Wood Trust Warning Signs

For the purpose of this section, the following terms, phrases, words and their deviations shall have the meanings given herein:

  • Property Owner. Any person, firm, or corporation having a legal ownership interest in the property. 
  • Sign. A nine-inches (minimum) by three-inch (minimum) piece of aluminum or stainless steel stock plate, 1/8-inch thick (minimum), covered with red 3M-diamond grade reflective film or equivalent. Located at the center of the sign is a white 3M-diamond grade or equivalent reflective letter “T” which is three inches (minimum) in height. 
  • Wooden Truss Roof. A wooden roof structure consisting of a group of triangles arranged in a single plane in such a manner that loads applied at the points of the intersections of the structural members will cause only direct stresses, tension or compression, within the structural members. WOOD TRUSS ROOFS may include, but are not limited to, the following general types of construction: bowstring, warren, sawtooth, k truss, scissors, cambered fink, hammerbeam, pratt, fink, and inverted queen post.


The owner of any commercial or industrial structure which has a wooden truss roof assembly shall be required to mount warning signs meeting the following minimum requirements:

  • Size and constructionEach sign required to be installed in accordance with this chapter shall be of the size and construction defined within Section 95.03. 
  • Mounting locations and height from finished gradeA sign shall be mounted directly to the right of each series of entranced doors (front, rear, and sides of the building or structure) at a height of five feet up from finished grade. The Fire Chief may require additional signs, when the distance between entrance doors or the length of a series of entrance doors would require additional warning signs for visibility by Fire Department personnel. 


It shall be the responsibility of each property owner to mount, maintain, and prevent obstruction of any warning signs required to be mounted on the building or structure.

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Thursday, April 26, 2018. Village of Matteson, Matteson, Illinois. All Rights Reserved. All information provided is deemed reliable but is not guaranteed and should be independently verified. This website is best viewed in 1024x768.