FAQs and glossaries
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We want to provide answers to your toughest building questions and help you find the right products for your next project. Select your topic below and find answers to the questions we are asked most frequently at 1-800-NATIONAL and in our webinar series.
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National Gypsum Construction Services
Connect TodayFAQs | 1-800-NATIONAL
Questions most frequently asked by callers to National Gypsum Construction Services
FAQs | Acoustics
Answers to commonly asked questions about acoustical assemblies and STC ratings
FAQs | Control Joints
National Gypsum’s Construction Design Managers answer questions often received about control joints
FAQs | Fire-Rated Assemblies
Answers to commonly asked questions about fire-rated assemblies
FAQs | Gypsum Plaster
Find answers to common gypsum plaster questions from the Construction Services team
FAQs | Panelized Construction
Answers to commonly asked questions about panelized construction.
FAQs | PermaBASE
Frequently asked questions about PermaBASE building products
FAQs | ProForm
Frequently asked questions about ProForm finishing products
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National Gypsum Webinar Series
Learn MoreWebinar Q&A | Acoustically Enhanced Gypsum Board
Questions from attendees during the November 12, 2020 webinar
Webinar Q&A | Advantages of Using Coverboards
Questions from attendees during the September 15, 2021 webinar
Webinar Q&A | Cement Board: Innovative Exterior Applications
Questions from attendees during the April 7, 2022 webinar
Webinar Q&A | Finishing Gypsum Board
Questions from attendees during the September 15, 2022 webinar
Webinar Q&A | Gypsum Resources for Better Design
Questions from attendees during the November 29, 2022 webinar
Webinar Q&A | High Performance Gypsum
Questions from attendees during webinar last presented on November 6, 2024.
Webinar Q&A | Understanding the UL Fire Resistance Directory 101
Questions from attendees during the August 27, 2020 webinar
Webinar Q&A | Understanding the UL Fire Resistance Directory
Questions from attendees during the August 22, 2024 webinar
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National Gypsum Company is the exclusive service provider for products manufactured by Gold Bond Building Products, LLC, PermaBASE Building Products, LLC and ProForm Finishing Products, LLC