Technical Program

November 2 - 16, 2021 | Virtual Event

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November 2 & 4

Glass Mat 101 - Chemistry

Pete Wallace; President, Pete Wallace, LLC.

(12:00PM - 2:00PM EST)

This course is designed to give an overview of the chemistries and interactions in the production of wet formed Nonwoven fiber glass mat for technical and non-technical personnel. This course will provide an overview of chemical components that are used in glass production and how these components interact to affect the processing variables, binder cure and mat properties. Particular attention will be given to inherent variations in the chemistry and process that results in seasonal, daily and shift variations in mat properties and quality.

This is intended to be an introduction for new engineers, supervisors and operators that wish to understand the wet formed fiberglass mat process better. It is also a valuable review for experienced technical personnel, engineers, supervisors and managers who wish to look at their production process through renewed perspective. Non-technical personnel in the industry (purchasing, sales, marketing) will gain new perspective and insight into this process and the intricacies in making acceptable production mat.


Fiberglass Mat Process - A Living System

Moderator - Pete Wallace


November 2

Glass & Glass Sizing (Matt Przysiecki, Johns Manville)

White Water Chemicals (Joseph Cole, Saint Gobain)


November 4

Binders & Applicator (Dr. Robert Miller, Georgia Pacific Resins)

Curing Ovens (Matt Przysiecki, Johns Manville)


November 9

3M Economic Forecast: Asphalt Shingle Industry

Dan Houle; 3M (Global Finance Manager - Industrial Mineral Products Division)

(12:00PM - 1:00PM EST)

This presentation examines various factors that impact demand for asphalt shingles in the United States, including economic conditions, trends in the U.S. residential housing and roofing products markets, and weather-related factors.  The evolving short and long-term impacts of COVID-19 on the asphalt shingle and residential housing markets will also be considered.  In addition to a review of 2020 industry data, 3M will share an outlook for 2021 and 2022 shingle demand, including a mid-year review of 2021 industry data. 


Sustainability at Saint-Gobain

Rochelle Samuel; Saint-Gobain (Regional Environmental Engineer)

Pedro Romero Murciano; CertainTeed (Senior Plant Manager – Glass Mat)

(1:00PM - 2:00PM EST)

Saint-Gobain is one of the world’s largest building materials companies, and manufacturer of high performance solutions. Present in over 67 countries and ever-growing, the company employs the strategy of responsible growth, guided by its purpose, “making the world a better home.” Saint-Gobain has committed to ambitious targets for reducing carbon emissions, water withdrawal and discharge, and landfilled waste in its manufacturing facilities. In North America, this commitment is spearheaded by the business units, who have developed multifunctional sustainability teams with the aim of designing an actionable roadmap to achieve the business goals. This presentation details the sustainability programs and activities for the CertainTeed Roofing business unit, including the sustainability roadmap team organization and goals, best practices, and reduction projects.

Saint-Gobain has committed to sustainability targets for 2025, 2030, and finally net-zero carbon 2050. The 2025 goals are traditionally focused on energy, carbon, water discharge, and landfilled waste reduction. The 2030 goals are more aggressive and expand to non-operational improvements such as product stewardship, supply chain, and employee engagement. Site activities include compressed air optimization and reduction, upgrading inefficient equipment, reusing process water, finding alternative outlets for waste materials, and more. CertainTeed Roofing has launched a business-wide Green Team that shares best practices and encourages networking to align all sites to the sustainability objectives.


November 11

Nonwoven Wet-laid Processing: Chemical Approaches

Martin Hubbe; North Carolina State University (Professor and Buckman Distinguished Scientist)

(12:00PM - 1:00PM EST)

Wet-laid processing provides an effective way to prepare thin fiberglass mats with good uniformity and high production speeds.  However, success requires that the chemical aspects of processing be implemented carefully.  This tutorial overview will emphasize the importance of fiber quality, mechanical aspects, and aqueous chemistry.  Effective dispersion of fibers involves wetting, colloidal stability, and issues related to fiber entanglements.  Foam issues and hydrodynamic shear need to be considered.  Additives such as dispersants and thickeners need to be optimized, along with the procedural aspects.


Glass Mat Forming: Fiber Orientation MD/CD Tensile Ratio – Adjustments and Operation

Egon Friesenhahn; Voith SE & Co. KG (Product Manager Process Technology)

(1:00PM - 2:00PM EST)

The MD/CD tensile strength ratio of glass fiber mats is an important mat property. Depending on the end use of the mat, the MD/CD tensile strength needs to be adjusted to reach the desired properties for further processing of the fiber glass mat.

Glass fiber mats for roofing shingles need a preferred strength in machine direction resulting in a high MD/CD ratio. This is to ensure process stability when impregnating the glass mat with asphalt. Other glass fiber mats used for flooring or ceiling applications may need a more isotropic fiber orientation resulting in a lower MD/CD tensile strength ratio. 

Chemicals in the white water and the binder type impacts the maximum tear force. The fiber orientation is more related to headbox adjustments but also open draws in the wet end at the transfer positions are of influence and thus on the MD/CD ratio.

The presentation shows the main adjustments that impact the fiber orientation during the wet laying process. A trial result will show the impact of the adjustments on the MD/CD tensile ratio.


November 16

Wire Cleaning in Fiberglass Mat Manufacturing Processes

Claus Robberts; ProJet B.V. (Owner and President)

(12:00PM - 1:00PM EST)

In a typical Fiberglass Mat Manufacturing process, there are three conveyor wires involved:

On the Forming Wire, the typical type of contamination that can be found after several hours or even days of production is (loose) glass fibers. These tend to deposit onto the wire and sometimes slightly entangle into the wire yarns.

In the Saturator Section, binder (UF modifiers, formaldehyde free binders, and glass mat coatings) is applied to the glass fibers, typically acrylic/latex. The binder is used to bond the loose fibers, but, obviously, some of the binder material bleeds through the fibers onto the Saturator Wire. Over time, the build up of binder on the Wire gets so much that it loses permeability which leads to an uneven distribution of binder in Cross Machine Direction.

The Oven Section ensures curing of the binder together with the fibers, making sure a stable and coherent mat is produced. The oven belts tend to build up fairly quickly with contamination, which is acrylic binder and fibers, during normal production. This contamination needs to be cleaned very efficiently to be able to maintain normal operation.

Clean conveyor wires, with consistently high air permeability, deliver important productivity and performance advantages for all sections. In the Forming and Saturator Section, clean wires ensure proper mat formation and binder distribution. A clean Oven Wire gives a substantial improvement in available oven curing capacity and will eliminate any sheet quality issues (marking of the mat by contamination particles).

Wire contamination and especially oven wire contamination is becoming an increasingly more important parameter in the production process. Given the enormous demand for building products around the world, runability and line speed of the production lines is extremely important.  ProJet is a company with over 25 years experience in designing and manufacturing innovative process wire belt cleaning systems. The ProJet system consumes very little water, compressed air, and electrical energy. This innovative cleaning system is being used successfully by Glass Mat Manufacturers around the globe. Each ProJet system is designed for its specific position in the production line, i.e. Forming, Saturator or Oven Wire application.


Asphalt Roofing Manufacturers Association (ARMA): Asphalt Roofing Industry Overview

Aaron R. Phillips; ARMA (Vice President for Technical Services)

Miriam Higginbotham; ARMA (Health, Safety, and Environment (HSE) Director)

(1:00PM - 2:00PM EST)

This session will deliver an overview from the Asphalt Roofing Manufacturers Association (ARMA) featuring Aaron R. Phillips, ARMA Vice President for Technical Services and Miriam Higginbotham, ARMA Health, Safety, and Environment (HSE) Director. In addition to a brief industry update and outlook, Mr. Phillips will discuss current, relevant issues related to asphalt roofing materials in building codes and product standards, including initiatives related to wildland urban interface fires and wind resistance of roofing materials. Ms. Higginbotham will share pertinent HSE updates including ARMA’s engagement on the EPA Risk and Technology Review (RTR) for Fiberglass Mat and monitoring related to formaldehyde in asphalt roofing.



Pricing Chart



Non Member

Nov 2 & 4 



Nov 9



Nov 11



Nov 16



All 5



Only Sessions 9, 11, 16





In Case You Missed It...

Archived presentations below are available for paying customers only. If you would like to receive a presentation and are not a paying customer, please contact Portia Aofiyebi at [email protected].