How are roof repair scopes specified in Phoenix?

Phoenix sun bakes standard 30 lb organic felt into brittle charcoal under tile within twelve years. Concrete and clay barrel tiles last fifty years or more, but the felt underlayment beneath them deteriorates and splits. When monsoon rains blow uphill under tile laps, water cascades straight onto bare plywood.

In our Tile Remove & Replace (R&R) process, we carefully lift existing tiles from the affected roof planes and stage them on padded roof runners. We pull the deteriorated organic felt down to bare CDX plywood sheathing, cut out any dry-rotted sections along the fir rafters, install new 15/32" exterior sheathing, and install two layers of SBS modified bitumen underlayment. Existing tiles are then re-hung using non-corrosive fasteners with freshly sealed mortar hip and ridge closures.

High summer surface heat softens shingle asphalt, and subsequent 50 mph monsoon gusts tear wind-weakened tabs off the deck or break their factory seal strips. Once the seal line fails, shingles flap in crosswinds and allow wind-driven rain to reach the substrate.

We replace wind-lifted tabs and cracked shingles using color-matched Owens Corning TruDefinition Duration or GAF Timberline architectural shingles. Every replacement unit is secured with four to six hot-dipped galvanized ring-shank roofing nails driven through the reinforced nailing zone, and hand-sealed with commercial-grade SBS asphalt adhesive to resist future microburst uplift.

Spray Polyurethane Foam (SPF) provides exceptional insulation on flat and low-slope Phoenix commercial and residential roofs, but bare foam degrades rapidly under direct ultraviolet radiation. Without an intact protective topcoat, UV rays pulverize the top 1/4 inch of foam into yellow dust within two summers, and birds peck through soft spots to collect nesting material.

We mechanically scarify weathered, blistered, or bird-pecked foam down to dense, closed-cell substrate. Damaged voids are filled with high-density two-component polyurethane foam, primed, and coated with a 100% acrylic elastomeric protective topcoat applied at 30 dry mils thickness to restore watertight UV shielding.

Metal panels expand and contract substantially under Arizona’s 50-degree day-to-night temperature swings. On exposed-fastener roofs, this continuous movement backs out screws and crushes old neoprene washers until they split and leak. On standing seam roofs, failure occurs at transitions, sidewall counter-flashings, and W-valleys where thermal movement stresses sealant joints.

Our metal restoration scope replaces backed-out fasteners with oversized #14 self-drilling screws fitted with vulcanized EPDM washers. We re-crimp loose mechanical seams, replace deteriorated butyl tape, and fabricate custom 26-gauge galvanized steel flashings to ensure expansion joints move freely without breaking watertight seals.

Monsoon wind damage requires immediate tarping before perimeter leaks saturate interior drywall. Phoenix storms frequently dump over an inch of rain within thirty minutes, accompanied by 60 mph microburst winds. When tiles blow off or tree branches puncture decking, water immediately pours into attic insulation.

Our emergency dispatch team secures commercial-grade reinforced poly-tarps using wood batten furring strips screwed securely into framing rafters, never weighed down loosely with bricks or tires that can slide off. This guarantees complete dry-in security until permanent decking replacement and re-roofing can proceed under AZ ROC #353901.