Wall Spray Training Seminar

Proper training in Wall Spray is essential. Without training, it takes a long time to learn the process. Remember 1st impressions are the most lasting and Word Gets Around! Results of poor application will affect the contractor/builder relationship. An excellent job also gets around…and we all know how a few bad applications can ruin it for the rest of the insulation brotherhood.


  • New crews to be trained as well as experienced veterans trying to master their skills.
  • Owners making equipment purchasing decisions. New: Special break-out session for owner’s discussing marketing, pricing, and sales.

Seminar is fiber and machine ‘neutral’. Instruction will be provided for wall spray process using ‘any’ supplier’s fiber and most brands of machines.

When: Friday, April 3th, 2020.

One day of intense training:

  • First half: classroom instruction
  • Second half: hands-on spray training

Location: Cool Machines Factory, 740 Fox Road, Van Wert, Ohio 45891


  • Instructor: Ivan Sandau, widely accepted as one of the ‘early’ pioneers and innovators of the wall spray process.
  • Instructor: Ken Adams, the ‘Godfather’ of dense packing! 37 years experience and 24,000 homes dense packed over his career.
  • Speaker: Dave Krendl, Cool Machines (President). 32 years design & innovation of wall spray systems.

Fee: $500 per company (max attendees from each company is 4) or $250 for single registrant.

Continental breakfast and lunch provided.

Registration: First come basis. Maximum of twelve (12) companies (each day), to allow adequate spraying time for participants in our training facility.

For information call: Dave Krendl: Ph# 419-232-4871 or email: dave@coolmachines.com

Ivan Sandau: Ph# 540-273-1246 or email: ivan.coolmachines@live.com

Factory training offered every 3 months -or- schedule on-site training for your crew!


7:30 a.m. to 8:00 a.m. (Meet & Greet: refreshments provided)

8:00 a.m. (General Session #1 / All Participants)

  •   Welcome, Introductions, & Housekeeping / Itinerary overview for the day (classroom)
  •   Attendee profiles and expectations for the day. We want to meet your specific needs

8:15 a.m. Plant tour/Equipment Overview & Information related to classroom instruction. (training lab)

9:00 a.m. (Session #1 Classroom)

  •   Brief building science overview relating to wall spray.
  •   Conduction, Convection, Radiation.
  •   Air & Moisture migration, Fungus, Toxicity.
  •   What is Wall Spray and ‘Stabilized’ fiber application?
  •   Fiber compatibility and composition offering best fiberchoices for success.
  •   Basic Wall Spray Equipment recommendations.
  •   Questions and Answers.10:30 a.m. (Break)

10:45 a.m. (Session #2 Classroom)

  •   Detailed equipment information
  •   Integration and use of contractors current machines
  •   Small single machine application
  •   Large ‘plural’ dual hopper systems
  •   Machine & pump pressure adjustments and settings
  •   Monitoring and controlling moisture
  •   Solutions when fiber is not sticking to the wall
  •   Solutions to eliminate ‘sags’ in cavities
  •   Questions & Answers
  •   Factory tour showing various wall spray machines andaccessories

12:30 p.m. Lunch (provided on-site)

1:00 p.m. (Session #3 Training Facility)

  •   (3) Basic spray techniques: speed, distance, angles.
  •   Special structures: sound walls, box sills, bathrooms
  •   Use of netting and stapling technique
  •   Pre-cleaning job-site, air-sealing caulk, and prepping job
  •   Post-clean up at end of job, trimming for drywall
  • Hands-on demonstration of the teaching points explained above.
  •   Spray technique for sound walls, outlet boxes, plumbing walls and 10 ft. walls.
  •   All participants will have ample time to perform each function of the total wall spray experience. Each participant will be expected to actively participate in prepping area, making machine adjustment decisions, apply spray techniques, wall scrubbing, and loading machine with dry and recycle

2:45 p.m. (Break)

3:00 p.m. (Session #4)
 All Participants to meet in Classroom  Questions & Answers

4:30 p.m. (Approx. session end time)
Our trainers and staff are prepared stay as long as need at end of day to be sure you take advantage of this experience