Fireproofing Interlockings

NW Mailing List nw-mailing-list at
Wed Jan 25 11:21:55 EST 2017

Thanks for asking this question, Glenn (and Larry for the response), along with the fireproofing backstory . 

I'd been wondering the reverse; when and why asbestos shingles were applied to Circleville's tower (other than being the fashion of the day). The 1942 fireproofing document in the archives didn't note *what* was done, so I could only presume the two were related.   

Matt Goodman
Columbus, Ohio

Sent from my mobile

On Jan 22, 2017, at 10:12 AM, NW Mailing List <nw-mailing-list at> wrote:

  One thing that stands out wash the application of asbestos shingles over the siding  
Larry Evans
From: NW-Mailing-List [mailto:nw-mailing-list-bounces at] On Behalf Of NW Mailing List
Sent: Saturday, January 21, 2017 1:22 PM
To: nw-mailing-list at
Subject: Fireproofing Interlockings
In 1942 the N&W began the process of fireproofing its wooden interlockings (towers and other structures containing an interlocking machine) in the possibility of an enemy attack.  Just what was involved in this “fireproofing?”  Was there are fire-resistant paint to be applied?  What else?  I could not find a reference to the actual process involved.  Thanks!
Glenn Fisher
Cornwall PA 
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