Acadiana’s Largest Market for New Construction
Lafayette is Acadiana’s hub, and it’s also where the most new homes are being built. From the production subdivisions spreading south toward Youngsville and Broussard, to the custom homes along Verot School Road and Kaliste Saloom, to the infill projects in established neighborhoods near River Ranch, the UL campus area, and the Bendel Gardens corridor, new construction happens at every price point and every scale.
F & R Air Conditioning has been serving Lafayette since 1956. We work with production builders running multiple homes simultaneously and with homeowners building a single custom house they’ll live in for 30 years. The approach is the same either way: engineer the system for the specific house, don’t guess.
The Problem with Generic Sizing
Lafayette’s construction volume means some contractors take shortcuts. They size equipment by square footage alone, typically running 400-500 square feet per ton as a rule of thumb. That number might land in the right ballpark, but it’s wrong often enough to cause real problems.
A 2,400-square-foot home in the shade of mature live oaks on a north-facing lot in the Bendel area needs a different system than a 2,400-square-foot home on a treeless lot in a new south Lafayette subdivision. The sun exposure, insulation package, window sizes, ceiling heights, and occupancy patterns are all different. Manual J load calculations capture these differences. Rules of thumb don’t.
What Oversizing Costs You
In Lafayette’s humidity, an oversized system creates measurable discomfort. The equipment satisfies the thermostat in a few minutes, then shuts off. During that short run, it cooled the air but didn’t run long enough to condense moisture off the evaporator coil. Your house sits at 72 degrees and 65% relative humidity, which feels cold and damp. You turn the thermostat up, the humidity rises further, and you’re paying for cooling that isn’t making you comfortable.
Correct sizing keeps the system running longer at moderate output, pulling moisture from the air consistently. This is especially important during Lafayette’s shoulder seasons (April/May, September/October) when temperatures are mild but humidity stays high.
Duct Design for Different Home Types
Single-Story Homes
Most single-story homes in Lafayette use attic-run ductwork. Design priorities include keeping trunk lines centered over the floor plan, sizing branch ducts for balanced delivery to each room, and minimizing total duct length. Every foot of ductwork in a Lafayette attic (which can reach 150 degrees in summer) is absorbing heat your system has to re-remove.
Two-Story and Multi-Level Homes
Two-story construction is increasingly common in Lafayette’s new developments, particularly south of the Evangeline Thruway and along Ambassador Caffery. These homes need zoned systems. The physics are simple: heat rises. Without independent zone control, you either freeze the first floor to keep the second floor comfortable or accept that bedrooms upstairs will always run warm.
Zoning uses motorized dampers in the ductwork and separate thermostats for each zone. The system delivers cooling where it’s actually needed. For two-story homes, this is one of the most impactful comfort decisions you’ll make during construction.
Builder Relationships Across Lafayette
We work with general contractors throughout the Lafayette market, from large production builders with dozens of homes under construction to independent builders managing one or two custom projects at a time. Our involvement typically starts during plan review and continues through installation, commissioning, and final airflow testing.
For production builders, we can standardize system designs across a floor plan catalog while still adjusting for lot-specific variables like orientation and sun exposure. For custom builders, we design each system individually around the homeowner’s specific plans and priorities.
Advanced Options for New Builds
New construction is the right time to consider features that are difficult or expensive to add later:
- Whole-home dehumidifiers plumbed directly into the duct system
- ERV ventilation for controlled fresh air exchange
- Smart thermostat integration with multi-zone control
- High-efficiency variable-speed equipment that delivers 20+ SEER2 performance
These choices make the most economic sense when designed into the original system, not retrofitted after move-in.
Building in Lafayette? Call F & R Air Conditioning at (337) 893-5646 to schedule a plan review.