Clint Shireman
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I attended Indiana University, where I obtained my bachelor’s degree in 2012. Upon graduating, I moved back home to Columbus, IN, where I began work as a carpenter and independent contractor renovating homes in foreclosure. As a carpenter I was fortunate to pick up several different skills in a short time (everything from framing, painting, landscaping, to insulation.) I began working with Knauf Insulation in July of 2013 as a field trainer, which is where I was able to take the skills that I learned as a carpenter and apply them to my current field of residential training, focusing on the envelope. Knauf’s outlook on sustainability and improving energy performance with proper building science continues to be a great fit for me, and I am excited to be in the position to help further the knowledge of HPIP contractors.  

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Craig Marden
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Craig Marden is a Field Application Specialist in the Building Science/Sustainability group at Owens Corning and formerly Adjunct Faculty in the Building and Construction Technology Program and the University of Massachusetts at Amherst.  For 20 years he has worked in construction, weatherization and energy efficiency retrofitting, conducting thousands of blower door tests on new and existing residential buildings. Focusing on energy efficient and green construction and has professional experience as: Construction Manager, Carpenter, HERS Rater, LEED for Homes Rater, Energy Auditor, Heating system installer, Solar thermal installer, Air sealing technician. He holds a Massachusetts Construction Supervisor License. He is also a Certified Passive House Consultant.

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Jonathan Lang
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Jonathan Lang serves as a technical expert for Knauf Insulation, specializing in building assemblies, energy efficiency planning, and climate zones. He’s a talented technical communicator and trainer, with strong expertise in the building-as-a-system concept. He began in the Industry in 2009 earning a degree in Applied Science from Cincinnati State in Renewable Energy and Energy Efficiency.  He is certified with the Building Performance Institute as a Building Analyst / Envelope Professional/ BPI Rater/ ICC Residential Energy Inspector/Plans Examiner and has performed Over 500 comprehensive Home Energy Assessments.

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Rob Starr
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Rob Starr has been in the residential construction industry for 20 years, with 15 of those spent as a HERS Rater in California. In that time, he has expanded his knowledge of building science and obtained many different certifications in the field. Rob current work is mainly as a Training Program manager for CHEERS and ConSol and Technical Support Specialist for CHEERS Raters.

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Ken Allison
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With a passion for building science, teaching, and training, Ken has been installing, developing, and selling building products since 1990. Ken is a Preferred Provider and trainer through the International Code Council, and has his Building Analyst certification through BPI. As a trainer and business development manager for IDI, he travels the country helping contractors diversify into areas like commercial retrofit, and blown in or continuous insulation. Ken has given breakout sessions at the last 4 SPFA conferences on everything from blower doors and air sealing, to the changing building codes. His passion is helping contractors to decrease their liability and increase their profitability in high performance structures.

Shelby Beck
Mark Riemesch
Mark Riemesch

Mark Riemesch, National Account Manager, has been in the insulation equipment business for over 8 years.  His expertise is focused on the contractor customer by assessing their business and assuring them the correct machine purchase for their business size and growth strategy.  Mark currently is working with large national accounts and insulation manufacturers with attention on business and project growth.  His concentration is working with Krendl Machine R&D, to assure the proper set-up and settings for all insulation materials.  Mark expertise is in training contractors on-site to maximize their productivity.

Shelby Beck