Common Home Ventilation Problems and How to Address Them

Most of today’s homes are built to be airtight. While this affords better control over indoor temperature and particulates such as dust and pollen, proper ventilation is often neglected. In this blog, HVAC contractor Reliable AC & Heat takes a look at the most common home ventilation problems.

Negative Pressure

Homes are sometimes so airtight that they have negative pressure. Think of your indoor space as a juice box. When you reach the point where you suck the contents of the juice box dry, its sides start caving in because of the pressure. Air then rushes back in the moment you stop sucking on the drinking straw.

A similar thing happens in an airtight home. Exhaust systems suck the air from the home little by little, resulting in negative pressure. Air is then drawn into crevices, gaps and other areas that aren’t intended for air intake. Conditions vary from home to home, which is why AC maintenance service contractors like us recommend tests and thorough inspections before coming up with a plan to address negative air pressure.

Indoor Air Pollutants

According to the U.S. Environmental Protection Agency (EPA), poor indoor air quality is one of the top five health hazards that affect today’s homes. This is due to the accumulation of volatile organic compounds (VOCs), which are particulates that are continuously emitted by common household items such as paint and plastics. While they’re harmless in small amounts, without proper indoor ventilation these pollutants can cause respiratory problems, as well as create conditions where mold can thrive.

Solving Ventilation Problems

The solution to ventilation problems is a combination of best practices and proper HVAC design. Opening the windows for at least 15 minutes a day can flush out indoor air pollutants, as well as relieve negative pressure. To facilitate air flow, there should be two windows opened: one acts as the exhaust vent, the other as the intake vent.

A properly-designed HVAC system allows for adequate ventilation. After all, that’s what the “V” in “HVAC” stands for. There are various types of ventilation systems that can be integrated into air conditioning and heating systems. Instead of choosing one on your own, you should have an HVAC professional determine the one that will work best with your existing HVAC system.

Call Reliable AC & Heat for Your HVAC Needs

Reliable AC & Heat is your leading provider of central heating services. Give us a call at (818) 423-4285 or fill out our contact form to schedule an appointment.