The Big Nerd Ranch

Atlanta, GA

The Big Nerd Ranch is a company founded by Aaron Hillegass, an early developer at Apple and author of what is considered the bible of Mac programming. He needed a new building for The Nerd Ranch, and decided on renovating a dilapidated iron works warehouse.

Aaron wanted to maintain the steel structure of the building, which was built haphazardly and left in poor condition. “This was one messed up building…it didn’t have a right angle in it,” said the project’s lead architect, Leslie Ellsworth with Kronberg Wall. It was very difficult to document dimensions, required extensive support in the field, and hours of going over details to manage unforeseen issues.

Leslie landed on Fabral for our wide variety of fresh ENERGY STAR® approved colors, and unparalleled collaboration. By working closely together, our engineering and customer care teams were able to provide materials for her to create a full-scale wall mockup. The renovated building features vertical to horizontal transitions using metal panels by Fabral in Pewter, Bright Silver, and custom Terra Cotta.

Turning an abandoned warehouse into a modern, functional, sustainable office building is no easy feat. But when you’re backed by Fabral’s personnel and materials, anything is possible.

Project Details

  • 46 squares of 4″ Rib exposed fastener wall panel in pewter
  • 72 squares of Powerseam standing seam roof panels in bright silver
  • 6 squares of Silhouette HCF 12-C concealed fastener wall panel in pewter with accents in terra cotta
  • Architect – Kronberg Wall
  • Distributor – Orion Associates
Click here for the before & after story

Color Details

Bright Silver and Pewter, along with custom Terra Cotta, were chosen for the walls and roof. These ENERGY STAR® approved colors support the sustainable initiative.

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Product Details

4” Rib®

Serving as an industry standard, these heavy-duty panels are primed for intense industrial and lagging applications

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4” Rib®

Panel Options Available: 8″ Rib is Available
Maximum Panel Length: 45′
Minimum Panel Length: 6′

Complete Panel Width Offering Includes:

GaugePanel WidthPanel Coverage
22 ga steel35.563″32″
20 ga steel35.563″32″
18 ga steel35.563″32″
Aluminum unpainted45.625″44″
Aluminum painted38.50″36″

4” Rib Gravity Load Table(Steel)

261 & 246342621NRNRNR
221 & 26246342822NRNR
201 & 2775743342823NR
181 & 2101755745363025

4” Rib Positive Wind Load Table (Alum.)



When curving is required for a design, this mechanically seamed structural standing seam roof panel can bend to create the desired look

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Maximum Panel Length: 47′
Minimum Panel Length: 6′

Test Data

Wind uplift UL90#90, 176, 180, 238, 548, 549
Air infiltrationASTM E283ASTM E1680.01 @ 15 psfLess than .01 @ 1.57psf
Water penetrationASTM E331ASTM E1646ASTM E2140No water @ 6.24 psfNo water @ 16 psfNo water at 6 hours

PowerSeam Wind Uplift Loads (PSF)

24 g steel12”5353535353
24 g steel18”3535353535
22 g steel12”7070707070
22 g steel18”4747474747

Box Rib HCF Series

The Fabral Box Rib HCF (horizontal concealed fastener) System is available in a range of profiles and configurations for architectural, commercial and industrial applications. With one to four ribs, this strong, durable wall panel system provides design versatility and performance. An interlocking sidelap hides fasteners and can be installed with or without clips to accommodate thermal movement

Box Rib HCF 2aC, 2C, 2wC, 3C
Box Rib HCF Series concealed fastener wall panels seamlessly integrate with adjacent materials, windows and design elements.


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Box Rib HCF Series

Panel Options Available: Multiple Panel Profiles Designs with both 12″ and 16″ options Check with local sales representative for availability of 20GA and 18GA steel options and .040 - .050 aluminum options. Subject to change without notice.
Substrate Offering:
.032″ Aluminum .040″ Aluminum .050″ Aluminum 18 Gauge Steel 20 Gauge Steel 22 Gauge Steel 24 Gauge Steel
Panel Features:
Factory Applied Sealant
Product Installation: Install panels plumb, level and straight so they are weathertight and without waves or other distortions that may limit thermal movement. Apply sealant tape or caulking as necessary at flashing and panel joints to prevent water penetration.
Product Maintenance & Warranty: Use proper care to ensure the durability of Box Rib HCF panels. Remove filings, grease, stains, marks or excess sealants from roof panel system to prevent staining. Store panels and flashings in a safe dry environment. Box Rib HCF has a 30-year finish warranty against cracking, chipping, peeling, fading and chalking.
Panel Width: 12", 16"
Hail Resistance: UL 2218 Class 4 Hail Impact Resistance
Fire Resistance: UL 790 Class A Fire Resistance
Maximum Panel Length: 30′
Minimum Panel Length: 2′

Wind Uplift Table

PANEL/SUBSTRATE SPANS 2'-0" 2"-6" 3'-0" 3'-6" 4'-0"
24 GA Steel 3 54 48 43 38 33
22 GA Steel 3 60 53 48 42 37
.032 Aluminum 3 48 42 36 30 24