October 2015

Have You Tried This For Your Radius Walls?

Pat Grotlisch and Thad Goodman

At National Gypsum, customer requests can catapult product innovation. In this case, global design firm CannonDesign was working on the University of California Jacobs Medical Center, the largest hospital project in southern California. When completed in 2016, this 10-story, 509,500-foot structure will include three specialized hospitals in one complex.

The challenge: there are a series of radius walls throughout the complex. To create these walls would usually entail an expensive, time-consuming process to fold, score, kerf and then plaster for the desired result.

To solve this massive challenge, the gypsum board subcontractor, The Raymond Group, contacted National Gypsum Company to develop a new radius wall system that could stay within their budget and construction schedule constraints. This system had to be a fire-rated assembly that would perform well given the design complexity of the project. But there was one problem: the optimum gypsum board did not yet exist. So our team worked efficiently to develop and test what would provide a good solution for them. Specifically engineered for radius applications requiring a fire rating, Gold Bond® brand 5/16” XP® Fire-Rated Gypsum Board is ideal to construct double-layered, fire-rated wall assemblies.

According to Thad Goodman, construction design manager for the Central/Midwest region, “Innovation and product ideas most often come to the industry from the lab or the board room. Our ability to respond to a job specific or contractor request speaks to the company’s commitment to putting our customers and their needs first.” And Pat Grotlisch, construction design manager for the West region, adds, “Developing the 5/16” XP Fire-Rated gypsum board for the Jacobs Medical Center is an excellent example of the flexibility and speed that National Gypsum Company enjoys because of NGC Testing Services. It is one of the most sophisticated and unique fully accredited acoustical, fire, structural and analytical testing facilities in the U.S. The team at National Gypsum Company was able to create, test and achieve a UL fire-rated assembly in a fraction of the time it would have taken without the resources of the test lab.”

5/16” XP Fire-Rated Gypsum Board:
  • Resists moisture and mold, with the highest possible scores on ASTM D3273 and ASTM G21.
  • Works for radius applications requiring a fire-rated assembly and one- and two-hour fire ratings.
  • Allows more design options than 5/8” gypsum board through layered shapes.

If you have any questions or if we can help you in other ways with projects on your board, don’t hesitate to contact your construction design manager today. We’re here to help you design better.

Product Overview

A Better Way To Build Those Radius Walls!

Gold Bond® brand 5/16” XP® Fire-Shield® Gypsum Board makes it easier to maneuver those curves in your project designs. Specify this fire-rated gypsum board for radius walls in your next project because it:

  • Features a high-density, fire-resistant gypsum core (for one-hour and
    two-hour fire ratings)
  • Provides more mold and mildew resistance (per ASTM G21 and
    ASTM D3273)
  • Resists surface abuse better (when tested in accordance with
    ASTM C1629)
  • Scores and snaps easily
  • Accepts a wide range of decorative finishes

Project Profile

Apple Campus II

Apple Campus II, Cupertino, California
Foster + Partners

The purveyor of the iPhone, iPad and Mac will soon be expanding. Dubbed the "Spacecraft," the company is now constructing Apple Campus II. This new campus will include four levels of circular office space totaling 2,800,000 sq. ft. and two below-grade levels mostly for parking totaling 1,500,000 sq. ft. The project is expected to get Leadership in Energy and Environmental Design (LEED) certification as an environmentally friendly project. When completed, the circle’s interior and exterior will be mostly constructed of glass and polished concrete, and solar panels will sit atop the circle. Key National Gypsum building materials will also be integrated into the growing high-tech headquarters: 400,000 square feet of Gold Bond® brand eXP® Tile Backer; 250,000 square feet of Gold Bond® brand Fire-Shield® Shaftliner XP® Gypsum Panel; 200,000 square feet of Gold Bond® brand eXP® Interior Extreme® Gypsum Panel; and 3.5 million square feet of Gold Bond® brand 5/8” XP® Fire-Shield® Gypsum Board.

Read More About The Project

Continuing Education

Here’s a scary thought: it’s almost the end of October and you still need to fulfill your CEUs? Take one of these continuing education courses before the month is over.

Gypsum Board: Beyond Recycled Content
1 hour/AIA HSW CE Hour
Cement Board And Exterior Finishing Systems
1 hour/AIA HSW CE Hour

Watch And Learn

Do you want to see Gold Bond® brand Hi-Impact® XP® Gypsum Board take on the competition? Or check out how easy it is to install Gold Bond® brand ThermalFoil® Gypsum Board or PermaBase® brand Cement Board? Take a rest from YouTube and give these entertaining, educational videos a look.

Click here to view


Amy Hockett
National Marketing Manager, Architectural Services & Sustainability

Trang Schwartz
Architectural Specialist

Scott Hughes
Northeast/Atlantic, Southeast/Gulf

Thad Goodman

Pat Grotlisch

Frank Fuller