Knauf Koolduct & Techna-Duc Insulation Systems Propel PTM Manufacturing Into the Futrue; and it's Green

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PTM Manufacturing has expanded its operation in the Northeast Region of the US (VA - ME) utilizing the energy efficient Knauf KoolDuct HVAC system and their own patented Techna-Duc Insulation system as a spring board. This combination provides clients, both commercial and industrial with the most energy efficient and cost effective methods of air conveyance in the market today.

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Basically, we looked at the merits of Knauf KoolDuct and how the energy savings, cost savings and the ease of installation would benefit our clients, especially with bringing the project in on time and under budget

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PTM Manufacturing, a division of EISI (, has recently contracted with Knauf Insulation to represent their KoolDuct HVAC system in the Northeast Region of the US. Knauf KoolDuct is an air conveyance system that is revolutionizing the HVAC industry by providing a more thermal efficient system that installs at least (2) two times faster than standard insulated sheet metal. Combined with their patented insulation system Techna-Duc, PTM Manufacturing ( is single handedly changing the way mechanical contractors look at doing business and how they can offer their clients the most thermal efficient and energy conservative method of air conveyance.

Knauf Insulation is a leading manufacturer of fiber glass insulation products and the North American distributor for KoolDuct, a high-performance pre-insulated duct system originally developed in Europe. The Knauf KoolDuct System features a CFC free closed cell phenolic foam board faced on both sides with reinforced aluminum foil, using patented aluminum flanges to connect duct sections and assure a strong, air tight closure.

The Knauf KoolDuct System is designed for the commercial and light industrial sectors of the market place, handling up to 4" w.g. of pressure for performance at the top end of the medium pressure class. The system offers significant advantages over other duct systems in terms of weight, space, installation time, installed costs, air leakage and energy performance. Knauf KoolDuct is a UL 181 Class 1 rated system and easily meets SMACNA Leakage Class 6 while providing thermal performance of R- 6.0 at 7/8" thick
(R-8.0 at 13/32").

Knauf KoolDuct is also a LEED approved product and can be utilized with Green Building Projects. The USGBC building in DC utilized Knauf KoolDuct to help gain platinum level status. The silicone used to seal all seams contains two anti-microbial agents to maintain exceptional air quality.

This unique, pre-insulated system helps address key challenges typically found in construction and renovation projects. The ducting is versatile and can be installed internally or externally, and concealed above a false ceiling or visibly mounted. It is easily modified and repaired and can be fabricated on-site with non-powered tools. D J Wagner Heating & Air Conditioning, Westville NJ ( ), is the newest contactor to be certified by PTM for KoolDuct fabrication and installation joining the KoolDuct team in August, 2008. "Basically, we looked at the merits of Knauf KoolDuct and how the energy savings, cost savings and the ease of installation would benefit our clients, especially with bringing the project in on time and under budget" states Drew Wagner, President.

PTM's patented Techna-Duc system is a premier pre-fabricated outdoor duct insulation system that improves air quality and thermal efficiency by insulating the duct and helping to prevent condensation and biological growth. Techna-Duc® is a pre-manufactured panel system manufactured as a (4) four piece-interlocking panel set. The interlocking panels are constructed with Dow Thermax® Polyisocyanurate Insulation, laminated in (2) two layers which equal an R-13 @ 2" thickness. The insulation is jacketed with .032" aluminum and sealed with vapor barrier compound. All joints interlock to insure a thermal seal.

Techna-Duc® is to be used on outside HVAC rectangular ductwork. The system is ideal on new construction and is an excellent choice to retro-fit existing outdoor systems that have failed. Techna-Duc® is a shop fabricated panel system that can be fabricated from "as built" drawings and installed with minimum field alterations. The interlocking panels are made from polyisocyanurate insulation which does not promote the growth of mold or mildew. The polyisocyanurate is laminated in (2) two layers for ease of installation over T.D.C. joint ductwork. The interlocking panels prevent air penetration, intrusion of water and water vapors. Therefore, air quality problems are virtually eliminated.

Techna-Duc® panels are rigid enough to avoid any sagging and withstand weathering. All of these unique features allow PTM to offer a 20 year limited warranty on all Techna-Duc projects. Steve Moses, Facilities Engineer at the Pennsylvania Housing Finance Agency (PHFA) in Harrisburg, PA was compelled to use Techna-Duc to insulate the rooftop ducts because of the 20 year warranty. The previous method of board and mastic had failed several times and could not sustain the elements being located (7) seven stories up and along the Susquehanna River. Steve indicated that he was not only impressed with the durability of the system, but that temperatures of the air inside the ducts had improved by 8-10 degrees and the air handling unit operating time was reduced by 20%-25%.

PTM Manufacturing continues to grow and seek new ideas for saving energy and improving air quality. "Our goal is to help our clients provide their employees with the best air quality while simultaneously improving the efficiency of their air conveyance systems, we do this with KoolDuct and Techna-Duc" said PTM president Pete Faverio.
With the ever changing need to improve air quality and energy efficiency combined with a national focus on LEED approved Green building projects PTM Manufacturing stands poised to lead the way in the Northeast.

PTM Manufacturing evolved from the insulation division of EISI in 2000. EISI was began in 1984 as Eastern Insulation concentrating on industrial and commercial mechanical insulation. Scope of work continued to increase as the demand for multi-craft mechanics grew. EISI continued to grow and now has a coatings division (painting, fire proofing, firestopping) and a scaffold division supporting the insulation and fabrication divisions.

Sterling Minter
Director of Sales
Eastern Industrial Services, Inc (EISI)


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