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Building Performance

Solving the Difficulties of the Low-Load Home

I found out last month that the Air Conditioning Contractors of America (ACCA) is working on a new design manual.  […]

How to Air Seal an Attic “Right and Tight” – Part 2

In the first part of this article, we shared how Attic Systems contractors air seal all the gaps, holes, cracks […]

How to Air Seal an Attic “Right and Tight” – Part 1

When working to make a home more comfortable and energy efficient, simply adding more fiberglass batts or loose fill fiber […]

Are You Making These Mistakes With Manual J?

When you do a heating and cooling load calculation using ACCA Manual J, it’s important to be as accurate as […]

When Choosing a Heating and/or Cooling System Give Your Customer the Choice to Round Down

When choosing the right size heating and cooling system for your customer, it would be a great practice to give […]

Sizing, Installing, And Maintaining An HVAC System

When installing an HVAC system, calculate heating and cooling loads using a recognized method (ACCA Manual J), and ensure you […]

Case Study: Controlling Humidity in Affordable Multi-Family Housing for Health, Comfort and Property Protection

The following is the last article in a three-part series addressing mold and moisture control in multi-family housing.  The first […]

HVAC Design Is About More Than Equipment Sizing

Many people seem to think HVAC design means you get a load calculation (Manual J in the ACCA protocols) so […]

Case Study: Preventing Mold and Moisture Issues in Senior Housing

The following is the second article in a three-part series addressing mold and moisture control in multi-family housing.  The first […]

Making Homes Healthier for Families

Imagine that you are faced with a choice: a home you could afford, or a home that is healthy for […]

The Physics of Heat and Air Flow

Heating and cooling loads matter. That’s why we do load calculations. We enter all the details of the building, set […]

Is a Ventless Fireplace More Efficient Than a Condensing Furnace?

One of the primary benefits of an unvented gas fireplace is that you don’t lose any heat up the flue. […]

How To Create A Winning Culture

My Dad was a simple man with simple sayings that were profound.  He always said “the fish stinks from the head […]

The Ideal HVAC System for Multifamily Buildings: Designing for Health, Comfort, and Efficiency

The primary considerations for any HVAC system design should consist of health, comfort and efficiency – probably in that order […]

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