Gleeson Powers, Inc.

Gleeson Powers, a UL Qualified Firestop Contractor and a Factory Mutual 4991 Approved Firestop Contractor, is one of the leading single-source contractors specializing in the installation of firestop systems and smokeseal products. We provide professional expertise on new or retrofit projects. We specialize in areas such as Medical Facilities (Hospitals and Nursing Homes) as well as Commercial, Industrial and High Rise Residential Buildings.
Site Conditions
We use the most up-to-date UL, FM, WH, OPL and other list firestop systems. We verify the actual site condition. We match the correct firestop system to the actual site conditions, including blank openings, cable trays, bus ducts, insulated and no insulated metallic pipes (Steel, Copper, Iron, EMT, Stainless Steel) and non-metallic pipes (PVC, ccPVC, PVDF, CPVC, FRPP, PP, PB, ABS, ccABS, X-Linked PE), glass pipes, telephone conduit, security cables and combinations of any and all of the above.
We insist the correct installation of the appropriate firestop system is as important as the materials themselves.

Documentation
As one of the region's largest specialty contractors, we provide complete firestop documentation (detailed drawings) on each application type for approval by the owner, architect or insurance company. We also offer tamper-proof DO NOT DISTURB labels for areas such as large openings, or cable tray penetrations where future activity is probable. We offer complete customer satisfaction and professionalism because Life Safety is our business.

Full Line of Firestop Products
Gleeson Powers carries a comprehensive range of firestop products suitable for most firestop systems and applications. We utilize products manufactured by the leaders in the firestop industry: 3M, Grace-Flamesafe, STI-Specseal, Rectorseal - Bio Fireshield, Nelson, Tremco and Hilti. While we are trained and certified by each firestop manufacturer we maintain our independence of each. This enables us to use the most appropriate tested firestop system available for a particular application.


Firestopping Made Easy
There is an ever-changing list of approved firestop systems and products available. Avoid misunderstanding and confusion. Lest us examine your project's specs to determine your firestopping needs. With our expert knowledge, we can isolate the most cost effective solutions. We will provide detailed drawings on each application type for approval by the owner, architect or insurance company.

Project Management
Gleeson Powers, offer single-source responsibility and accountability for all firestopping and smokesealing requirements. We can interface with Fire Marshals and Building Inspectors, if required. We install UL and/or equivalent firestop systems maintaining the integrity of fire rated assemblies in buildings and to protect lives. GPI is an active member of the following: the IFC, a charter member of the FCIA, and a contractor approved to the FM 4991 Standard.

Code Interpretation
Code interpretation can be complex, with over 3.500 different UL firestop systems alone. Choosing the correct firestop system depends on the type of item penetrating a fire rated wall or floor assembly. Remember, there is no firestop material that can be used in every application or situation for any penetration type.

Who's Responsible
Life Safety is ultimately the responsibility of the owner. If there is a general contractor involved in the new or retrofit work or upgrading of facilities it's his responsibility.
GLEESON POWERS is a Specialty Contractor WHO UNDERSTANDS FIRESTOPPING and is FM 4991 APPROVED.

Testing Procedures
The performance of firestop systems and joint systems is determined by fire testing. Through-penetrations and membrane penetrations are tested to the following criteria: ASTM E 119, UL 263, NFPA 251, ASTM E 814, and UL 1479. Joint systems are tested to: ASTM E 119, ASTM E 1966, ASTM E 1399 (for cycling), ASTM C 719 (adhesion and cohesion), and UL 2079. NFPA 96 (Grease Ducts).

Testing Laboratories
	Underwriters Laboratories 333 Pfingsten Road Northbrook, IL 60062-2096 847-272-8800	Omega Point Laboratories 16015 Shady Falls Road Elmendorf, TX 78112 800-966-5253
	Southwest Research Institute 6220 Culebra Road San Antonio, TX 78228-0510 210-684-5111	Intertek Testing Laboratories (Warnock Hersey) 24 Gordon Avenue Cortland, NY 10345 607-758-6234
	Factory Mutual Insurance Company (FM Global) 1301 Atwood Avenue Johnston, RI 02919 401-275-3000
Where there is no UL and/or equivalent approved firestop system available for a particular application we will arrange for an engineering determination from the firestopping manufacturer for your and the Architect's consideration.

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