How Asphalt Shingle Replacement Works
Asphalt shingle roofing replacement begins with a detailed roof inspection.
We assess your roof deck—the plywood or OSB sheathing—and check for rot, decay, or sag in trusses, rafters, and joists.
Once the inspection confirms replacement is needed, we schedule the tear-off. Our crew removes old shingles and failing underlayment, exposing the substrate.
We install new synthetic underlayment or roofing felt, then lay ice-and-water shield in valleys and along the drip edge.
Step flashing and counter-flashing seal chimneys and pipe boots.
Finally, we install new shingles using ring-shank nails in staggered courses. Ridge cap and ridge vent complete the system, creating proper waterproofing and ventilation.
Shingle Options for Phoenix Homes
We offer three-tab shingles for budget homes, architectural or dimensional shingles for mid-range durability, and designer shingles for premium aesthetics.
Popular brands include GAF Timberline HDZ, Owens Corning Duration, and CertainTeed Landmark Pro.
Each shingle is laminated and granulated for UV protection.
Phoenix's intense sun and 111+ days at or above 100°F accelerate granule loss, so wind-resistant and algae-resistant shingles pay off over time.
Materials That Protect Your Roofline
Beyond shingles, your roofing system includes critical components. Underlayment—synthetic or felt—sits under shingles and blocks water seepage. Drip edge protects fascia from rot.
Flashing prevents leaks where the roof meets vertical surfaces. Step flashing seals chimney sides. Counter-flashing caps the top. Pipe boots seal roof penetrations.
Proper nailing, sealant, and adhesive placement make the difference between a 25-year roof and a 10-year one.
What We Inspect During Installation
- Roof deck integrity—checking for rot, decay, or soft spots in plywood and OSB sheathing.
- Granule loss on existing shingles—a sign of end-of-life wear from UV and heat exposure.
- Flashing around chimneys, skylights, dormers, and pipe boots—areas where water wicks into the structure.
- Ridge vent and soffit vent function—proper ventilation extends rafter and decking life by controlling moisture.
- Fascia and soffit condition—decay spreads quickly from these areas into the roof framing.
- Valley alignment and sealant—valleys direct runoff and are the most common leak points.
Phoenix Heat, Hail, and UV Degradation
Phoenix averages over 3,800 hours of sunshine yearly—more than most U.S. cities.
Sustained heat oxidizes the asphalt and bitumen in shingles, causing the sealant to fail and granules to erode.
At 111+ days per year hitting or exceeding 100°F, your roof deck heats intensely, drying out underlayment and causing expansion and contraction stress on fasteners.
This accelerates seal breakdown.
Monsoon season brings hail risk. Bruised shingles, fractured nails, and punctures allow water to seep into the roof deck.
Hail-resistant shingles are worth the premium if you're in a high-risk zone.
Timeline, Costs, and What's Included
Most asphalt shingle rerofs take 1–3 days, depending on pitch, size, and complexity.
Hip roofs, dormers, and steep pitches require scaffolding, ladder work, and extended labor time.
Costs vary by shingle type, roof square footage, existing deck condition, and debris removal. Structural repairs, rafter replacement, and flashing upgrades add to the total.
We provide a detailed roof estimate with labor, materials, and disposal costs broken down.
Call 602-533-0488 to schedule a free roof inspection, or request an estimate online.