contribute to
ignition, but it WILL burn. Having said that, it doesn´t melt,
so as a thermoset plastic--charring is better than
dripping.
Does this change the hazard category from LH to OH...
I can´t say, depends on how much and where the foam is placed.
Horizontal locations are less hazardous than on the
sloped parts of the roofs. Obstructions to sprinkler
discharge also figure in. bottom line. more fuel in the attic
if the sprinklers can not put the kabosh on the fire reasonably early.
scot deal
excelsior fire engineering
On 10/17/07, Greg McGahan <[EMAIL PROTECTED]> wrote:
>
> We have an AHJ looking for answers on icynene insulation. He says it
> will burn according to the MSDS at 400 F and wants to know in a if the
> sprinklers would be able perform as well in an attic with Icynene as
> they would without it.
>
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