Clean Rooms West, Inc. — PIR Sandwich Panel Importer Company Profile

Published: August 29, 2026 | Source: cleanroomswest.com | Page ID: PNUM6651

Clean Rooms West, Inc. is a nationally recognized leader in cleanroom design, engineering, manufacturing, and construction based in Tustin, California. Since its founding in 1990, the company has designed, built, and installed thousands of cleanrooms for customers across a wide range of industries, including pharmaceuticals, biotechnology, medical device manufacturing, semiconductor production, and electronics. Operating as a single-source solution provider for cleanroom development projects, Clean Rooms West covers the entire project lifecycle—from initial conceptual design and estimation through engineering, manufacturing, installation, testing, and certification. The company employs between 100 and 200 professionals and has established itself as one of the most experienced cleanroom contractors in the United States. In May 2023, Clean Rooms West was acquired by Hodess Cleanroom Construction, further expanding its service capabilities and geographic reach across North America.

Company Overview and History

Clean Rooms West, Inc. has been at the forefront of cleanroom innovation since 1990, when it was established in Tustin, California, to serve the growing demand for controlled manufacturing environments in the western United States. Over more than three decades of operation, the company has completed thousands of cleanroom projects ranging from small modular enclosures to large-scale pharmaceutical manufacturing suites. The company’s integrated approach—combining design, manufacture, installation, testing, and certification under one roof—has made it a preferred partner for organizations that require precise environmental control for their manufacturing and research operations.

Throughout its history, Clean Rooms West has continually invested in research and development to stay at the cutting edge of cleanroom technology. The company’s engineering team works closely with clients across diverse sectors to develop customized solutions that meet evolving regulatory requirements and industry-specific challenges. This commitment to innovation has earned Clean Rooms West a reputation as one of the most technically capable cleanroom contractors in the nation. The company’s expertise spans the full spectrum of cleanroom types, from conventional stick-built construction to modular and portable systems, and includes specialized environments such as USP 797 compounding pharmacies, USP 800 hazardous drug handling suites, and cell therapy production facilities.

In May 2023, Clean Rooms West became part of Hodess Cleanroom Construction, LLC, a strategic acquisition that significantly expanded both companies’ service portfolios and geographic coverage. Hodess, headquartered in Attleboro, Massachusetts, now operates as North America’s leading critical environment contractor under the brand name “The Full Lifecycle Partner.” This merger combined Clean Rooms West’s West Coast manufacturing capabilities and industry relationships with Hodess’s East Coast presence and specialty construction services, creating a comprehensive platform capable of delivering critical environment solutions across the United States and Canada.

Company Registration and Contact Information

The following table provides the key registration details and contact information for Clean Rooms West, Inc. The company’s headquarters and primary manufacturing facility are located in Tustin, California, in the heart of Orange County’s industrial corridor. Following the 2023 acquisition, operations are integrated with the Hodess network while maintaining the Clean Rooms West brand identity for West Coast projects.

PIR Sandwich Panels in Cleanroom Construction

Polyisocyanurate (PIR) sandwich panels are among the most critical building materials imported and utilized by Clean Rooms West for the construction of cleanroom envelopes. These panels consist of a PIR foam core sandwiched between two outer metal facings—typically pre-painted steel or aluminum—creating a rigid, self-supporting structural element that simultaneously provides superior thermal insulation, fire resistance, and airtight sealing. In the context of cleanroom construction, PIR sandwich panels serve as the primary material for walls, ceilings, and sometimes flooring systems, forming the controlled envelope that maintains precise temperature, humidity, and particulate levels required by ISO 14644 and other regulatory standards.

Technical Properties of PIR Sandwich Panels

PIR sandwich panels offer several distinct advantages over alternative insulation materials such as traditional Polyurethane (PUR), rock wool, or gypsum board systems. The thermal conductivity of PIR foam ranges between 0.022 and 0.025 W/m·K, which represents a significant improvement over PUR panels (typically 0.028–0.032 W/m·K) and far surpasses rock wool (approximately 0.040 W/m·K). This superior thermal performance translates directly into lower HVAC energy consumption, which is a critical cost consideration for cleanrooms that require continuous air filtration and climate control 24 hours a day, 365 days a year.

From a fire safety perspective, PIR panels exhibit significantly better performance compared to standard PUR panels. PIR foam undergoes a chemical reaction during manufacturing that creates a more thermally stable molecular structure, resulting in higher fire resistance ratings. Many PIR panels achieve Class B1 fire ratings (limited combustibility) or better, and some specialized formulations can meet Class A non-combustible requirements when combined with appropriate facings. This fire performance is particularly important in pharmaceutical and chemical processing cleanrooms, where regulatory agencies such as the FDA and local fire codes impose strict flame spread and smoke development requirements.

The structural rigidity of PIR sandwich panels allows for faster installation compared to traditional stick-built construction methods. Panels are manufactured to precise tolerances in controlled factory environments, shipped to the project site, and assembled using interlocking joint systems that create virtually airtight seals. This panelized approach reduces on-site construction time by 30 to 50 percent compared to conventional methods, which is a significant advantage for clients who need to bring their cleanroom operations online quickly. The factory-controlled manufacturing process also ensures consistent quality across all panels, eliminating the variability inherent in field-fabricated systems.

PIR Sandwich Panel Technical Specifications

PIR Sandwich Panel Import Details and HS Codes

Clean Rooms West imports PIR sandwich panels from international manufacturers to supplement its domestic supply chain and meet the specific requirements of individual cleanroom projects. The most commonly used Harmonized System (HS) codes for these imports fall under Chapter 73 (Articles of iron or steel) of the HTSUS (Harmonized Tariff Schedule of the United States). The primary HS code for insulated sandwich panels used in cleanroom construction is 7308.90.51, which specifically covers insulated wall sandwich panels with steel facings and PIR foam cores designed for cleanroom wall applications. The broader classification 7308.90.00.00 is also frequently used, encompassing other structures and parts of iron or steel, including prefabricated building panels.

The global PIR sandwich panel market has experienced significant growth in recent years, driven by increasing demand from the pharmaceutical, semiconductor, and data center industries. Major exporting countries for cleanroom-grade PIR sandwich panels include China, South Korea, Turkey, Germany, and Belgium. Manufacturers in these countries produce panels that meet the stringent requirements of ISO 14644, GMP, and FDA standards for use in pharmaceutical and semiconductor cleanroom environments. The import process requires careful attention to product specifications, including core material composition, facing thickness, fire rating certifications, and dimensional tolerances, as any deviation from specifications can compromise the cleanroom’s ability to achieve its intended ISO classification.

For Clean Rooms West, the decision to import PIR panels versus sourcing domestically is driven by several factors: project-specific performance requirements (such as ultra-low outgassing for semiconductor applications), cost competitiveness for large-volume orders, lead time considerations, and the availability of specialized panel configurations that may not be readily available from domestic suppliers. The company’s procurement team maintains relationships with qualified international panel manufacturers and ensures that all imported materials meet applicable ASTM, EN, and ISO standards for cleanroom applications.

Services and Capabilities

Clean Rooms West offers a comprehensive suite of services that cover every phase of the cleanroom lifecycle, from initial concept through long-term operational support. This full-spectrum approach is one of the company’s key differentiators in the competitive cleanroom construction market, as it eliminates the need for clients to coordinate multiple contractors and ensures accountability across all project phases.

Design and Engineering

The company’s design and engineering team utilizes advanced Building Information Modeling (BIM) software and Computational Fluid Dynamics (CFD) analysis to optimize cleanroom layouts, airflow patterns, and contamination control strategies. Each project begins with a thorough assessment of the client’s operational requirements, regulatory compliance needs, and budget constraints. The engineering team then develops detailed design packages that include architectural drawings, mechanical and electrical specifications, HVAC system design, and construction sequencing plans. This upfront engineering investment is critical to ensuring that the finished cleanroom meets all performance requirements and passes certification testing on the first attempt.

Manufacturing and Construction

Clean Rooms West operates manufacturing facilities where cleanroom components—including wall and ceiling panels, modular cleanroom modules, doors, windows, air showers, and pass-through chambers—are fabricated to precise specifications under controlled conditions. The company offers both modular cleanroom systems, which are prefabricated off-site and rapidly assembled on-site, and conventional stick-built construction for projects that require custom architectural features or non-standard configurations. Their manufacturing capabilities include working with 304-grade stainless steel, aluminum, and static-dissipative materials that are essential for cleanroom environments where electrostatic discharge (ESD) could damage sensitive electronic components.

Testing, Certification, and Maintenance

After construction is complete, Clean Rooms West provides comprehensive testing and certification services to verify that the cleanroom meets all specified performance criteria. These services include airborne particle counting, airflow velocity measurements, HEPA/ULPA filter integrity testing, room pressurization verification, temperature and humidity mapping, and recovery time testing. The company’s certification professionals are trained and experienced in ISO 14644, IEST-RP-CC006, and NEBB (National Environmental Balancing Bureau) standards. Ongoing maintenance and repair services ensure that the cleanroom continues to operate at peak performance throughout its operational life, including filter replacements, recalibration of monitoring equipment, and periodic revalidation testing.

Service Portfolio Overview

Industries Served by Clean Rooms West

Clean Rooms West has designed and built cleanroom environments for a diverse range of industries, each with unique requirements for contamination control, environmental conditions, and regulatory compliance. The company’s ability to customize solutions for different industry needs has been a key factor in its long-term success and its impressive client retention rate.

Pharmaceutical and Biotechnology

The pharmaceutical and biotechnology sectors represent the largest share of Clean Rooms West’s project portfolio. These industries require cleanrooms that comply with Current Good Manufacturing Practice (cGMP) regulations enforced by the FDA, as well as international standards such as EU GMP Annex 1. Clean Rooms West designs and constructs facilities for drug manufacturing, sterile product filling, API (Active Pharmaceutical Ingredient) production, and quality control laboratories. The company has particular expertise in building USP 797-compliant compounding pharmacies and USP 800-compliant hazardous drug handling facilities, which require specialized HVAC configurations, negative pressure containment areas, and advanced air purification systems. Biotechnology clients also rely on Clean Rooms West for cell therapy production suites, gene therapy manufacturing spaces, and biosafety level (BSL) laboratories.

Semiconductor and Electronics

The semiconductor industry demands some of the most stringent cleanroom environments in the world, with facilities that must achieve ISO Class 1 to ISO Class 3 (equivalent to Federal Standard 209E Class 1 to Class 10) cleanliness levels. Clean Rooms West has experience building wafer fabrication facilities, photolithography bays, and cleanroom support areas for semiconductor manufacturers. These ultra-clean environments require specialized construction materials with extremely low particle generation and outgassing rates, precise airflow management using laminar flow hoods and unidirectional airflow patterns, and advanced vibration isolation systems. The electronics manufacturing sector also relies on Clean Rooms West for facilities that produce printed circuit boards, flat panel displays, and precision optical components, where even microscopic contamination can result in costly product defects.

Medical Device Manufacturing

Medical device manufacturers require cleanroom environments that comply with ISO 13485 quality management systems and FDA Quality System Regulation (21 CFR Part 820). Clean Rooms West designs and builds cleanrooms for the assembly and packaging of medical devices ranging from surgical instruments and implantable devices to diagnostic equipment and wearable health monitors. The company’s understanding of ISO 13485 requirements ensures that the cleanroom environment supports the manufacturer’s quality management system and facilitates regulatory inspections and audits.

Industry-Specific Cleanroom Requirements

Key Materials and Equipment

Clean Rooms West sources and works with a range of specialized materials and equipment that are essential for constructing high-performance cleanroom environments. The selection of appropriate materials is critical to achieving the desired cleanroom classification, ensuring long-term durability, and meeting regulatory requirements. The company’s procurement and engineering teams work together to specify materials that balance performance, cost, and constructability for each unique project.

Structural and Envelope Materials

The primary structural materials used by Clean Rooms West include PIR sandwich panels (as discussed in detail above), rock wool sandwich panels for applications requiring Class A fire resistance, and 304-grade stainless steel for pharmaceutical and biotechnology environments where corrosion resistance and cleanability are paramount. Ceiling systems typically feature walkable ceiling grids that allow access to the plenum space above for maintenance of HVAC ductwork, lighting fixtures, and fire suppression systems. The company also manufactures and installs cleanroom-grade doors with hermetic sealing systems, vision panels, and interlocking mechanisms that prevent simultaneous opening of doors leading to different cleanliness zones.

Filtration and HVAC Systems

Air filtration is the backbone of any cleanroom, and Clean Rooms West specifies and installs HEPA (High-Efficiency Particulate Air) and ULPA (Ultra-Low Penetration Air) filters that capture 99.97% to 99.9995% of particles at the most penetrating particle size (0.3 micrometers for HEPA, 0.12 micrometers for ULPA). The HVAC systems are designed to provide the required air change rates, which can range from 10 to 600 air changes per hour depending on the cleanroom classification. Temperature control is typically maintained within plus or minus 0.5 degrees Celsius, and humidity control within plus or minus 2% relative humidity for the most sensitive applications. Energy recovery systems, including enthalpy wheels and heat exchangers, are often incorporated to reduce the substantial energy costs associated with conditioning large volumes of filtered air.

Why Choose Clean Rooms West: Competitive Advantages

Clean Rooms West distinguishes itself in the competitive cleanroom construction market through several key advantages that collectively deliver superior value to clients. Understanding these differentiators is essential for organizations evaluating cleanroom contractors for their critical environment projects.

Single-Source Accountability: By providing design, manufacturing, installation, testing, and certification under one contract, Clean Rooms West eliminates the coordination challenges and finger-pointing that often arise when multiple contractors are involved. Clients deal with a single point of contact who is responsible for the entire project outcome, from initial concept through final certification and ongoing support. This integrated approach significantly reduces project risk and streamlines communication.

Decades of Experience: With over 35 years of continuous operation and thousands of completed projects, Clean Rooms West has encountered and solved virtually every type of cleanroom challenge. This deep institutional knowledge allows the company to anticipate potential issues before they become problems, propose proven solutions rather than experimental approaches, and deliver projects on time and within budget. The company’s repeat client rate—reported to be near 100% by parent company Hodess—is a testament to client satisfaction.

Full Lifecycle Support: Unlike many contractors who hand over the keys and walk away, Clean Rooms West provides ongoing support throughout the operational life of the cleanroom. This includes preventive maintenance programs, emergency repair services, filter replacement schedules, protocol management, and periodic recertification testing. This lifecycle partnership approach ensures that the cleanroom continues to meet its performance specifications long after the initial construction is complete, protecting the client’s investment and ensuring regulatory compliance.

Regulatory Expertise: The company’s team includes professionals with deep knowledge of the regulatory landscape governing cleanrooms across multiple industries. From FDA cGMP requirements for pharmaceutical manufacturing to ISO 14644 standards for semiconductor facilities, Clean Rooms West ensures that every project is designed and built to meet all applicable regulatory requirements. This expertise is particularly valuable for clients entering new markets or expanding existing facilities, where regulatory compliance gaps can result in costly delays and redesigns.

Frequently Asked Questions (FAQ)

What is Clean Rooms West, Inc.?

Clean Rooms West, Inc. is a nationally recognized cleanroom contractor based in Tustin, California, established in 1990. The company specializes in the design, engineering, manufacturing, installation, testing, and certification of cleanrooms and controlled environments. Since May 2023, it has been part of Hodess Cleanroom Construction, LLC, operating as a combined platform serving clients across North America with capabilities spanning the full lifecycle of critical environment projects.

What are PIR sandwich panels and why are they used in cleanroom construction?

PIR (Polyisocyanurate) sandwich panels are composite building materials consisting of a PIR foam core bonded between two metal facings (typically steel or aluminum). They are used in cleanroom construction because they provide excellent thermal insulation (thermal conductivity of 0.022–0.025 W/m·K), superior fire resistance compared to standard PUR panels, structural rigidity for fast modular installation, and airtight joint systems that are essential for maintaining cleanroom pressurization and contamination control. Their HS code for import purposes is typically 7308.90.51 or 7308.90.00.00.

What ISO classifications can Clean Rooms West achieve?

Clean Rooms West has the capability to design and build cleanrooms across the full range of ISO 14644-1 classifications, from ISO Class 1 (the most stringent, with fewer than 10 particles per cubic meter at 0.1 micrometers) through ISO Class 100,000 (allowing up to 35,200 particles per cubic meter at 0.5 micrometers). The company has particular expertise in ISO Class 5 (Class 100) environments for pharmaceutical and semiconductor applications, and can achieve the ultra-clean ISO Class 1–3 environments required for advanced semiconductor wafer fabrication.

What industries does Clean Rooms West serve?

Clean Rooms West serves a diverse range of industries including pharmaceuticals, biotechnology, medical device manufacturing, semiconductors, microelectronics, compounding pharmacies (USP 797/800), aerospace and defense, food and beverage, research and development laboratories, and data centers. The company’s ability to customize cleanroom solutions for different industry requirements, from GMP-compliant pharmaceutical suites to ultra-clean semiconductor fabrication rooms, has been a key factor in its long-term success.

What certifications and compliance standards does Clean Rooms West meet?

Clean Rooms West designs and builds cleanrooms that comply with a comprehensive set of industry standards and regulations, including ISO 14644 (cleanroom classification and testing), GMP (Good Manufacturing Practice), FDA regulations (including 21 CFR Part 820 for medical devices and 21 CFR Parts 210/211 for pharmaceuticals), CGMP (Current Good Manufacturing Practice), ISO 13485 (medical device quality management), USP 797 (pharmaceutical compounding), USP 800 (hazardous drug handling), and the legacy Federal Standard 209E. The company’s testing and certification services follow IEST-RP-CC006 and NEBB standards.

Where is Clean Rooms West located and how can I contact them?

Clean Rooms West is headquartered at 1392 Industrial Drive, Tustin, California 92780, United States. The company can be reached by phone at 800-772-6634 (toll-free) or 714-258-7700 (local). Their website is cleanroomswest.com. Following the 2023 acquisition by Hodess Cleanroom Construction, the combined entity also maintains offices in Attleboro, Massachusetts (headquarters: 8 North Main Street, Suite 400, phone: 508-695-1012) and multiple other locations across North America.

Does Clean Rooms West provide maintenance services after construction?

Yes, Clean Rooms West provides comprehensive maintenance and support services throughout the operational life of the cleanroom. These services include preventive maintenance programs, emergency repair services, HEPA and ULPA filter replacement, HVAC system servicing, environmental monitoring equipment calibration, protocol management, cleanroom cleaning and certification, periodic recertification testing, and facility upgrades and retrofits. This full-lifecycle support approach ensures that the cleanroom continues to meet its specified performance criteria and regulatory requirements over time.

Contact Clean Rooms West, Inc.

To learn more about Clean Rooms West’s cleanroom design, engineering, and construction services—or to request a consultation for your next critical environment project—visit their official website or reach out directly using the contact information provided above. As part of the Hodess Cleanroom Construction family, the company offers unparalleled expertise and geographic coverage for clients throughout North America.

Visit Clean Rooms West Official Website