As the weather warms up, buildings across sectors prepare to switch from heating to air conditioning. This transition can impact indoor air quality (IAQ), introducing allergens, dust, mould, and other contaminants into the environment. For property managers, building owners, and facility managers, preparing for this shift is essential to maintain a comfortable and healthy indoor environment.
This article covers the Top 5 IAQ issues commonly encountered when switching from heat to A/C and provides solutions to address each one. Ensuring a smooth transition keeps occupants comfortable and safe while minimizing potential IAQ-related complaints.
1. Dust and Allergen Accumulation
Over the winter, dust and allergens can accumulate within heating ducts, which may get recirculated once A/C systems are activated. Without adequate cleaning, these particles can contribute to allergies and respiratory discomfort among occupants.
Solution: Clean ducts and HVAC components before switching to A/C. Regular HVAC filter changes are also critical, especially in high-traffic buildings.
2. Mould and Moisture Build-Up
Moisture levels often increase when cooling systems are used, particularly in older HVAC systems. This added moisture can promote mould growth, creating air quality issues and potential health risks.
Solution: Conduct a professional IAQ assessment to check for mould spores before switching to A/C. Regular HVAC maintenance can also help manage moisture levels and prevent mould growth.
3. VOC (Volatile Organic Compounds) Release
Buildings are often more tightly sealed in winter, which can lead to a buildup of VOCs from cleaning products, paints, and furniture. Switching to A/C without proper ventilation can release these pollutants into the air, affecting indoor air quality.
Solution: Monitor VOC levels through an IAQ assessment. Increasing ventilation and using low-VOC cleaning supplies can also reduce pollutant levels in the air.
4. Poor Ventilation and Stale Air
During colder months, many buildings limit ventilation to conserve heat, which can result in stale air. When A/C systems kick in, poor ventilation can prevent fresh air from circulating effectively.
Solution: Check your building’s ventilation system to ensure it provides adequate fresh air intake. An IAQ assessment can help you identify areas where ventilation needs improvement.
5. Inefficient Airflow and Temperature Inconsistencies
Old or unmaintained HVAC systems can lead to poor airflow and inconsistent temperatures, which can reduce air quality and occupant comfort.
Solution: Regular maintenance, including coil and fan cleaning, will improve airflow. Schedule an IAQ assessment to detect any inefficiencies in the HVAC system before switching to cooling.
Conclusion: Ensure a Smooth Transition with IAQ Assessments
Switching from heating to A/C can impact your building’s IAQ in several ways. By addressing these top IAQ issues proactively, you’ll ensure a healthier, more comfortable environment for tenants, employees, and guests. For a seamless transition, consider scheduling a professional IAQ assessment and HVAC maintenance with T. Harris Environmental Management.
Ready to prepare your building for the switch? Contact us today for expert IAQ assessments and support.