Insulation System Design

Free Online Training Class

This 2-hour online self-paced class teaches the basics and science of insulation in 5 modules. Each section of the Mechanical Insulation Education & Awareness E-Learning Series is 20-45 minutes and is followed by a quiz. You can incorporate these modules into your own training program or use them as an introduction to the basics of an insulation system.

Training Modules

  • Module 1 Educational Series Introduction and Defining Mechanical Insulation
  • Module 2 Benefits of Mechanical Insulation
  • Module 3 Mechanical Insulation, Science & Technology
  • Module 4 Mechanical Insulation Design Objectives and Considerations
  • Module 5 Mechanical Insulation Maintenance

Mechanical Insulation Design Guide (MIDG)

This website explains the different design questions you should consider when designing an insulation system. It is a decision tree that guides you through the process and assists you in insulation material selection. There are also 8 different insulation calculators that go beyond 3E Plus® and help you determine proper thickness, ROI, and how to control temperatures. A quick link to the calculators is in the next section.

Mechanical Insulation Design Guide

Insulation Calculators

These unique online calculators will help you determine how to build your insulation system.

Condensation Control

Energy Conservation—Financial Considerations

Economic Considerations—Return on Investment

Personnel Protection—Safety

Process Control

NIA's Membership Directory

Our members are one of our best resources. Search by contractor, distributor, fabricator, manufacturer, metal building laminator, company name, or by state. Click here to get started.

Technical Reference Materials—Spec Guides and Glossary

3E Plus

The North American Insulation Manufacturers Association’s (NAIMA's) free 3E Plus® is software program designed for fibrous insulation that makes it easy to calculate the appropriate insulation thickness necessary for any application. Download it for free from

MICA Manual

The National Commercial & Industrial Insulation Standards Manual, also known as the MICA Manual, was developed by the Midwest Insulation Contractors Association (MICA). The newly updated 8th Edition is available both in printed and interactive PDF versions with 111 MICA Insulation Plates, including vapor dams and a new Cryogenic Section, and updated Materials Property Section with tables conforming to ASTM Standards. Purchase it at