Bellingham, WA – Building Science Principles

IN-PERSON Building Science Principles (E148)

Building Performance CenterBellingham, WA

Tuesday, Apr 14 from 8:30 am to 5 pm PDT
Overview

This Building Science Principles course is a 1- day training designed to introduce weatherization…

A Note About Ticket Types:

There are three different Ticket Types. You will need to choose the appropriate one in order to register.

WA State Weatherization (WX) Agency, Tribal, or WA State Department of Commerce Staff:

Those who are employees of a Commerce-recognized WA State Wx Agency, a staff member of one of WA State’s Tribes (with approval by Commerce), or Commerce staff. The list of Commerce-recognized WA State Weatherization Agencies can be viewed here.

WA State Wx Agency-Associated Contractor:

Contractors working under one of the WA State Wx Agencies (see above). At registration, you will be required to list the WA State Wx Agency(ies) you are associated with.

General Public/Non-Associated Contractor:

Those who neither work for nor under (as a contractor) one of the WA State Wx Agencies (see above).

Building Science Principles

IMPORTANT: This course is NOT the prerequisite to taking BPI’s Building Analyst Technician (BA-T) Field Exam. If interested in the prerequisite (BPI Building Science Principles (BSP) exam and resulting Certificate of Knowledge), please visit BPI.org/building-science-principles

BPI CEUs: 3.25

Course Description:

This Building Science Principles course is a 1- day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction and laboratory work using the Building Performance Institute’s Building Science Principles Reference Guide.

It is recommended that a Building Science Principles guide be purchased for each student or for each agency/company. The structure of the course is built around this textbook and is helpful for study and note taking.

Note: this course does NOT include the BSP certificate exam. This is hosted on the BPI website

Resources:

• BPI Building Science Principles Guide ($$)

• NREL Standard Work Specifications

Course Content & Objectives:

• Describe both the background and major principles of weatherization

• Describe interrelation and affects of building science on “house as a system”

• Describe heat transfer and control of heat movement

• Describe air movement and identify processes of air sealing

• Identify moisture movement, it’s effect on a home, and control options

• Identify mechanical systems and their main purposes

• Summarize energy audits including assessing baseload usage, doors, windows, and renewables

• Describe the audit process and recognize the required importance and data for energy modeling

• Identify appropriate weatherization measures based on Washington state guidelines

Course Requirements:

Technology

• Ability to download documents or access documents as needed

• BPC provided online Learning Management System – Moodle link to be sent by BPC

Expectation of attendance and class participation

Prerequisites and Work Experience:

• None necessary

Assessments and Grading:

All assessments will be multiple choice question style

• In-progress assessment activities throughout

• One final assessment

• Candidate must achieve a 70% or higher to pass the final assessment

CLICK HERE TO REGISTER.

Webinar – Building Science Principles

ONLINE Building Science Principles (E092)

Overview

This ONLINE Building Science Principles course is a 1- day training designed to introduce weatherization…

A Note About Ticket Types:

There are three different Ticket Types. You will need to choose the appropriate one in order to register.

WA State Weatherization (WX) Agency, Tribal, or WA State Department of Commerce Staff:

Those who are employees of a Commerce-recognized WA State Wx Agency, a staff member of one of WA State’s Tribes (with approval by Commerce), or Commerce staff. The list of Commerce-recognized WA State Weatherization Agencies can be viewed here.

WA State Wx Agency-Associated Contractor:

Contractors working under one of the WA State Wx Agencies (see above). At registration, you will be required to list the WA State Wx Agency(ies) you are associated with.

General Public/Non-Associated Contractor:

Those who neither work for nor under (as a contractor) one of the WA State Wx Agencies (see above).

Building Science Principles

IMPORTANT: This course is NOT the prerequisite to taking BPI’s Building Analyst Technician (BA-T) Field Exam. If interested in the prerequisite (BPI Building Science Principles (BSP) exam and resulting Certificate of Knowledge), please visit BPI.org/building-science-principles

BPI CEUs: 3.25

Course Description:

This Building Science Principles course is a 1- day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction and laboratory work using the Building Performance Institute’s Building Science Principles Reference Guide.

It is recommended that a Building Science Principles guide be purchased for each student or for each agency/company. The structure of the course is built around this textbook and is helpful for study and note taking.

Note: this course does NOT include the BSP certificate exam. This is hosted on the BPI website

Resources:

• BPI Building Science Principles Guide ($$)

• NREL Standard Work Specifications

Course Content & Objectives:

• Describe both the background and major principles of weatherization

• Describe interrelation and affects of building science on “house as a system”

• Describe heat transfer and control of heat movement

• Describe air movement and identify processes of air sealing

• Identify moisture movement, it’s effect on a home, and control options

• Identify mechanical systems and their main purposes

• Summarize energy audits including assessing baseload usage, doors, windows, and renewables

• Describe the audit process and recognize the required importance and data for energy modeling

• Identify appropriate weatherization measures based on Washington state guidelines

Course Requirements:

Technology

• Ability to download documents or access documents as needed

• BPC provided online Learning Management System – Moodle link to be sent by BPC

Expectation of attendance and class participation

Prerequisites and Work Experience:

• None necessary

Assessments and Grading:

All assessments will be multiple choice question style

• In-progress assessment activities throughout

• One final assessment

• Candidate must achieve a 70% or higher to pass the final assessment

REGISTER HERE

Webinar – Building Science Principles

ONLINE Building Science Principles (E088)

Overview

This ONLINE Building Science Principles course is a 1- day training designed to introduce weatherization…

A Note About Ticket Types:

There are three different Ticket Types. You will need to choose the appropriate one in order to register.

WA State Weatherization (WX) Agency, Tribal, or WA State Department of Commerce Staff:

Those who are employees of a Commerce-recognized WA State Wx Agency, a staff member of one of WA State’s Tribes (with approval by Commerce), or Commerce staff. The list of Commerce-recognized WA State Weatherization Agencies can be viewed here.

WA State Wx Agency-Associated Contractor:

Contractors working under one of the WA State Wx Agencies (see above). At registration, you will be required to list the WA State Wx Agency(ies) you are associated with.

General Public/Non-Associated Contractor:

Those who neither work for nor under (as a contractor) one of the WA State Wx Agencies (see above).

Building Science Principles

IMPORTANT: This course is NOT the prerequisite to taking BPI’s Building Analyst Technician (BA-T) Field Exam. If interested in the prerequisite (BPI Building Science Principles (BSP) exam and resulting Certificate of Knowledge), please visit BPI.org/building-science-principles

BPI CEUs: 3.25

Course Description:

This Building Science Principles course is a 1- day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction and laboratory work using the Building Performance Institute’s Building Science Principles Reference Guide.

It is recommended that a Building Science Principles guide be purchased for each student or for each agency/company. The structure of the course is built around this textbook and is helpful for study and note taking.

Note: this course does NOT include the BSP certificate exam. This is hosted on the BPI website

Resources:

• BPI Building Science Principles Guide ($$)

• NREL Standard Work Specifications

Course Content & Objectives:

• Describe both the background and major principles of weatherization

• Describe interrelation and affects of building science on “house as a system”

• Describe heat transfer and control of heat movement

• Describe air movement and identify processes of air sealing

• Identify moisture movement, it’s effect on a home, and control options

• Identify mechanical systems and their main purposes

• Summarize energy audits including assessing baseload usage, doors, windows, and renewables

• Describe the audit process and recognize the required importance and data for energy modeling

• Identify appropriate weatherization measures based on Washington state guidelines

Course Requirements:

Technology

• Ability to download documents or access documents as needed

• BPC provided online Learning Management System – Moodle link to be sent by BPC

Expectation of attendance and class participation

Prerequisites and Work Experience:

• None necessary

Assessments and Grading:

All assessments will be multiple choice question style

• In-progress assessment activities throughout

• One final assessment

• Candidate must achieve a 70% or higher to pass the final assessment

REGISTER HERE

Webinar – Healthy Housing Principles Training

ONLINE Healthy Housing Principles (E084)

Online event

Overview

This Healthy Housing Principles course is a 1.5-day (10 hours of instruction) training designed to introduce and reinforce the principles…

IMPORTANT: The BPI Healthy Housing Principles online exam will NOT be offered at BPC after this course. If interested, please visit BPI.org to register for and complete the exam.

————-

A Note About Ticket Types:

There are three different Ticket Types. You will need to choose the appropriate one in order to register.

WA State Weatherization (WX) Agency, Tribal, or WA State Department of Commerce Staff: Those who are employees of a Commerce-recognized WA State Wx Agency, a staff member of one of WA State’s Tribes (with approval by Commerce), or Commerce staff. The list of Commerce-recognized WA State Weatherization Agencies can be viewed here.

WA State Wx Agency-Associated Contractor: Contractors working under one of the WA State Wx Agencies (see above). At registration, you will be required to list the WA State Wx Agency(ies) you are associated with.

General Public/Non-Associated Contractor: Those who neither work for nor under (as a contractor) one of the WA State Wx Agencies (see above).

ONLINE Healthy Housing Principles

BPI CEUs: 13

Course Description:

This Healthy Housing Principles course is a 1.5-day (10 hours of instruction) training designed to introduce and reinforce the principles of a healthy home including the “Keep It…” principles. Students will participate in online instruction based on the Building Performance Institute’s Healthy Housing Principles Reference Guide.

Resources:

· BPI Healthy Housing Principles Guide

· NREL Standard Work Specifications

Course Content & Objectives:

· Describe the importance of a clean home and strategies to keep it clean

· Identify and explain moisture impacts and access points and simple steps to control moisture

· Identify and describe pests and ways to control pest activity including IPM

· Identify contaminants and their access points including strategies to control

· Describe home safety concerns and resources to prevent them

· Explain health impacts of air quality and the use of ventilation to remediate

· Explain thermal control and the health effects of uncontrolled heating and cooling

· Describe the effects of irregular or regular maintenance, areas and steps to maintain a home

Course Requirements:

· Technology

o Access to Zoom for course instruction

o Ability to download documents or access documents as needed

o BPC provided online Learning Management System – Moodle link to be sent by BPC

· Expectation of attendance and class participation

Prerequisites and Work Experience:

· None necessary

Assessments and Grading:

· All assessments will be multiple choice question style

o In-progress assessment activities throughout

o One final assessment

· Candidate must achieve a 70% or higher to pass the final assessment

Agenda:

Day One

8:30AM – 12:00PM – breaks included

· Overview of Training

· What is a Healthy Home?

· Keep it Clean

· Keep it Dry

12:00PM – 1:00PM Lunch On your own

1:00PM – 4:00PM – breaks included

· Keep it Dry cont’d

· Keep it Pest Free

· Keep it Contaminant Free

· BREAK

· Keep it Contaminant Free cont’d

· Keep it Safe

Day Two

8:30AM – 12:00PM – breaks included

· Keep it Ventilated

· Keep it Comfortable

· Keep it Maintained

· Washington State Healthy Homes Program

· Discussion / Evaluations

Webinar – Building Science Principles

ONLINE Building Science Principles (D956)

 

CEUs: 6.5

IMPORTANT: This course is NOT the prerequisite to taking BPI’s Building Analyst Technician (BA-T) Field Exam. If interested in the prerequisite (BPI Building Science Principles (BSP) exam and resulting Certificate of Knowledge), please visit BPI.org/building-science-principles

Course Description:

This Building Science Principles course is a 1-day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction referencing the Building Performance Institute’s Building Science Principles Reference Guide.

It is recommended that a Building Science Principles guide be purchased for each student or for each agency/company. The structure of the course is built around this textbook and is helpful for study and note taking.

Note: this course does NOT include the BSP certificate exam. This is hosted on the BPI website

Resources:

 

Course Content & Objectives:

      • Describe both the background of weatherization and key aspects of the weatherization process
      • Identify the types of energy movement and describe how they operate in the home
      • Summarize building science and describe pressure and thermal concepts
      • Describe how a house functions as a system of systems
      • Identify mechanical systems and describe their purpose and basic operation
      • Describe the audit process and recognize the required data for energy modeling
      • Identify appropriate weatherization measures based on Washington state guidelines
    • Perform a basic blower door test and describe the basics of combustion safety testing

REGISTER HERE

Webinar – Energy Efficiency Products Decoded (Part 2) – Building Systems

Energy Efficiency Products Decoded (Part 2) – Building Systems | February 17, 2026

8:30 AM to 11:00 AM MST | 6:00 PM to 8:30 PM MST

This session dives into the systems that power our homes—HVAC, water, lighting, appliances, solar, battery storage, and more—revealing how to optimize them for maximum energy efficiency, comfort, and durability. You will explore innovative products, practical solutions, and emerging technologies to improve performance, save resources, and enhance sustainability in everyday living.

REGISTER HERE

Webinar – Becoming a Building Science Expert

Becoming a Building Science Expert | January 20, 2026

8:30 AM to 11:00 AM MST | 6:00 PM to 8:30 PM MST

Discover the fundamentals of building science and how buildings function as interconnected systems. This training equips designers, builders, and inspectors with essential knowledge to improve energy efficiency, comfort, durability, and safety in homes.

REGISTER HERE

Virtual Seminar – Building Science Fundamentals

American Institute of Architects

Building Science Fundamentals

AVAILABLE: Live Virtual Seminar
 ,  ,  , 
16 AIA CEU credits
American Institute of Architects (AIA)
16 LU|HSW

Register Now

Price: $595.00

Limited Number of Spots

Building Science Fundamentals is a LIVE! virtual seminar that teaches the basic knowledge needed to design and build durable, energy-efficient, affordable, and healthy buildings. Our past registrants have benefitted tremendously from the interactive sessions with Dr. Lstiburek where questions are encouraged. Because of that, we limit attendance to 50 or so. Each $595.00 series consists of 4 afternoons of instruction. Upon completion of the seminar, members of the American Institute of Architects (AIA) will receive 16 LU|HSW posted directly to the AIA Provider website.

The time for the sessions will be from 1:00-5:00 pm EST.

Dr. Joseph Lstiburek will discuss building science principles (such as the control of heat, air, and moisture and IAQ) and show you how to apply them to low-energy enclosure design, advanced HVAC systems, forensic investigations, and the repair and retrofit of existing buildings.

The Fundamentals class has been attended by thousands of builders, architects, engineers, building science consultants, building code officials, facility managers, building product manufacturers, and government officials.

Agenda

Session One

1:00 pm – 5:00 pm

Session Two

1:00 pm – 5:00 pm

Environmental Separation The Myth of the Dew Point
Definition of a Building Roofs Vented and Unvented
The Effect of Climate Hygric Buoyancy
The Perfect Wall Ice Dams
The Water Molecule Basements
Relative Humidity and Vapor Pressure Crawlspaces Vented and Unvented
Air Flow and Vapor Diffusion Slabs and Flooring
Rain
Capillarity

Session Three

1:00 pm – 5:00 pm

Session Four

1:00 pm – 5:00 pm

Stucco Failures Retrofits
Pressure and IAQ Mass Buildings
Buildings as 3-D Airflow Networks Freeze Thaw
Controlling Pressures and Pathways Interior Foundation Retrofits
Stack Effect and Compartmentalization Historic Building Limitations
HVAC Frame Buildings
Part Load and Humidity Control Deep Energy Retrofits
Central Systems vs. Distributed Systems

 

REGISTER HERE

Bellingham – Building Science Principles

This Building Science Principles (formerly Introduction to Weatherization and Building Science) course is a 1-day training designed to introduce weatherization and building science principles. Students will participate in classroom instruction referencing the Building Performance Institute’s Building Science Principles Reference Guide.

Resources:

Course Content & Objectives:

    • Describe both the background of weatherization and key aspects of the weatherization process
    • Identify the types of energy movement and describe how they operate in the home
    • Summarize building science and describe pressure and thermal concepts
    • Describe how a house functions as a system of systems
    • Identify mechanical systems and describe their purpose and basic operation
    • Describe the audit process and recognize the required data for energy modeling
    • Identify appropriate weatherization measures based on Washington state guidelines
    • Perform a basic blower door test and describe the basics of combustion safety testing

CLICK HERE TO REGISTER.

Virtual Seminar – Building Science Fundamentals

American Institute of Architects

Building Science Fundamentals

AVAILABLE: Live Virtual Seminar
 ,  ,  , 
16 AIA CEU credits
American Institute of Architects (AIA)
16 LU|HSW

Register Now

Price: $595.00

Limited Number of Spots

Building Science Fundamentals is a LIVE! virtual seminar that teaches the basic knowledge needed to design and build durable, energy-efficient, affordable, and healthy buildings. Our past registrants have benefitted tremendously from the interactive sessions with Dr. Lstiburek where questions are encouraged. Because of that, we limit attendance to 50 or so. Each $595.00 series consists of 4 afternoons of instruction. Upon completion of the seminar, members of the American Institute of Architects (AIA) will receive 16 LU|HSW posted directly to the AIA Provider website.

The time for the sessions will be from 1:00-5:00 pm EST.

Dr. Joseph Lstiburek will discuss building science principles (such as the control of heat, air, and moisture and IAQ) and show you how to apply them to low-energy enclosure design, advanced HVAC systems, forensic investigations, and the repair and retrofit of existing buildings.

The Fundamentals class has been attended by thousands of builders, architects, engineers, building science consultants, building code officials, facility managers, building product manufacturers, and government officials.

Agenda

Session One

1:00 pm – 5:00 pm

Session Two

1:00 pm – 5:00 pm

Environmental Separation The Myth of the Dew Point
Definition of a Building Roofs Vented and Unvented
The Effect of Climate Hygric Buoyancy
The Perfect Wall Ice Dams
The Water Molecule Basements
Relative Humidity and Vapor Pressure Crawlspaces Vented and Unvented
Air Flow and Vapor Diffusion Slabs and Flooring
Rain
Capillarity

Session Three

1:00 pm – 5:00 pm

Session Four

1:00 pm – 5:00 pm

Stucco Failures Retrofits
Pressure and IAQ Mass Buildings
Buildings as 3-D Airflow Networks Freeze Thaw
Controlling Pressures and Pathways Interior Foundation Retrofits
Stack Effect and Compartmentalization Historic Building Limitations
HVAC Frame Buildings
Part Load and Humidity Control Deep Energy Retrofits
Central Systems vs. Distributed Systems

 

REGISTER HERE