What's New

Johns Manville International Inc., Fire Protection Systems Division: LARGE DUCT FIRE PROTECTION

May 10, 2001
/ Print / Reprints /
/ Text Size+
Testing has been completed, and UL and OPL listings have been received for the largest duct through-penetrations in the fire protection industry, says the company. Super Firetemp® Board is now listed for ducts up to 48 by 48 in. and Firetemp Wrap is listed for ducts up to 24 by 54 in. These firestop penetrations, through floors and walls, have been tested and listed for both F and T ratings of up to 2 hrs, the company says. The listings include the approved use of Firetemp CI intumescent caulk and Firetemp SI intumescent spray, in thicknesses of 1/4 to 1/2 in.

Johns Manville International Inc., Fire Protection Systems Division, P.O. Box 5108, Denver, CO 80217; 303-978-2000; 303-978-2308 (fax); www.jm.com (website).

eProduct #190

Publication date: 05/14/2001


Did you enjoy this article? Click here to subscribe to The NEWS Magazine

Recent Articles by Greg Mazurkiewicz

You must login or register in order to post a comment.



Image Galleries

2014 Energy Efficiency Forum

Highlights from the 25th annual Energy Efficiency Forum in Washington, D.C.


NEWSMakers: John Missell

John Missell, vice president and COO of Spectrum Design, joins the program to discuss how his company has utilized geothermal technologies, and we examine the future of renewable energy resources. Posted on Aug. 15.

More Podcasts


NEWS 08-18-14 cover

2014 August 18

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

Prohibiting HFCs

EPA is proposing a rule that would prohibit some HFCs in select refrigeration applications. Do you agree with this move?
View Results Poll Archive


2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research


Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.


Magazine image
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.


facebook icontwitter iconyoutube iconLinkedIn i con