close window

Building Science Principles Certificate of Knowledge

BSP Reference Guide

Get a sneak peek
at the reference guide!

Check It Out

Welcome to the Building Science Principles online portal.

This is where you can register to take BPI's Building Science Principles exam and/or purchase the Reference Guide.

How it works:

Register for an online account

  • Choose a username and password so you can access your account later

Purchase and study the Building Science Principles Reference Guide

  • You may purchase the printed version OR
  • You may purchase the digital version (viewed online only)
  • Access the online guide as often as you like for an unlimited time

Purchase an exam code and take the Building Science Principles Exam

  • The exam code is valid for one attempt to take the exam
  • If you fail the exam, you may purchase another exam code to take the exam again
  • The certificate is also stored in your account, so you can print your certificate anytime

Returning customer?

Login

First time customer?

Register