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Building Science Principles
Certificate of Knowledge

Start Your Journey in Energy Efficiency & Building Science

Now Available in
English & Spanish!

Are you considering a career in energy efficiency, green building, or sustainability? Do you work in home inspections, construction, or real estate? Do you want to learn more about the home you live in? The Building Science Principles (BSP) Certificate of Knowledge is your first step to understanding how homes work as a system - improving comfort, efficiency, and performance.

Download the BSP Certificate Guide

What You'll Learn

 
The BSP Certificate provides foundational knowledge of building science, including:
  • How insulation, heating, cooling, ventilation, and appliances interact
  • The impact of energy efficiency on comfort, health, and safety
  • The role of building science in home performance and sustainability
  • The basics of renewable energy

How to Earn Your BSP Certificate

 
  1. Study the Reference Guide (Available in print or digital format) or find a BPI Test Center near you
  2. Take the Online Exam (100 multiple-choice questions, 70% passing score)
  3. Print Your Certificate

Completely Online! No proctor required. Take the exam anytime from your internet-connected computer.

 

Get Started Today!

 
Formal training is not required. However, there are organizations that offer training programs which can be highly beneficial.
 
Choose a BPI Test Center From Our Locator Tool or Study Materials:
  1. Digital Reference Guide (Desktop-friendly) – $119 if paid by ACH/Check/Debit or $122.57 if paid by Credit
  2. Printed Reference Guide – $139 + shipping if paid by ACH/Check/Debit or $143.17 + shipping if paid by Credit
  3. BSP Online Exam – $119 if paid by ACH/Check/Debit or $122.57 if paid by Credit
Need to retake? The exam fee applies to each attempt.
Take the exam anytime within one year of purchase.

Purchase the BSP Guide & Exam
 
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Why Earn Your BSP?

The Building Science Principles (BSP) Certificate is your gateway to understanding how homes really work. Whether you’re a contractor, program manager, salesperson, or simply curious about energy efficiency, the BSP gives you the foundational knowledge you need to talk confidently about comfort, energy use, health, and durability in buildings. No hands-on testing or field exams — just practical, real-world insights you can apply right away. Boost your credibility, expand your knowledge, and take the first step toward a smarter, more efficient future.

BPI Certified Professionals:

Earn 6 CEU credits by passing the BSP exam!

 
 

Who Should Earn the BSP Certificate?

Building Trade Professionals

Raise your credibility and communicate better with clients. Ideal for:

  • Contractors, remodelers, and HVAC Professionals
  • Energy product manufacturers & distributors
  • Solar & renewable energy sales teams
  • Home performance company employees

Homeowners, Students & Emerging Professionals

Kickstart your career in energy efficiency and sustainability. Perfect for:

  • Community college & vocational trade students
  • High school students interested in green building careers
  • Homeowners and anyone considering DIY projects

Home Inspectors, Appraisers, & Realtors

Gain a whole-home perspective to better serve your clients. Great for:

  • Home inspectors & real estate professionals
  • Mortgage & energy efficiency financing officers

Policy & Program Managers

Make informed decisions and improve program outcomes. Beneficial for:

  • Energy office staff & government regulators
  • Utility program managers & contract administrators
who should earn
Got a Question About
the BSP Certificate?
Email us and we will help you out!
The BSP Certificate really helped me connect the dots on how homes function as
a whole system. I don’t work in the field every day, but having this foundation gives
me the confidence to talk with contractors and customers about comfort and energy
in a way that makes sense.
Alexa Young, CA