Fibrous Glass Duct Construction Standards – NAIMA
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Fibrous Glass Duct Construction Standards – NAIMA

Book Overview
The Fibrous Glass Duct Construction Standards – NAIMA provides technical guidance for the fabrication and installation of HVAC air duct systems made from rigid fibrous glass board. This edition is widely used by contractors, engineers, and designers seeking standards for systems using fibrous glass board instead of sheet metal.
Key Aspects:
- Comprehensive Construction Guidance
- Standardized Construction Details
- Air Leakage & Pressure Classifications
- Approved Joint & Closure Methods
- Thermal & Acoustical Performance
- Safety & Code Compliance
Highlights:
- Scope: Covers low-pressure air distribution systems (≤2 in. w.g.).
- Content: Includes detailed specifications on duct board types, dimensions, joint construction, closures, reinforcements, hangers, and fittings.
- Illustrations: Offers clear diagrams for constructing straight ducts and various fitting configurations.
- Purpose: Ensures energy-efficient, safe, and durable ductwork using fibrous glass insulation materials.
Key Features & Benefits
The Fibrous Glass Duct Construction Standards (FGDCS) by NAIMA, is a comprehensive technical manual that provides all the necessary specifications for designing, fabricating, and installing duct systems using fibrous glass duct board.
The practical application of the Fibrous Glass Duct Construction Standards (FGDCS) by NAIMA lies in its real-world use by HVAC professionals to design, fabricate, install, and inspect air distribution systems made from fibrous glass duct board.
The Fibrous Glass Duct Construction Standards (by NAIMA/SMACNA) is highly relevant for state HVAC licensing exams, especially if the exam includes questions on duct design, installation, materials, insulation, or energy code compliance.
- Helps You Understand Code-Compliant Duct Construction
- Reinforces Knowledge of Materials and Methods
- Teaches Proper Installation Practices
- Covers Air Sealing and Pressure Classes
- Supports Energy Code and IAQ Knowledge
- Boosts Confidence with Visual Learning
The Fibrous Glass Duct Construction Standards (NAIMA/SMACNA) manual includes several visual and organizational tools designed to make complex construction standards easier to understand, apply, and recall — especially useful for students, technicians, and exam candidates. Here’s a breakdown of the most important Visual & Organizational Tools in the manual:
- Detailed Technical Illustrations
- Construction Detail Tables
- Checklists
- Step-by-Step Instructions
- Schematic Diagrams
- Material Identification Charts
- Comparison Tables
- Glossary and Symbols Key
Book Details
- Publisher: North American Insulation Manufacturers Association (NAIMA)
- Edition/Release Date: 5th Edition, 2002
- ISBN: 978‑1617210150
- Pages: 88
- Dimensions: 8.5 x 11
- Format: Paperback / Softbound
- Target Audience: Professionals
Pricing & Purchase Information
• Price: $42.99
• Shipping: Free shipping on orders over $250.
• Formats Available: Physical Book
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