HVAC Ductwork Design

Have you ever wondered how HVAC ductwork is designed? There are actually six methods for designing low, medium, and high-pressure HVAC systems: Equal Friction Method Static Regain Method T-Method Extended Plenum Method Velocity Reduction Method Constant Velocity Method The most commonly used method is the Equal Friction Method. This method is typically used for low-pressure

COVID-19 and Building Ventilation

COVID-19 building ventilation

Keeping your HVAC breathing through the Covid-19 pandemic. As the United States continues the fight against COVID-19 and many reopened businesses are concerned about indoor air quality, new requirements are being implemented for the public’s safety. Recently, New York allowed for the reopening of shopping malls but with a mandate from Gov. Andrew Cuomo: Update

Indoor Dew Point: Maintaining Thermal Comfort, Avoiding Building Damage

Window condensation is a sign of Indoor Dew Point

Condensation, moisture absorption and, subsequently, mold or organic growth are often a result of high indoor dew point combined with cool surface temperatures. For example, if a facility’s indoor dew point is above 60oF, it is possible that moisture will begin to condense on cool surfaces like ductwork, chilled water supply lines, windows, or refrigeration

How Restaurants Can Verify Proper Ventilation for Health & Comfort

If you have owned or operated a restaurant, you are familiar with the challenges of maintaining proper airflow throughout the building. From the kitchen to the front of the house to the back of the house, proper airflow can be challenging to keep in balance. That said, restaurants go out of balance for many reasons,

Prevent Sick Buildings: Why Positive Building Pressure Matters

Can a building get sick? I’ll give you the answer up front: Yes, sure, most definitely — a building can get “sick.” You may ponder… “But how can a building become sick? It is an inanimate object. It doesn’t live and breathe like humans!” On the contrary, your building is a living object. The main

COVID-19 Closures: Mitigating Damage to Unoccupied Buildings

COVID-19 closures

As states across the U.S. are working to flatten the curve, many businesses are impacted by COVID-19 closures as a result of “stay at home” or “shelter in place” orders to limit human interaction and prevent the virus’s spread. Additionally, many companies across the country have opted to temporarily close facilities to prevent employees from

Coronavirus & Indoor Air Quality

Now, maybe more than ever, many businesses are concerned about indoor air quality (IAQ) to protect employees and customers from coronavirus. With the current spread of COVID-19 across the globe, it is important that we are all taking the necessary steps to reduce the spread of the virus. As part of this, it is important

How Do Seasonal Changes Affect Building Health?

As we transition from dry, cool winter months to hot, humid summer months, you may be saying to yourself, “Woohoo! Bring on the heat!” However, seasonal changes can affect building health. Specifically, the summer season can present major problems for facility managers and building owners as their buildings’ HVAC systems struggle to keep up with

How Indoor Air Quality Influences Wellness

Indoor air quality (IAQ) can influence the cold/flu season. According to the American Medical Association, 50% of illnesses are caused or aggravated by polluted indoor air. The U.S. Environmental Protection Agency (EPA) believes this is because indoor air contains two to five times more pollutants compared to typical outside air. While the average person spends

Love Is in the Air (and So Are Dangerous Gasses)

With Valentine’s Day upon us, we can’t ignore the fact that love is in the air and all around. The season of love and Cupid’s magic are hard to ignore. Unfortunately, lovebirds, that isn’t the only thing you will find in the air this season. Dangerous gasses called Volatile Organic Compounds (VOCs) are lurking everywhere

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