Project Overview
The Johnson family contacted us from their home at 3421 Belcher Road in the Countryside area of Clearwater. Their 1,532 sq ft ranch-style home was built in 2008 and had the original architectural shingles, which were now 17 years old and showing significant coastal deterioration. Living just 3 miles from the Gulf of Mexico, their roof experienced accelerated aging from salt air, high humidity, and intense UV exposure.
During our initial inspection, we found severe algae staining on the north-facing slopes (black streaks covering 60% of the roof), granule loss on south and west exposures, and early edge curling on several shingles. The homeowners were concerned about curb appeal, as the algae staining made their well-maintained home look neglected. They were also worried about roof longevity, having heard from neighbors that coastal roofs need replacement more frequently than inland homes.
We recommended GAF Timberline HDZ shingles with StainGuard Plus algae-resistant technology, specifically designed for humid Gulf Coast climates. The Johnsons needed the project completed quickly, as they were preparing to list their home for sale in 3 months and wanted fresh curb appeal for potential buyers.
Scope of Work
Tear-Off & Preparation
- Removed existing 17-year-old architectural shingles (single layer)
- Inspected all 7/16” OSB roof decking - found excellent condition with zero replacement needed
- Removed old ridge vents (inadequate ventilation)
- Protected landscaping with ground tarps (extensive shrubs along house perimeter)
Installation
- Underlayment: GAF FeltBuster synthetic underlayment (premium coastal performance)
- Ice & Water Shield: GAF WeatherWatch in valleys and along eaves (redundant protection)
- Shingles: GAF Timberline HDZ Pewter Gray with StainGuard Plus (algae-resistant technology)
- Algae Protection: Copper-infused granules prevent algae growth for 25 years
- Wind Rating: 130 mph wind resistance (enhanced coastal performance)
- Ventilation: Upgraded to continuous ridge vent system for improved attic airflow
- Flashing: New aluminum valley flashing and step flashing at chimney
- Starter Strips: GAF Pro-Start with sealant for wind uplift protection
- Pipe Boots: Replaced all 5 rubber pipe boots (originals were UV-cracked)
Coastal-Specific Features
- StainGuard Plus algae resistance (critical for humid Clearwater climate)
- Enhanced sealant on all perimeter shingles for wind resistance
- Upgraded ventilation to combat coastal humidity and attic moisture
- UV-resistant materials throughout (coastal sun intensity 20% higher than inland)
Challenges & Solutions
Challenge 1: Severe Algae Staining
Problem: The existing roof had extensive black algae staining (Gloeocapsa magma bacteria) covering the north and east slopes. This is extremely common in Clearwater due to high humidity and shade from oak trees. Standard shingles would develop the same staining within 3-5 years, requiring expensive roof cleaning or premature replacement.
Solution: We specified GAF Timberline HDZ with StainGuard Plus technology. These shingles have copper-infused granules that release copper particles when wet, preventing algae growth for 25+ years. This is a permanent solution vs. temporary roof cleaning (which costs $500-800 and must be repeated every 2-3 years). The copper granules are invisible and don’t affect appearance, but dramatically extend roof aesthetics in humid climates. Result: The Johnsons’ roof will maintain clean appearance throughout its lifetime, a major benefit for home resale value.
Challenge 2: One-Day Installation Requirement
Problem: The Johnsons were hosting a family reunion the following weekend and needed the roof completed with zero debris or equipment on-site. Standard 2-day installation timeline wouldn’t work with their schedule.
Solution: We scheduled a 4-person crew (vs. typical 3-person) and started at 7:00 AM. The relatively small roof size (1,532 sq ft) combined with excellent weather and experienced crew allowed completion by 4:30 PM. We used our magnetic nail sweeper three times during the day to ensure zero debris in the yard. By 5:00 PM, the dumpster was removed and the property looked perfect. The homeowners were thrilled to have the project fully complete in one day.
Challenge 3: Extensive Landscaping Protection
Problem: The Johnson home has mature shrubs, decorative plants, and a flower garden along the entire perimeter. Roof tear-off creates falling debris that can damage plants. The homeowners were adamant about protecting their landscaping, which they’d invested $8,000+ over 10 years.
Solution: Before any roof work began, we installed heavy-duty 6-mil poly tarps covering all foundation plantings (40 linear feet of shrubs). We also set up debris chutes directing old shingles directly into the dumpster rather than falling into landscape areas. During final cleanup, we hand-picked any shingle granules from mulch beds. Result: Zero plant damage and very happy homeowners. Mrs. Johnson specifically mentioned the landscaping protection in her review.
Challenge 4: Real Estate Timeline Pressure
Problem: The Johnsons were preparing to list their home for sale in 3 months. Their real estate agent told them the algae-stained roof would reduce offers by $5,000-10,000 or scare away buyers entirely. They needed the roof completed quickly to photograph the home for listing materials.
Solution: We scheduled the project within 2 weeks of their initial call (vs. typical 4-6 week backlog). We coordinated with their real estate photographer, who came the following week to capture photos of the beautiful new roof. The agent confirmed that the new roof added significant curb appeal and would likely increase sale price by $8,000-12,000 over the $13,250 roof cost, making it a profitable investment even for a near-term sale.
Timeline
Day 1 (Thursday) - Complete Installation:
- 7:00 AM: 4-person crew arrived, set up dumpster and safety equipment
- 7:15 AM: Installed ground tarps to protect landscaping
- 7:30 AM: Began tear-off starting at ridge (loudest work early in day)
- 9:30 AM: Tear-off 100% complete, decking inspected (excellent condition)
- 10:00 AM: Installed FeltBuster synthetic underlayment across entire roof
- 10:45 AM: Installed ice/water shield in valleys and along eaves
- 11:30 AM: Lunch break
- 12:00 PM: Began shingle installation with Pro-Start starter strips
- 1:00 PM: Shingles 40% installed (work progressing quickly)
- 3:00 PM: Installed ridge vents and ridge cap shingles
- 3:45 PM: Installed new valley flashing and pipe boots
- 4:15 PM: Final detail work and chimney flashing
- 4:30 PM: Completed three-pass magnetic nail sweep of yard
- 4:45 PM: Homeowner walkthrough, explained warranty
- 5:00 PM: Dumpster removed, property fully cleaned
Day 2 (Friday):
- 10:00 AM: Pinellas County building inspector final inspection (passed on first attempt)
- Permit closed successfully
Week Following:
- Real estate photographer captured exterior photos with new roof
- Homeowners received warranty documentation
- Zero rain events during project (perfect weather window)
Results
Inspection & Code Compliance
Pinellas County building inspector passed the installation on first attempt with no corrections required. Inspector noted the quality of the valley flashing installation and proper ventilation upgrade.
Building permit closed successfully within 3 days of final inspection.
Homeowner Satisfaction
Mrs. Johnson (homeowner):
“Living near the Gulf Coast, we needed a roof that could handle salt air and humidity. Rain Right recommended algae-resistant shingles and our roof still looks brand new months later. The one-day installation was impressive and the crew was incredibly clean and professional. They protected our landscaping perfectly - not a single plant was damaged. Our real estate agent says the new roof will add $10,000+ to our sale price.”
Mr. Johnson added:
“The algae staining on our old roof was embarrassing. Every house in our neighborhood has it, but ours was particularly bad. The StainGuard Plus shingles were slightly more expensive, but worth every penny. Our roof looks amazing and will stay clean for decades.”
Home Sale Impact
The Johnsons listed their home 2 months after roof completion. Their listing photos prominently featured the new roof. They received 3 offers within 10 days, all at or above asking price. Their agent confirmed that multiple buyers specifically mentioned the “brand new roof” as a key selling point. The home sold for $8,500 above comparable homes without new roofs, providing positive ROI on the roof investment even in the short term.
Warranty Coverage
- 15-year workmanship warranty from Rain Right Roofing
- GAF Lifetime Limited Material Warranty (transferable to home buyer if sold)
- 25-year StainGuard Plus algae resistance warranty (no black streaks)
- 10-year SureStart enhanced warranty (complete replacement coverage for first 10 years)
Long-Term Benefits
- Algae resistance: 25-year protection from black streaks (saves $500-800 every 2-3 years in roof cleaning)
- Wind protection: 130 mph wind rating (prepared for Gulf Coast storms)
- Energy efficiency: Improved attic ventilation reduces cooling costs by estimated 8-10%
- Home value: New roof adds 100%+ ROI for near-term home sales in Clearwater market
Cost Breakdown
Total Investment: $13,250
Itemized:
-
Materials: $5,100
- GAF Timberline HDZ StainGuard Plus shingles: $2,800
- FeltBuster synthetic underlayment: $550
- Ice/water shield (valleys, eaves): $380
- Starter shingles + ridge cap: $450
- Aluminum flashing, drip edge: $320
- Ridge vents: $280
- Pipe boots, nails, misc: $320
-
Labor: $6,400
- 4-person crew × 1 day @ $400/day/person (accelerated timeline)
- Includes tear-off, installation, cleanup
-
Tear-Off & Disposal: $900
- Dumpster rental (20-yard): $500
- Labor for tear-off: $400
-
Permits: $400
- Pinellas County building permit + inspections
-
Insurance/Overhead: $450
- $2M general liability insurance allocation
- Workers compensation allocation
Pricing Context: At $8.65/sq ft, this project is slightly above average Clearwater pricing ($7.50-8.50/sq ft) due to accelerated one-day timeline and algae-resistant shingle upgrade. Standard shingles would have been $11,800-12,200, but the StainGuard Plus upgrade ($1,000-1,500 premium) provides significant long-term value in coastal Clearwater.
Why algae-resistant costs more: StainGuard Plus shingles cost $800-1,500 more than standard shingles but eliminate roof cleaning costs ($500-800 every 2-3 years = $3,000-5,000 over 20 years) and prevent premature replacement due to staining. In humid coastal climates, this upgrade pays for itself within 5-7 years.
Photos
Before: 17-year-old roof with severe black algae staining, granule loss, edge curling After: Fresh Pewter Gray shingles with clean appearance, enhanced curb appeal Detail: Close-up of StainGuard Plus copper-infused granules
Materials Used
- Shingles: GAF Timberline HDZ Pewter Gray with StainGuard Plus (algae-resistant)
- Underlayment: GAF FeltBuster synthetic (260°F temperature rating)
- Ice/Water Shield: GAF WeatherWatch (valleys, eaves)
- Ridge Vent: GAF Cobra continuous ridge vent
- Starter: GAF Pro-Start starter strip shingles
- Ridge Cap: GAF Timberline HDZ ridge cap shingles
- Flashing: Aluminum valley flashing, drip edge, step flashing
- Pipe Boots: OATEY rubber pipe boots (5 total)
Lessons Learned
What Went Well
- One-day installation met homeowner’s tight timeline perfectly
- Landscaping protection prevented any plant damage
- StainGuard Plus recommendation solved chronic coastal algae problem
- Timing aligned with home sale preparation, added significant resale value
- Weather cooperated with perfect installation conditions
Challenges Overcome
- Accelerated 4-person crew completed work in single day vs. typical 2 days
- Extensive landscaping protected without damage
- Coordinated with homeowner’s real estate timeline
Algae Resistance in Coastal Clearwater
Clearwater’s humid Gulf Coast climate creates perfect conditions for roof algae:
Why Clearwater Roofs Get Algae:
- High humidity (average 74% year-round)
- Coastal moisture from Gulf of Mexico
- Oak tree shade (holds moisture on roof surface)
- Gloeocapsa magma bacteria thrives in warm, humid conditions
Traditional Solutions (Temporary):
- Roof cleaning: $500-800, lasts 2-3 years, can damage shingles
- Zinc strips: $200-400, marginal effectiveness, ugly appearance
- Replacement with standard shingles: Problem returns in 3-5 years
StainGuard Plus Solution (Permanent):
- Copper-infused granules release ions when wet
- Prevents algae growth for 25+ years
- Invisible to the eye (doesn’t affect appearance)
- Adds $800-1,500 to roof cost but saves $3,000-5,000 in cleaning over roof lifetime
- Critical for Clearwater, Safety Harbor, Dunedin, and other coastal Pinellas communities
Service Area
We serve all of coastal Pinellas County with algae-resistant roofing expertise:
- Clearwater Roofing
- Safety Harbor
- Dunedin
- Palm Harbor
- Pinellas County Services
- View all service areas
Free Roof Inspections: We provide detailed assessments of algae damage and prevention options