Insulated Next Generation Concrete Masonry: Better & Faster For Less Money


Tuesday, December 10th
12:00pm – 1:30pm

Holiday Inn
106 Wilmer Ave., Kearney, NE


Learning Units: 1.0 hour H/S/W LU Credit

Learning Objectives:

  1. Energy code compliance does not require continuous insulation (“ci”).
  2. Web configurations are no longer regulated by their thicknesses, but rather by the cross-sectional area of the webs connecting the face walls of the concrete masonry unit.
  3. f’m = 2000 psi enables structural engineers to spread vertcal rebar & grout columns for significant savings.
  4. Field experience confirms that masons can lay open-end LW CMU twice as fast as they can lay closed-end NW 3-web CMU.


Architects, mechanical engineers and some building officials frequently misinterpret one critical sentence that first appeared in the 2003 IECC; thus, they incorrectly conclude that energy code compliance mandates continuous insulation (“ci”), and fail to grasp the concept of continuous thermal mass. COMCheck® is used by most architects in most states to demonstrate energy code compliance for most commercial building designs. Building designs too often fail to pass COMCheck because architects fail to override the software’s very conservative embedded default values. Two changes to ASTM C-90 adopted in 2011 and 2014 respectively enable concrete block producers to offer “next generation” CMU that be laid faster, require less steel rebar, and provide for more energy efficient masonry buildings.

This course 1) corrects the critical misinterpretation, 2) facilitates more easily passing COMCheck, and 3) introduces design professionals to the benefits of “next generation” concrete masonry.



Bob Sullivan, Director, Technical Services, cfiFOAM, Inc.

BS/CE-Construction Option in 1962 from NC State preceded Bob’s 57 years technical & management career in the building products & construction industries. Among other responsibilities, Bob represented gypsum & insulation manufacturers to architects, contractors & distributors, and had leadership roles in developing interior partition systems, drywall finishing materials and innovative applications of mineral fiber insulation. Active for 20 years in the Insulation Contractors Association of America, he co-chaired the ICAA Technical Committee and Annual Conference & Expo, He was awarded ICAA’s Key Man six times. Bob actively participates in NCMA committees and task groups, and freely shares his knowledge of insulation materials and systems with architects, general contractors, building & fire officials, energy utilities, and industry peers to their respective benefit.


Please RSVP no later than Dec 9 at 2pm