Full-Tear-Off Residential Roof Replacement in Salt Lake County
A complete tear-off architectural shingle roof replacement in Salt Lake County typically costs $11,400 to $21,500 ($475–$685 per 100-sq-ft square) for a 24- to 32-square home. Urban Design & Remodel (Utah DOPL #10146123-5501, (801) 440-1952) includes old shingle disposal, OSB deck inspection, 6-foot eave ice-and-water shield, synthetic underlayment, 6-nail Class H high-wind fastening, steel flashings, and ridge ventilation.
After 20 to 25 years of Salt Lake Valley summers above 98°F and winters plunging into single digits, standard asphalt shingles lose their protective ceramic granules, dry out, and crack along fiberglass mat folds. Once shingle edges curl or granules fill your gutters, spot repairs become throwing good money at a failing envelope. At Urban Design & Remodel in West Jordan, we treat residential roof replacement as precision structural envelope engineering—stripping aged roofing down to bare sheathing, verifying deck integrity, sealing vulnerable eaves against snowmelt back-up, and installing integrated multi-layer shingle systems backed by manufacturer system warranties.
Step 1: Clean Tear-Off & Structural OSB / Plank Decking Inspection
True roof longevity starts underneath the underlayment. Our crew protects your landscaping, AC condenser, and driveway with breathable catch tarps and plywood shields before stripping every old shingle, felt paper, and rusted nail down to bare wood. On 1950s–1970s homes in Murray, Millcreek, and Sugar House, we check 1x8 board planks for knot-holes or gaps wider than 1/4 inch—installing new 7/16-inch or 15/32-inch APA-rated OSB sheathing where required by shingle manufacturers and IRC R905.2.1. On newer homes, we replace soft or delaminated OSB sheets around valleys and bath fans so every roofing nail achieves minimum 3/4-inch solid wood penetration.
- 100% removal of existing shingles, brittle tar paper, and corroded valley tin
- Re-fastening loose roof sheathing to rafters with 8d ring-shank nails at 6-inch edge spacing
- Transparent per-sheet OSB replacement pricing ($75–$95/sheet installed) with photo proof
Step 2: High-Temp Ice Barrier, Synthetic Underlayment & Steel Drip Edge
Before a single shingle goes on the roof, we build a secondary waterproof hull capable of shedding water even under wind-driven rain or heavy Wasatch snowpack. Along eaves, we install two 36-inch courses of ASTM D1970 self-sealing ice-and-water membrane so protection extends well past the 24-inch interior warm-wall threshold required by Utah IRC R905.1.2. Valleys, skylight curbs, and roof-to-wall intersections receive dedicated ice-barrier strips, followed by tear-resistant woven synthetic underlayment across the upper field. Every eave and rake edge is trimmed in 26-gauge baked-enamel steel drip edge properly lapped under underlayment at eaves and over underlayment along rakes.
- 72-inch (two-course) eave ice-and-water shield standard on 2-foot Utah overhangs
- Slip-resistant UV-stabilized synthetic underlayment with 10x tear strength of #15 felt
- 26-gauge W-valley metal and color-matched T-style steel edge metal on all perimeters
Step 3: 6-Nail High-Wind Fastening & Owens Corning / Malarkey Options
Roughly 80% of premature wind blow-offs along the Wasatch Front stem from pneumatic nail guns over-driving fasteners through the shingle mat or missing the reinforced nailing zone by half an inch. We calibrate compressor pressures throughout the day as morning cold gives way to afternoon warmth, placing six 1-1/4-inch 11-gauge hot-dipped galvanized roofing nails strictly inside the reinforced SureNail or Zone nailing strip. Homeowners choose between heavy dimensional architectural lines (Owens Corning TruDefinition Duration, GAF Timberline HDZ) and rubberized SBS Class 4 impact shingles (Malarkey Vista AR / Legacy, OC Duration Flex) curated to match brick, stone, and stucco palettes.
- Six-nail high-wind specification raising wind resistance from 110 mph to 130 mph
- Starter strip shingles with factory-applied thermal sealant along all eaves and rakes
- High-profile hip and ridge cap shingles engineered to resist cold-weather cracking
Step 4: Exhaust Ducting Corrections, Ridge Vents & Magnetic Sweep
During tear-off, we routinely discover bathroom exhaust fans dumping warm, humid shower air straight into cold attic spaces—causing black frost on north-facing OSB sheathing every January. As a licensed Utah General Contractor, we core dedicated roof penetrations and connect insulated flex ducts to dampered steel roof hoods so moisture exits cleanly outdoors. We cut continuous 1.5-inch slot openings along the peak (stopping 18 inches short of hips/gables) to install snow-baffled ridge vents, seal all soil stacks with UV-proof silicone boots, and finish with three passes of rolling rare-earth magnets across lawns, flowerbeds, and walkways.
- Proper exterior termination of bathroom and laundry exhaust fans through steel hoods
- External-baffle ridge vents engineered to block wind-driven snow infiltration
- Same-day dump-trailer haul-away—no dumpster sitting on your Salt Lake driveway for weeks
Full Roof Replacement Pricing by Home Roof Size in Salt Lake County
| Home / Roof Footprint | Approx. Roof Squares | Architectural Tear-Off | Class 4 SBS Impact System |
|---|---|---|---|
| Compact Rambler / Bungalow | 18 – 22 Squares | $8,900 – $12,100 | $10,600 – $14,500 |
| Standard Split-Level / 2-Story | 24 – 30 Squares | $11,600 – $16,800 | $13,900 – $19,800 |
| Large Rambler + 3-Car Garage | 32 – 42 Squares | $15,500 – $23,500 | $18,500 – $27,900 |
| Steep Custom Estate (9/12–12/12) | 45 – 60+ Squares | $23,800 – $36,500+ | $28,200 – $43,500+ |
Grant Helmer's Utah Field Pro-Tip (DOPL #10146123-5501)
When comparing Salt Lake roof replacement bids, check whether the contractor quotes raw home square footage or waste-adjusted roof squares. A 2,000-sq-ft main-floor rambler with a 2-car garage, 2-foot overhangs, and a 6/12 hip roof easily measures 30 to 33 roof squares once starter, hip, and valley waste are calculated.
Frequently Asked Questions: Roof Replacement Salt Lake County Utah
What time of year can you replace an asphalt shingle roof in Salt Lake County?
We install roof replacements from March through early December whenever daytime temperatures reach 40°F+ and decks are dry. During cooler spring and late-autumn weeks, we hand-tab shingle edges with ASTM D4586 asphalt roof cement so wind uplift cannot lift tabs before solar warmth activates the factory thermal sealant strip.
How do I know if my OSB roof decking needs full replacement?
Most 1985-and-newer Utah homes only need 1 to 4 sheets of OSB replaced around old leaks, valleys, or unvented bath fans. Full re-decking is mainly needed on pre-1975 homes built with spaced 1x6 or 1x8 skip-sheathing planks originally designed for wood cedar shakes.
Are Class 4 impact-resistant shingles worth the extra 12%–18% cost in Utah?
Yes, particularly on exposed benches in Draper, Sandy, Herriman, and West Jordan. Rubberized SBS Class 4 shingles resist cracking during summer hailstorms, hold granules 25% longer under high-altitude UV, and qualify many Utah homeowners for annual property insurance premium discounts.
Will replacing my roof fix an overheated upstairs bedroom?
Upgrading from choked box vents to balanced soffit-to-ridge ventilation during your reroof dramatically lowers peak summer attic heat, reducing radiant heat transfer through upstairs ceilings and extending shingle life—especially when paired with proper attic floor air-sealing and R-49 insulation.
Related Utah Roofing, Bathroom & Remodeling Resources
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