As natural disasters become more frequent and intense, building resilient homes is a critical priority. Homes that can withstand weather-related impacts not only protect people and property but also require fewer repairs and use fewer resources over their lifespans—a key component of affordability.
The unique panelized building system of ONE PRECISION ASSEMBLIES™ (OPA) is designed to deliver a level of resilience that is difficult to achieve with traditional construction methods. Here are five ways OPA helps builders meet or exceed building codes while creating high-quality, energy-efficient homes that stand the test of time.
1. Weathertightness
OPA is a fully weathertight system adaptable to a wide variety of single and multi-family home designs. Wall, floor, and roof panels are prefabricated in a controlled environment, then rapidly assembled on-site—minimizing exposure to weather and reducing construction delays. Each sealed panel includes framing, sheathing, insulation, weather-resistant and vapor barriers, windows, and exterior finishes.
OPA’s innovative design also features a built-in service layer, isolated from the building envelope. This allows for initial and future electrical, plumbing, and HVAC work without compromising the home’s weathertight construction or overall performance.
2. Intelligent Moisture Management
Each panel includes a high-performance core that optimizes both thermal and moisture control. Industry-leading insulation, a smart vapor retarder, and self-healing weather barrier and underlayment work together to manage air and moisture, reducing energy use while protecting against issues like driving rain, ice dams, mold, and rot.
Panels can be tailored to deliver thermal resistance values ranging from R-20 to R-60, depending on climate zone. A dynamic vapor retarder adjusts its vapor permeability with the seasons to keep walls dry, minimizing mold and rot risk year-round.
3. High-Performance Materials
Every component of the OPA system is selected for durability, compatibility, and performance. From shingles and cladding to underlayment and insulation, the materials work together to meet or exceed standards for energy efficiency, indoor air quality, comfort, and resilience.
Fire-rated assemblies, impact-resistant exteriors, and wind-tested roofing systems are made possible through CertainTeed’s trusted portfolio of advanced building solutions.
4. Factory Quality and Precision
OPA panels are produced in a controlled environment with skilled labor and precision manufacturing—accurate within 1/16th of an inch. This ensures a tight fit on-site, reducing errors, rework, and delays.
The standardized factory process allows for early detection and correction of design issues before panels reach the jobsite. Each panel undergoes no fewer than five stages of quality control, ensuring performance and reliability at every stage.
5. Built-In Longevity
OPA assemblies are engineered for long-term flexibility. The isolated service layer makes future renovations or upgrades easier, faster, and more accessible without damaging the building envelope—helping reduce maintenance and extend the home’s usable lifespan.
Longevity is further backed by CertainTeed’s comprehensive warranty coverage. With a single-source warranty covering the entire building envelope, builders can avoid finger-pointing between manufacturers and subcontractors, while getting the support they need when it matters most.
Future-Proof Your Business with Panelized Construction
OPA’s durable materials and high-performance systems are designed to provide lasting comfort, safety, and energy performance—even as climate patterns shift. But the advantages go beyond building resilient homes to building a more resilient business.
From faster build times and consistent quality to reduced risk, fewer labor challenges, and less waste, panelized construction empowers builders to scale with confidence and meet the demands of today’s—and tomorrow’s—housing market.