Technical Standards

Building Performance Institute Technical Standards for the Building Analyst Professional (122K PDF)

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Residential Energy Services Network (RESNET) National Standard for Home Energy Audits

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Infraspection Institute Standard for Infrared Inspection of Building Envelopes

What to Expect?

What is an energy audit?

"A home energy audit is a service where the energy efficiency of a house is evaluated by a person using professional equipment (such as blower doors and infra-red cameras), with the aim to suggest the best ways to improve energy efficiency in heating and cooling the house.

An energy audit of a home may involve recording various characteristics of the building envelope including the walls, ceilings, floors, doors, windows, and skylights. For each of these components the area and resistance to heat flow (R-value) is measured or estimated. The leakage rate or infiltration of air through the building envelope is of concern which are strongly affected by window construction and quality of door seals such as weatherstripping. The goal of this exercise is to quantify the building's overall thermal performance. The audit may also assess the efficiency, physical condition, and programming of mechanical systems such as the heating, ventilation, air conditioning equipment, and thermostat." (from Wikipedia)

You can also find information about energy auditing at the Lawrence Berkeley National Laboratory website where they discuss energy auditing, tools used, and benefits of having an audit performed.

Is your Auditor certified?

There are several different "certifications" available to professionals performing energy audits. The two most widely accepted certifications are issued by the following organizations:

Building Performance Institute

Residential Energy Services Network

Generally speaking, a professional performing energy auditing or surveying services will be certified or trained by one or both of the organizations indicated above. These certification training programs are quite rigorous and require both classroom and field testing. Both organizations have technical, professional, and ethical standards by which certified auditors must practice.

BPI certifies "Professional Building Analysts" while RESNET certifies "Raters". The term auditor is used herein as a general term covering both certifications.

The auditor you choose should have a certification number that is verifiable by the appropriate organization.

Is your Auditor insured?

Your auditor should carry a General Commercial Liability policy, at a minimum. They should be able to provide you with a certificate of insurance if you wish.

RESNET requires Raters to carry Professional Liability (errors and omissions) coverage as well as General Liability. You should be able to receive a copy of both coverages.

We carry both General Liability and Professional Liability coverage.

Is your Auditor independent?

You may be tempted to accept a "free" energy audit from the local HVAC or window contractor. While these audits may offer valuable information, they may tend to be biased regarding recommendations for improvements to your house.

Lowry EcoSolutions is an independent service provider and has no ties to any other firm or contractor. Recommendations that we provide will be based solely on the basis of our investigation. We receive compensation only from you, our client.


We do ALL work under a written contract. Frequently this contract is in the form of an email, but if you prefer, we can provide you with a proposal letter that lays out all of the services proposed, when we will provide them, what final documentation we will provide, and how much these services will cost you.

What is the process?

An energy audit of your house will begin with a discussion between you and your auditor. Issues that will be covered include:

The auditor will then explain the process by which they will audit your house. This will include some or all of the following:

Blower door test

duct blaster

infrared image

What do you need to do in advance?

The auditor will want copies of your most recent utility bills including electricity, gas, oil, and water. They will use these bills to gain an understanding of your seasonal utility usage and how your home functions.

You will want to be present when the auditor is testing your house in order to answer questions that arise. However, the auditor will spend most of their time making observations and recording test data, so they will be quite busy.

You may also want to keep cats or dogs in a confined room or crate so they don't become too helpful to the auditor. It is also fine for children to be in the house, but they shouldn't be allowed to 'assist' the auditor while performing their observations and testing.

Audit Assistant

What are the results and how do I use them?

You will receive a report that will typically contain the following:

The auditor will discuss their findings at the completion of the audit, but may also offer suggestions or recommendations in the report.

Report and Recommendations

Included with the recommendations from your auditor will likely be suggestions for contractors to perform insulation and air sealing, heating equipment maintenance or replacement, window repair or replacement, among other trades. These suggestions are for your consideration as you may have a relationship with a contractor already.

Your auditor is here to help you and will try to answer any questions you have.