Product Quality Audits

NTA, Inc. is an independent quality assurance and materials testing agency capable of providing a wide range of structural product testing and inspection services. NTA, Inc. has the equipment, knowledge and expertise to measure the structural performance of building materials and components using industry – standard engineering methods of evaluation. If no standard test method exists for your product or application, NTA, Inc. can develop a custom testing service method to suit your needs. In addition to testing, our network of inspectors, located throughout the country, enables NTA, Inc. to assess in-plant quality control procedures;  ensuring consistent quality of your product for code compliance. NTA, Inc. is also able to perform inspections and process audits in Canada because of their partnership with Intertek.

NTA, Inc. is accredited to perform audits on the following products (*must link to each individual page showing additional information and test methods. See current site):

Adhesive

• SIP Panel Adhesive
• Wall Adhesives
• Shear
• Tensile
• Bond Strength
• Creep Resistance
• Accelerated Aging
• Composite and Engineered Lumber Adhesives
• Adhesive Shearwalls

Fasteners

• Metal Connector Plates (Trusses)
• Bolts
• Nail
• Screws

Gypsum Wallboard

• Physical Properties

Plastics, Plastic Lumber and Composite Lumber

• Composite Decking, Guard Railing, Footing Pads, Structural Plastics
• Termite Resistance of Wood Products

Panel Products

• Gypsum
• Structural Sheathing
• Water Resistant Barriers

Structural Assemblies

• Structural Insulated Panels (SIP Panels)
• Metal Roofs
• Structural Sheathing,
• Windborne Debris (Hurricane)
• Light Gauge Steel
• Engineered lumber (LVL)
• Foam Plastics
• Air Infiltration
• Fasteners Assemblies
• Roof and Wall Assemblies
• Water Vapor Transmission
• Underlayment
• Laminated Sheathing
• Weather Resistance

Environmental

• High Temp Ovens, High and Low Humidity, Accelerated Aging
• California Third Party Certification (TPC-025) for Composite Wood Formaldehyde Qualification
• Formaldehyde Testing
• Volatile Organic Compound (VOC) Paints and Sealants

Metals

• Tensile and Yield Strength Testing

Plumbing Fixtures

• Ceramic Tile and Slip Resistance

 Paperboard

• TAPPI Standards

Comparative Testing

• Product Comparative Testing

HUD Structural Certification Testing

• 24 CFR 3280

NTA, Inc. is recognized by the following entities as being a leader in product quality audits:

ISO Guide 65 Approved (PCA -102) – IAS (Internal Accreditation Service) Accreditation (PDF)
California Built Housing Design Approval Agency (DAA) (PDF)
California Factory Built Housing Quality Assurance Agency (QAA) (PDF)
California Approved Listing Agency (PDF)
State of California Approved Third Party Certifier (TPC-25) Formaldehyde (PDF)
State of Ohio Approved Listing Agency (PDF)
State of Florida Assurance Agency (QUA3504) (PDF)
State of Florida Validation Agency (VAL3479) (PDF)
State of Florida Product Testing Laboratory (TST3478) (PDF)
ICC – ES Evaluation
City of Houston
Florida 9B-72
California QII
California Air Resource Board (formaldehyde)