Roof Coating
in Novato

## How Does Roof Coating Work? A Step-by-Step Process Roof coating is a liquid-applied membrane that bonds directly to your existing roof surface. We use it on flat or low-slope roofs common on Novato homes, especially those with built-up roofs, modified bitumen, or metal panels. The coating cures into a seamless, rubber-like layer that stops leaks and resists ponding water. Here is our exact process: **Step 1: Inspection and Cleaning** We start by walking your entire roof. We check for blisters, punctures, ponding water, and loose gravel. Then we power-wash the surface using a 3000 PSI washer with a biodegradable cleaner. This removes dirt, moss, and debris. We let the roof dry completely for 24 hours. **Step 2: Repairs and Priming** We patch any cracks or holes with a compatible repair compound. For metal roofs, we tighten fasteners and seal seams. We apply a primer coat to ensure adhesion. This step takes 4 to 6 hours on an average 2,000-square-foot roof. **Step 3: Base Coat Application** We spray or roll on the first coat of coating. We use a high-build acrylic or silicone formulation. We work in 4-foot-wide sections to maintain a wet edge. The base coat thickness is 20 to 30 mils wet film. We let it cure for 12 to 24 hours. **Step 4: Reinforcement Fabric (If Needed)** For roofs with existing cracks or joints, we embed a polyester fabric into the wet coating. This adds tensile strength and bridges movement. We only do this in problem areas, not the whole roof. **Step 5: Top Coat Application** We apply a second coat at 20 to 30 mils wet film. Total dry film thickness is 40 to 60 mils. We ensure even coverage around drains, vents, and parapet walls. We inspect each section with a wet film gauge. **Step 6: Final Inspection and Warranty** We walk the roof with you. We show you the seam coverage and drain details. We provide a 10-year material warranty and a 5-year workmanship warranty. We take photos of every step for your records. **Total timeframe:** 2 to 4 days for a typical residential flat roof. Drying time between coats depends on temperature and humidity. We schedule around Novato's coastal fog in the morning. ### What Is the Best Roof Coating for Novato Homes? For Novato's Mediterranean climate with wet winters and dry summers, we recommend silicone-based coatings. Silicone stands up to ponding water better than acrylic. It stays flexible from 20°F to 200°F. Acrylic is cheaper but fails under standing water. We use silicone on 80% of our roof coating jobs. ## How Much Does Roof Coating Cost in Novato? Roof coating costs $3.50 to $7.00 per square foot in Novato. A 2,000-square-foot flat roof runs $7,000 to $14,000. Price depends on roof condition, coating type, and number of coats. Silicone costs more than acrylic but lasts longer. **Cost breakdown:** - Acrylic coating: $3.50 to $5.00 per square foot - Silicone coating: $5.00 to $7.00 per square foot - Repairs before coating: $500 to $2,000 - Primer: included in coating price - Reinforcement fabric: $1.00 to $2.00 per square foot extra We provide a free, itemized estimate after inspection. No hidden fees. We accept cash, check, and credit cards. ## Is Roof Coating Better Than Roof Replacement? Roof coating costs 30% to 50% less than a full replacement. It also produces less waste. But it only works if your roof is structurally sound. If your roof has extensive rot, rust, or failed decking, replacement is the only option. We inspect your roof and give you an honest answer. **Signs you need coating instead of replacement:** - Roof is less than 15 years old - No leaks inside your home - Minimal ponding water that drains within 48 hours - No visible rot or rust on metal panels - Existing membrane is intact but worn **Signs you need replacement:** - Multiple active leaks - Sagging decking - Extensive blistering or alligatoring - Rust holes in metal panels - Roof is over 20 years old ## How Long Does Roof Coating Last? A properly applied roof coating lasts 10 to 15 years in Novato's climate. Silicone coatings last 15 years on average. Acrylic coatings last 8 to 10 years. Re-coating is possible after 10 years if the existing coating is still adhered. We recommend annual inspections to catch small issues early. ## What Roof Types Can Be Coated? We coat these roof types in Novato: - **Built-up roofs (BUR):** Gravel or smooth surfaces. We remove loose gravel and prime. - **Modified bitumen:** Smooth or granulated surfaces. We clean and prime. - **Metal roofs:** Standing seam, corrugated, or R-panel. We seal fasteners and seams. - **Single-ply membranes:** TPO, PVC, EPDM. We use compatible primers and coatings. - **Spray polyurethane foam (SPF):** We inspect for damage and apply coating. We do not coat asphalt shingle roofs. The granules prevent adhesion. For shingle roofs, we recommend replacement or repair. ## Does Roof Coating Stop Leaks? Yes. Roof coating seals small cracks, pinholes, and seam failures. It creates a monolithic membrane that water cannot penetrate. We have stopped leaks on dozens of Novato homes. However, coating cannot fix structural issues or large holes. We repair those first. ## What Is the Warranty on Roof Coating? We offer a 10-year material warranty from the manufacturer and a 5-year workmanship warranty from Northbay Roofing Co. The workmanship warranty covers peeling, blistering, or delamination caused by our application. We respond to warranty calls within 48 hours. We have been serving Novato since 2005. ## How Do I Prepare My Home for Roof Coating? You do not need to do anything. We move all loose items on the roof. We protect your landscaping with drop cloths. We clean up all debris daily. We ask you to keep windows closed during application due to odor. The odor dissipates in 24 hours. ## Why Choose Northbay Roofing Co for Roof Coating in Novato? We are a local Novato roofing contractor with 19 years of experience. We have coated over 500 roofs in Marin County. Our crew is trained in silicone and acrylic application. We use Gaco and Henry brand coatings. We stand behind our work. We do not subcontract. **What our customers say:** "They showed up on time, explained everything, and our roof has not leaked since. We saved $12,000 over a replacement." — Jane D., Novato ## Call Us for a Free Roof Coating Estimate If your roof is leaking or showing wear, call us at (555) 000-0000. We will inspect your roof, explain your options, and give you a firm price. No pressure. We have been Novato's trusted roofing contractor since 2005.