Age plus symptoms
An older shingle roof that's also curling, losing granules or leaking is past the point where repairs pay off.
GLENDALE, CA · ROOF REPLACEMENT
Roof Replacement in Glendale, CA
A roof replacement takes the old roof down to the deck and builds a new system: decking repairs, underlayment, flashing, ventilation and the finished roof. Citium puts each part in a written scope, along with the permit.
01 /
What a roof replacement includes
A roof replacement, or reroof, removes the existing roofing down to the deck and installs a complete new roof. Citium prices tear-off as the default because it's the only way to see and fix the decking, and it lets the new underlayment, flashing and ventilation go on as one system.
A complete replacement scope covers tear-off and disposal, decking repairs priced per sheet, new underlayment, new flashing at walls, chimneys, valleys and penetrations, drip edge, ventilation, the finished roof covering, the permit and city inspections, and cleanup.
Citium's replacements are warranty-backed: manufacturer coverage plus workmanship. The terms for your roof are stated in the contract for your job.
02 /
Signs it's time to replace your roof
Leaks in more than one place
One leak can be a repair. Leaks in different rooms over a couple of winters mean the system is failing.
Soft or rotted decking
Spongy spots underfoot or dark, damp sheathing in the attic in several areas.
Two layers already
An overlay on top of an old roof hides the deck and adds weight. With two layers already on, tear-off is the right job.
Tile with failed underlayment
Tile often outlasts the underlayment beneath it. When the underlayment is brittle across the roof, the tile has to come up either way.
Tile roof repair and underlaymentA buyer's or seller's inspection flagged it
An aged roof comes up in almost every sale. Replacing on your schedule is easier than negotiating in escrow.
03 /
Roof systems for a Glendale reroof
Cool-rated architectural shingles
The most common reroof on pitched homes. Cool-rated shingles use reflective granules, and each color has its own CRRC-rated reflectance. Lighter colors reflect more sun. We check the rated values against what your address requires. Citium is an Owens Corning Preferred contractor and installs Owens Corning Duration® COOL shingles as a complete steep-slope system.
Shingle optionsTile re-roof
On a tile roof, replacement usually means lifting the tile, replacing underlayment and flashing, and relaying sound tile, or installing new concrete or clay tile. Whether existing tile can be reused depends on its condition and whether replacements can be matched.
Clay and concrete tileLow-slope sections
Porches, additions and flat areas get a membrane such as 60-mil TPO or a modified bitumen assembly, detailed where they meet the pitched roof.
Flat roof repair and systemsChanging materials
Switching from shingle to tile adds significant weight, so the structure has to be checked first. In Glendale, a change of roofing material also needs product information (manufacturer, material, color) with the permit application.
Source: City of Glendale, Permit Application Guidance (Re-Roof)
04 /
Tear-off or overlay?
| Full tear-off | Overlay (new layer over old) | |
|---|---|---|
| Decking | Exposed, inspected and repaired | Hidden under the old roof |
| Underlayment and flashing | All new, installed as one system | Old flashing often left in place |
| Weight | Old roofing removed | Adds a full layer of weight |
| When it's possible | Any roof | Only in limited situations; not with two existing layers |
| Citium's default | Yes | Only discussed when conditions allow and you understand the trade-offs |
05 /
The roof replacement process
- 01
Inspection and written scope
We measure the roof, check layers, decking from the attic, ventilation and flashing, and write a scope with the product, color and a per-sheet decking price.
- 02
Permit and materials
Citium includes the permit and inspection steps in the plan and orders materials once the product and color are locked.
- 03
Site preparation
We plan dumpster placement, parking and access, and protect landscaping and areas near the house before tear-off.
- 04
Tear-off and dry-in
Old roofing comes off to the deck. Open areas are covered with underlayment before the crew leaves for the day.
- 05
Decking and flashing
Damaged sheathing is photographed and replaced at the contract rate. New flashing goes in at walls, chimneys, valleys and penetrations.
- 06
Finished roof and inspection
The covering, ridge and vents go on, followed by the city's inspection, cleanup with a magnetic nail sweep, and a walkthrough with your documents.
06 /
What we check before pricing a replacement
A replacement estimate needs more than a measurement. We count the existing layers, look at the decking from the attic, check intake and exhaust ventilation, note every penetration and wall joint that needs flashing, and look at low-slope sections and drainage. If you're considering tile, we also note the framing so the structure can be evaluated.
Those findings go into the scope so the number you sign is the number for the job, with a clear per-sheet price if more decking turns out to be damaged.
07 /
What drives the cost of a roof replacement
Roof size in squares
Roofers price by the square (100 square feet of roof surface), and pitch, hips and valleys add surface beyond the home's floor area.
Material
Shingle, concrete tile, clay tile and membranes differ in material and labor cost.
Layers and tear-off
Each layer removed adds labor and disposal.
Decking
The amount of damaged sheathing is unknown until tear-off, which is why the per-sheet price belongs in the contract.
Pitch, height and access
Steep roofs, two-story homes, hillside lots and tight streets take more time and safety setup.
Details and extras
Chimneys, skylights, ventilation upgrades, low-slope sections and solar panel removal and reinstall.
Financing
Citium offers financing. Ask about current options, terms and the application process before you sign.
Financing options08 /
Glendale-specific planning
Permit
Glendale reroofs go through the city's GlendalePermits portal, with product information required for a change of material.
Source: City of Glendale, Permit Application Guidance (Re-Roof)
Cool roof rules
Title 24 can require a cool-rated product when most or all of a roof is replaced, depending on climate zone, slope and exceptions such as ceiling insulation. We check it for your address.
Sources: California Energy Commission, 2025 Building Energy Efficiency Standards (Title 24, Part 6); California Energy Commission, Cool Roofs fact sheet (reroof trigger when more than 50% of a roof is replaced; climate zone, slope and exceptions apply)
Fire hazard zones
If your property is in a mapped Fire Hazard Severity Zone, roofing and vent requirements can be stricter. Check the state map.
Class A roofing in fire zonesSource: Office of the State Fire Marshal (CAL FIRE), Fire Hazard Severity Zones
Utility rebates
Homes in the City of Glendale are served by Glendale Water & Power, so LADWP rebate programs for City of Los Angeles customers don't apply. Check GWP's current residential programs.
Source: Glendale Water & Power, Residential Programs & Rebates
Timing
Schedule in the dry months when you can. A replacement started in winter needs a plan for rain between work days.
09 /
Roof replacement questions
How long does a roof replacement take in Glendale?
Many single-family shingle reroofs take a few working days on site. Tile, steep or complex roofs take longer, and rain or extra decking repairs can add days. Permit timing comes before that. Your scope includes an expected schedule.
Do I need a permit to replace my roof in Glendale?
Yes. Reroofs in the City of Glendale go through a city roofing permit on the GlendalePermits portal. Citium includes the permit and inspection steps in the project plan.
Source: City of Glendale, Permit Application Guidance (Re-Roof)
Will my new roof have to be a cool roof?
Possibly. California's Title 24 energy code can require a cool-rated product when most or all of a roof is replaced, depending on climate zone, roof slope and exceptions such as attic insulation levels. Citium checks the requirement for your address and product.
Sources: California Energy Commission, 2025 Building Energy Efficiency Standards (Title 24, Part 6); California Energy Commission, Cool Roofs fact sheet (reroof trigger when more than 50% of a roof is replaced; climate zone, slope and exceptions apply)
Can I stay home during a roof replacement?
Yes, most homeowners stay. Expect noise during the workday, a dumpster in the driveway, and limited access near the house on tear-off day. Keep pets and cars clear of the work area.
Can I switch from shingles to tile?
Sometimes. Tile is much heavier, so the framing has to be evaluated first. In Glendale, a change of roofing material also requires product information with the permit application.
Source: City of Glendale, Permit Application Guidance (Re-Roof)
What happens if you find rotted decking during tear-off?
Damaged sheets are marked, photographed and shown to you, then replaced at the per-sheet price already written into your contract. You aren't asked to negotiate a new price with the roof open.
Does homeowners insurance pay for a roof replacement?
Policies differ. Many cover sudden damage, such as wind or a fallen tree, and exclude wear from age and sun. Read your policy or ask your agent before assuming a claim will cover a reroof.
GET STARTEDCitium Roofing Solutions 401 N Brand Blvd, Unit L106B, Glendale, CA 91203818-531-1277citiuminc@gmail.com
Talk to Citium about your roof
Call 818-531-1277, email citiuminc@gmail.com, or request an estimate online. Citium Roofing Solutions is at 401 N Brand Blvd, Unit L106B, Glendale, CA 91203.