For all new construction an Energy Calculation is required before your permit can be issued to ensure your intended project meets Florida energy conservation code.
The Florida Building Code requires all new construction and many remodeling projects to demonstrate compliance with the state’s energy conservation standards. Two of the most common pathways are R402 (prescriptive method) and R405 (performance method). These calculations ensure that a building meets minimum efficiency requirements for insulation, windows, HVAC systems, and overall energy use. At Calc Wizards, we provide professional R402 and R405 documentation that satisfies permit requirements and gives contractors, architects, and homeowners the confidence that their project is both compliant and energy-efficient.
Our advanced systems incorporate contemporary design and cutting-edge technology, ensuring the highest standards of comfort, energy efficiency, and air quality.
R405 energy calculations provide an insightful analysis of a home’s energy efficiency. This comprehensive assessment evaluates the heat loss and gain across various elements such as walls, roof, windows, and doors. By deciphering the energy performance of these components, builders can devise optimal strategies to enhance a home’s energy efficiency.
R405 energy calculations play a pivotal role in various aspects. Primarily, they offer invaluable insights to homeowners and builders about the energy performance of a house. This crucial information empowers them to design and construct homes that prioritize energy efficiency, leading to substantial long-term savings on energy bills.
Moreover, R405 energy calculations hold immense importance in complying with building codes and regulations. Numerous states mandate that new homes meet specific energy efficiency standards before obtaining construction approval. By conducting meticulous R405 energy calculations, builders can ensure their homes meet these stringent requirements, ensuring compliance and fostering sustainable construction practices.
R405 energy calculations are typically executed through the utilization of specialized software programs explicitly designed to evaluate the energy efficiency of buildings. These advanced programs consider a multitude of factors, encompassing the building’s dimensions, orientation, insulation materials, and thermal characteristics of its various components.
Once all these factors have been comprehensively assessed by the software, a detailed report is generated. This report serves as a valuable resource for builders, enabling them to pinpoint areas where energy efficiency can be enhanced. Valuable insights from the report may suggest replacing outdated windows with more efficient models or incorporating additional insulation in walls and roofs, among other potential improvements.
The R402 prescriptive method outlines specific building requirements—such as insulation R-values, window U-factors, and SHGC ratings—that must be met exactly as written. It’s straightforward but leaves little room for flexibility.
The R405 performance method allows for more design freedom by using energy modeling to demonstrate that the building’s overall efficiency meets or exceeds code. This approach is often used for custom homes, additions, or projects where the prescriptive path is too limiting.
Our team helps you choose the best path for your project and delivers the calculations needed for fast code approval.
Energy efficiency is more than just a code requirement—it directly impacts comfort, operating costs, and resale value. Non-compliance can delay permits, increase construction costs, or result in failed inspections. By securing accurate R402 or R405 calculations upfront, contractors and builders avoid costly revisions and ensure smoother project timelines. For homeowners, compliance means lower energy bills and a healthier, more comfortable indoor environment.
With more than 17 years of experience in HVAC and building performance, Calc Wizards delivers reliable, permit-ready R402 and R405 reports. Our streamlined process makes it easy: upload your plans, provide basic project details, and receive clear, accurate calculations that pass inspection the first time. We work closely with contractors, architects, and energy raters to ensure compliance without slowing down construction. When your project demands precision and speed, trust Calc Wizards to provide the energy code documentation that keeps you on schedule.
