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Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen WernerChimney Chase & Shroud Fire Report
Chimney fire traced to unsafe top shroud & counterfeit UL label

Chimney chase & top shroud fire case report:

this article provides photos and description of a Moorpark CA chimney fire whose origin was an unsafe chimney top shroud. Remarkably the shroud bore a counterfeit UL listing label.

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Chimney Fire Case Report: unsafe to shroud, counterfeit UL product label

Steve Werner, Chimney King LLC.

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

Watch out: according to both Steve Werner and to Dale Feb, some fireplace top shrouds or surrounds installed on some chimney chase tops may unsafe due to heat trapping at the chimney top. Such shrouds usually violate local and national building codes as well.

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

The house fire illustrated by these photographs (provided by Mr. Werner) occurred in Moorpark CA [date, fire district, details needed] and was attributed to an un-listed and unsafe chimney top decorative shroud atop a wood framed fireplace chase.

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

[Click to enlarge any image]

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

Common causes of factory-built fireplace and chimney and chimney chase fires are the combination of a metal or factory-built fireplace or fire-box and chimney combined with a decorative chimney top cap or shroud that was installed over the manufacturer's spark arrestor and cap assembly. In photos below you can see the remains of the un-listed chimney top, now on the ground after the building fire.

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

at CHIMNEY SHROUDS we noted reports of chimney & house fires traced to unsafe decorative shrouds installed atop wood chimney chases and factory-built metal chimneys.

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

Baird (1991) reported on a number of chimney & house fires occurring in California from 1989 through the early 1990's and explained that all of the fires investigated occurred in chimney chases that had been equipped with decorative sheet metal "shrouds".[4]

Below you will note the very extensive roof and ceiling fire damage to the home where this fireplace shroud was installed. At below right the worker is using red paint to mark an unsafe chimney top termination [details needed].

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

Baird also reported on the reasons that un-listed chimney top shrouds were the cause of serious building fires and recommended a variety of steps to reduce the risk of future fires including using only listed chimney top shrouds and the inspection of both existing and new factory-built fireplace and chimney installations.

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

Baird concluded that "Failure to fabricate a chase flashing according to the manufacturer's instructions constitutes a violation of the Uniform Mechanical Code" and concluded that "... future installations must not include unlisted attachments to a listed [fireplace or chimney] assembly."[4]

Building Code Citations for Decorative Chimney Top Shrouds

Fake or "counterfeit" UL listing label compared with a valid UL label for chimney top decorative shrouds

Moorpark CA chimney chase & shroud fire, fake UL label (C) InspectApedia Stephen Werner

Above: counterfeit UL listing label found on the unsafe chimney chase top shroud attributed to cause of the fire described here.

At the request of UL we have overlaid all of these listing labels with a red imprint to make clear that copying of these or any other illustrations at InspectApedia is a violation of federal copyright law as well as other rights and statutes enforced by the listing agency, in this case Underwriters Laboratories.

Below is an example of a valid chimney top shroud UL Listing Label from Chimney King

UL Listing on chimney top shroud (C) InspectApedia Chimney King

More examples of listed chimney top shrouds and proper valid UL listing labels for these products can be seen at CHIMNEY SHROUDS.

Contributing to this article:

Chimney fire & UL label photographs were provided by Stephen Werner General Manager Chimney King, LLC P.O. Box 8 Gurnee, IL 60031 Corporate (847) 244-8860 Fax (847) 244-8694 Email: steve@chimneyking.com

  • CHIMNEY KING INSTALLATION INSTRUCTIONS FOR CHIMNEY CROWN, [PDF]
  • Purdie, Roger K., "CHIMNEY FIRE SAFETY BULLETIN", Vista Fire Protection District, 2001, report of house fire related to the home's metal chimney. Contains advice for chimney * fire safety & sketches of approved and not-code-approved metal chimney tops, caps & crowns. [PDF]
  • Copper chimney rain cap - Chimney King, Wisconsin[2]Stephen Werner, General Manager, Chimney King LLC., P.O. Box 8, Gurnee, IL 60031, Tel: (847) 244-8860, Email: steve@chimneyking.com, Website: www.chimneyking.com . Mr. Werner is also a licensed home inspector serving clients in Wisconsin. Chimney King sells their products through a network of fireplace dealers, chimney sweeps, roofers and builders. Each decorative shroud is custom built because no two chimney chases are alike.

 

InspectAPedia.com  is an independent publisher of building, environmental, and forensic inspection, diagnosis, and repair information provided free to the public - we have no business nor financial connection with any manufacturer or service provider discussed at our website. 


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