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Complete Roofing Services for San Jose and the Silicon Valley.
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Cal-Pac Roofing
Featuring SteelROCK™ Roof Products
The Silicon Valley sees every kind of weather and act of nature. Rain, high winds, earthquakes, wildfires — you name it, we've got it. A quality roof protects your home — and the best roof for your home is a stone-coated steel tile or shake roof from Cal-Pac Roofing.

Why is Cal-Pac the best choice?
We've been doing this the longest. We introduced stone-coated steel roofing to the United States over 30 years ago. We know the technology, we know the industry, and we know the Silicon Valley.

Click to view different roofing profiles:   

Pacific Shake|Pacific Tile |Villa Tile|Metro Cottage Shingle

SteelROCK™ Roof Products
Every SteelROCK panel is formed from 26-gauge Galvalume® steel and covered with natural stone granules that are embedded in a 100% acrylic resin basecoat. The panels are then finished with a clear acrylic over-glaze to seal and protect the stone granules.

SteelROCK panels are not only strong, lightweight and durable but they’ve also surpassed the industry’s highest performance tests to date. All of SteelROCK’s blended colors are enhanced with flashes of rock granules in either a dark or light accent to add a subtle beauty to the roof’s overall appearance.

The panels are backed by a lifetime limited warranty covering 120-mph winds and a Class-4 Hail impact (UL 2218) resistance rating. SteelROCK is proud to offer today’s homeowners and builders a product that will provide years of maintenance free protection and beauty.

Want to learn more? Give us a call at 408.370.3332, or send an email to


SteelROCK Roof Products.
Quality, Beauty, Safety, Curb Appeal

  • Lifetime Limited Warranty
    Non-prorated & fully transferable, residential single family dwellings, not applicable to entities capable of an infinite life.
  • Strong and Walkable
    26-Gauge Galvalume steel coupled with aggressive angles provide a solid walking surface.
  • Lightweight
    1.5lbs /per sq. ft.
  • Class-A Fire Rated
    Verify correct underlay to meet codes.
  • 120-mph Wind Warranty
    Tested in the harshest conditions, can be engineered tomeet FL HVHZ wind codes 150-mph.
  • Hail Impact Warranty
    No perforation of the SteelROCK panel from hail UL 2218 Class-4 rated.
diamond certified
We also clean metal roofs!



CAL-PAC Roofing.
Northern California's most experienced provider of stone-coated steel roofing systems.

For more information, please call 408.370.3332 or email

Cal-Pac Roofing | 1350 Dell Avenue #101, Campbell, CA 95008 | (408) 370-3332