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ROOFING DONE RIGHT

Tear-off.
Rebuild.

Let us Build Your Lifetime Roof

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Hillside ranch with a Sierra Gray roof

Sierra Gray close-up

TruDefinition® Duration® COOL · Sierra Gray · SRI 20

DESIGN YOUR ROOF

See it on a home. Open inspect to turn the actual surface.

Sierra Gray reflects about 20% of solar energy. Limited Lifetime product warranty · 130-mph wind · 25-year StreakGuard® algae resistance. Cool Roof compliance is confirmed for the address and the selected color. Confirm exact terms for your property.

Make this roof yours

WHY HOMEOWNERS CALL CITIUM

A roof is a system.
We install all of it.

01

Owens Corning Preferred

Duration® COOL specified and installed as a complete steep-slope system — not a shingle-only bid.

02

Tear-off to ridge cap

Decking, underlayment, ice-and-water, flashing, ventilation, and field shingles in one scope.

03

Cool Roof, for this climate

Sierra Gray and the COOL line bounce sunlight. We confirm SRI and CRRC for your address.

04

Local, warranty-backed

Glendale crew. Manufacturer coverage plus workmanship you can call.

Get a FREE estimate

ROOFS ARE NOT ALL THE SAME

Different materials.
Same attention.

Explore our systems

A dimensional surface.

Shaped by light.

Continuous. Precise.

Modified bitumen

Protection in layers.

FROM THE RESOURCE LIBRARY

What Los Angeles roofs
actually need.

Roofer inspecting seams on a white TPO flat roof with the Los Angeles skyline in the distance

Flat Roofs in L.A. Are a Different Sport

Why so many L.A. duplexes and mid-century homes need TPO — leaks at seams, Title 24 cool membranes, and what a real flat-roof bid includes.

Los Angeles homeowner reviewing a roofing estimate and contract at the kitchen table with a tape measure

If They Ask for Half Down, Hang Up

The legal down-payment cap in California is $1,000. How Mission Hills homeowners vet a C-39 license, insurance, and a real written scope.

White high-reflectance cool roof on a low-slope Los Angeles home surrounded by darker neighboring roofs

L.A. Will Pay You to Make Your Roof Whiter

Title 24 cool-roof rules and the 2026 LADWP rebate ($0.20–$0.60/sq ft): what qualifies, what to put on the invoice, and how to claim it.

New clay barrel tile roof on a Spanish Colonial Revival home in Los Angeles with bougainvillea

The Only 3 Roofs That Survive L.A. Sun (And the Ones That Don’t)

Tile, cool-roof shingles, or standing-seam metal? The honest material guide for Los Angeles and San Fernando Valley homes.

Owens Corning Preferred Contractor

Rooted in Glendale.
Here for Southern California.

Let’s talk about your roof.