Designing Isolation Areas in Animal Care Facilities

What You Need to Know about Animal Care Buildings

Isolation areas are a critical part of disease & infection control in animal shelters, veterinary hospitals, kennels, and other animal care facilities. Our engineering professionals know that effective isolation area design requires more than simply dedicating a separate room to sick or potentially infectious animals. Location, HVAC design, cleanable finishes, room sizing, and staff workflow all influence how effectively the space supports infection control.

Whether you are designing a new animal care facility or retrofitting an existing building, these five considerations should be part of the planning process.

1. Start With the Right Location 

Where an isolation area is located can have a significant impact on how effectively a facility manages disease transmission. Ideally, isolation spaces should be positioned so animals entering or leaving the area do not have to travel through high-traffic public spaces, healthy animal housing, or primary treatment areas. Creating physical separation between isolated animals and the general animal population can also make daily operations easier for staff to manage.

Staff circulation matters just as much as animal movement. Employees need efficient access to isolation without creating unnecessary movement between contaminated and clean areas. Within the isolation area itself, think about the entire workflow. Where will staff put on and remove personal protective equipment (PPE)? Where are cleaning supplies stored? Where will waste go? What equipment needs to remain inside the space?

Providing dedicated storage for PPE, cleaning equipment, and frequently used supplies can reduce unnecessary movement in and out of isolation and help create a more consistent workflow.

2. Pay Close Attention to Airflow and HVAC Design

Airflow is one of the most important elements of animal isolation room design.

Our animal care building designers know that where feasible, isolation rooms should maintain negative pressure relative to adjacent spaces. Negative pressure helps reduce the movement of potentially contaminated air from the isolation area into surrounding areas of the facility. The mechanical system should therefore be designed specifically around the function of the isolation space. Appropriate exhaust, outside air, and pressure relationships all need to be considered.

From an engineering perspective, simply connecting an isolation room to the building's standard recirculating HVAC system without evaluating where that air travels can undermine the purpose of the space.

The design process should also consider how pressure relationships will be monitored and maintained. An isolation room is only effective if its mechanical systems continue performing as intended after the facility becomes operational. For new construction and renovations, our engineers evaluate the unique isolation HVAC requirements based on the operational needs of our clients’ animal care environments.

3. Select Durable, Cleanable Materials and Finishes

Isolation spaces are cleaned and disinfected frequently, so material selection needs to support that reality. Walls should use smooth, nonporous, moisture-resistant surfaces with sealed joints. Depending on the facility and application, options may include epoxy coatings, fiberglass-reinforced panels, or other hygienic wall systems designed to tolerate regular cleaning.

Flooring should also be:

• Seamless or have minimal joints

• Slip-resistant

• Moisture-resistant

• Resistant to the chemicals used for cleaning and disinfection

• Easy to clean around edges and transitions

Integral coved bases can help eliminate difficult-to-clean joints where walls and floors meet. Porous materials, exposed wood, unnecessary penetrations, and excessive seams should generally be avoided in animal isolation areas because they can make thorough cleaning and disinfection more difficult.

4. Size Isolation Rooms Around How They Will Actually Be Used

There is no single ideal size for every animal isolation room. Instead, isolation room sizing should be driven by the animals, equipment, people, and processes that need to function within the space.

Consider:

• Type and number of animals being housed

• Kennel or cage dimensions

• Treatment requirements

• Staff access

• Cleaning activities

• Equipment

• Circulation around enclosures

Rooms that are too small can make animal handling, cleaning, treatment, and appropriate separation unnecessarily difficult. However, simply making isolation rooms larger is not always the answer. Oversized rooms can consume valuable floor area that might otherwise provide greater flexibility, including the ability to create multiple isolation spaces. The goal is to create enough space for the required work to happen safely and efficiently without sacrificing the facility's overall operational needs.

5. Plan Carefully When Retrofitting an Existing Facility

Can an existing room be converted into an animal isolation area? In some cases, yes. Creating isolation space in an existing animal shelter or veterinary facility does not always require a major renovation, but it does require thoughtful evaluation.

Begin by identifying a space that can be physically separated from general animal housing and public circulation. Depending on the building, an existing office, kennel, treatment space, or underutilized room may provide an opportunity for conversion. Next, evaluate the existing HVAC system. Determine whether the proposed isolation space can be served by dedicated exhaust or whether mechanical modifications will be required to establish the desired airflow and pressure relationships.

This is an area where assumptions can create problems. An experienced mechanical engineer should evaluate the system rather than assuming the existing HVAC can simply be adjusted.

A retrofit may also require physical improvements such as:

• Adding doors or partitions

• Sealing unintended openings

• Upgrading wall, floor, or ceiling finishes

• Adding dedicated sinks

• Creating PPE and supply storage

• Providing dedicated cleaning equipment or storage

The scope of the renovation will depend on the existing building and how the proposed isolation area needs to function.

What Makes an Animal Isolation Area Effective?

Ultimately, the best isolation area is one that supports both infection control and the people responsible for using it every day. Even a technically sophisticated space can be difficult to operate effectively if staff workflows were not considered during design. Thoughtful zoning, intentional airflow, durable finishes, appropriate room sizing, and practical workflows should work together as a system.

For animal shelters, veterinary hospitals, and other animal care facilities, planning these elements early can create isolation spaces that are easier to operate, maintain, and use consistently while supporting a safer environment for animals, staff, and the community. Contact us at 860-889-7078 or schedule a consultation today to discuss your facility specifics.