10 Best elastomeric roof coating for flat roof in Canada

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Last Updated - 2025/07/01

Best Choice

01
Rust-Oleum

Elastomeric Roof Coating, White, 5-Gallons
Main highlights

Rain resistant in 6 hours
84% initial reflectivity
74% Weathered reflectivity
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9.8

Exceptional

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Value for Money

02
Generic

Rexolastik Elastomeric Roof Coating - UV Reflective Sealant, Waterproof and Protect, DIY Application, Water-Based Acrylic Coating - White, 5 Gallon

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Main highlights

Versatile Application: Can be applied over metal, plastic, vinyl, rubber, wood, foam, fiberglass, aluminum, concrete, and modified bitumen.
Protective Barrier: This 100% water-based acrylic elastomeric coating forms a seamless barrier against rain, snow, hail, and airborne dirt.
Highly Elastic: Rexolastik expands and contracts up to 150%, maintaining flexibility in extreme temperatures.
Durable Protection: Extremely tough with added UV protection to withstand extreme environmental conditions. Designed to cure and resist cracking and peeling.
Application and Coverage: Apply by brush or roller and cures within 4 to 12 hours. 5 Gallon/18.9L covers 375 sqft to 500 sqft per coat, depending on surface.
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9.7

Exceptional

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03
Liquid Rubber

Liquid Rubber Color Waterproof Sealant - Elastomeric Roofing Coating for Flat or Slope Roofs & Foundations - DIY Paint & Leak Repair Membrane Compatible with Metal & Concrete - Clear, 1 Gallon

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Main highlights

WATERPROOF LIQUID RUBBER SEALANT FOR MULTIPLE SURFACES - Seal and protect metal roofs, flat roofs, low slope roofs, gutters, concrete repair, foundations, basement walls, planter boxes & more! Creates a flexible, seamless waterproof membrane that stops leaks and water damage
WATER-BASED FORMULA WITH NO HARSH CHEMICALS - Unlike competing concrete sealers or liquid waterproofing products, our water-based sealant contains no harmful odors. Perfect for indoor and outdoor use including basement foundation repair, making it the ideal sealant for your waterproofing needs. Product can be tacky after curing - not suitable for walking surfaces such as walkways, patios or decks
SUPERIOR LONG-LASTING PERFORMANCE - With 900% elongation, our roof sealant won't crack or peel like other alternatives. UV resistant and solar reflective, it lasts 4X longer without degrading. Works in temperatures from -40°F to 150°F for durable protection in all climates. With over 1 million gallons sold in our 20 years of experience
QUICK & EASY APPLICATION PROCESS - Apply like paint using a brush, roller or sprayer to clean, dry surfaces. No specialized equipment needed! Simply prep surface, detail work areas, 2-3 heavy coats for vertical & sloped surfaces like metal roofs or 3-4 heavy coats for flat roofs. Complete your waterproofing project in just 48 hours. Do not apply in wet conditions, when rain is forecast within 24 hours, or when temperatures fall below 50°F/10°C
PROFESSIONAL QUALITY ROOF SEALANT WATERPROOF COATING - This high-performance elastomeric roof coating is the perfect alternative to traditional roofing tar, roof shingles, or house foundation repair. One 5-gallon bucket covers 150-250 sq. ft. (depending on surface), creating a durable rubber cement-like barrier that's 5X more flexible
CREATE A BULLETPROOF WATERPROOFING SYSTEM - Bridge joints, seams, vents, gaps, protrusions with Liquid Rubber Seam Tape or Liquid Rubber Geo-Textile where possible movement may occur. For maximum protection, use Liquid Rubber Multi-Purpose Primer to promote adhesion and reduce peeling and flaking before applying this waterproof sealant. Complete your project with our full system of liquid rubber products
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9.6

Exceptional

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04
Liquid Rubber

Liquid Rubber RV Roof Sealant- Professional-Grade Solar Reflective Flexible Waterproof Membrane Coating for EPDM, TPO, Fiberglass & Aluminum Camper & Travel Trailers- 1 Gallon

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9.9 lasts a long time

9.5 Simple to clean

9.3 Simple to use
Main highlights

WEEKEND PROJECT SOLUTION: Achieve professional RV roof repair results in just one weekend with our easy 3-step system (Liquid Rubber RV Smart Cleaner, Liquid Rubber EPDM & TPO Primer, Liquid Rubber RV Roof Coating) - no special tools required! Simply apply with brush, roller or sprayer between 50°F-90°F(10°C-32.2°C) for a brilliant white, durable roof sealant waterproof membrane
WATER BASED FORMULA: Our, zero VOC, water-based technology safely seals RV roofs without harmful solvents - store sealed containers above freezing for future touch-ups. Perfect for RV roof repair, camper roof maintenance, and motorhome waterproofing, ensuring weather-resistant performance
VERSATILE MULT-SURFACE SYSTEM: Designed to work with EPDM, TPO, Fiberglass, and aluminum Roofs, skylights, RV vent covers, and camper awning components as part of a complete RV roof sealing system. This liquid rubber coating pairs with Liquid Rubber EPDM Primer for enhanced adhesion on EPDM and TPO surfaces., delivering durable, leak-proof coverage.
TRUSTED DURABILITY: We stand behind our RV roof sealant with 10 years of protection, ensuring long-lasting performance when applied as directed
MAXIMUM COVERAGE & PERFORMANCE: Rolls on like paint - Apply 1 gallon for every 50 sq ft to achieve your final recommended thickness. 1 - 5G pail will cover a 30 foot RV; be sure to use up all material - For complete protection, use with Liquid Rubber Lap Sealant, and Liquid Rubber Seam Tape on joints, vents, skylights and transitions where movement may occur, creating a watertight system compatible with all camper roofs
FLEXIBLE WATERPROOF MEMBRANE: Our professional-grade RV roof sealant creates a flexible seal, preventing leaks and water damage while maintaining flexibility in all temperatures - perfect for travel trailers, campers, pop up campers, rv’s, and for keeping your trailer’s interior dry all year long
COMPLETE ROOF PROTECTION SYSTEM: This elastomeric roof coating with heat reflective properties surpasses basic rubber roof repair kits by providing unmatched solar reflective performance that reduces heat absorption, lowering interior temperatures, saving costs on your heating bills and extending your RV roof's lifespan
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9.5

Excellent

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05
Dicor

Dicor Corporation Dicor RP-MRC-1 Elastomeric Coating 1 Gallon,White

8.0 worth the money

8.0 Simple to use
Main highlights

Package Weight: 8.97 pounds
Package Dimensions: 3.44 H x 13.65 L x 6.66 W (in inches)
Country of Origin: United States
Color Value: White
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9.3

Excellent

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06
Heng's

Heng's 16-47032 Roof Coating Elastomeric Qt
Main highlights

Used as a reflective and protective coating
Resists cracking and withstands impact
Non-polluting, non-toxic
Has outstanding exterior durability and UV resistance
Expands and contracts with the roof
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9.1

Excellent

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07
Liquid Rubber

Liquid Rubber Silicone Roof Coating - UV-Reflective, No Primer Needed, One-Coat Sealant for Flat, Sloped, Metal, Wood, Concrete, EPDM, and TPO Roofs, White, 1 Gallon

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Main highlights

SAFE AND EFFECTIVE: Our roof sealant is waterproof and made with high-quality water based ingredients that contain no solvents, ultra-low VOC's or harmful odors. Our roof sealant is safe and can be used indoors and outdoors with no special breathing apparatus.
PROTECTIVE MULTI-USE ROOF SEALANT: The Liquid Rubber silicone roof coating can be used as a flat roof sealer, on sloped roofs, planter boxes, sheds, wood, concrete, as a metal roof sealant and as an aluminum roof coating. No matter the material, Liquid Rubber has you covered.
LOCK IT IN WITH LIQUID RUBBER: Liquid Rubber manufactures a wide range of products for waterproofing, flat roofs, metal roofs, foundations, RV roofs, ponds, planter boxes, corrosion protection, concrete cleaning, and much more. Trust us to get your household job done.
HIGHLY FLEXIBLE AND DURABLE: The roof sealer final membrane has over 237% elongation preventing cracking from thermal expansion and adhesion failure. It is also UV Stable won’t degrade due to sun exposure
COVERAGE: Depending upon the roofing material you're working with, the Liquid Rubber roof silicone sealant should be applied approximately 1 gallon per 50 sq ft (or 4.65 sq/m). We recommend applying 1-2 layers.
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9.0

Excellent

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08
Liquid Rubber

Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 1 Gallon

25% Off

9.3 Simple to use

8.7 worth the money

8.7 lasts a long time
Main highlights

WATER-BASED ADVANCED FORMULA - Unlike harsh roof tar or solvent-based products, our water-based formula contains no VOCs or harmful odors, making it perfect for indoor and outdoor use. Doesn't damage foam insulation or sensitive materials. Perfect for waterproofing projects in confined spaces
USED BY PROFESSIONALS & DIYers ALIKE - With millions of gallons sold, Liquid Rubber is the go-to choice for contractors, property managers, and homeowners tackling projects from roof leak fixes to basement waterproofing. Our high-performance formula delivers professional results whether you're an experienced pro or a first-time DIYer
SUPERIOR FLEXIBILITY & DURABILITY - With over 950% elongation, this waterproof sealant maintains adhesion even with building movement and temperature changes. Our sealant is designed to resist cracking, peeling, and UV damage. Creates a flexible rubberized coating that delivers long-lasting protection
PROFESSIONAL COVERAGE SPECIFICATIONS - Brush, roll or spray on - For flat/low slope roofs & standing water surfaces: 1 gallon covers 15 sq ft (3-4 heavy coats to achieve 60-80 mil membrane). For vertical surfaces like foundations: 1 gallon covers 30 sq ft (2-3 heavy coats for 30 mil membrane). Ideal for both roof repair and preventative maintenance applications
PREMIUM ADHESION TECHNOLOGY - Superior adhesion to most building materials including metal, concrete, wood, and more. This hardware sealer can remain tacky after curing - NOT suitable for walking surfaces such as walkways, patios or decks. Use for waterproofing applications where foot traffic where foot traffic is minimal or not needed
INDUSTRIAL STRENGTH BITUMEN FORMULA - Create a seamless waterproof membrane on flat roofs, metal roofs, low slope roofs, foundations, gutters, concrete surfaces, planter boxes, and more. Our premium liquid rubber forms a durable barrier against water infiltration where other sealants fail. Superior alternative to traditional roof tar or patch products
ENGINEERED WATERPROOFING SYSTEM - For maximum protection, use with Liquid Rubber Seam Tape or Geo-Textile to bridge joints, seams, vents, skylights, and protrusions where movement may occur. Creates a comprehensive waterproofing system for long-lasting leak repair and prevention on your roof, basement, or foundation
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8.9

Very Good

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09
Rubbertop USA

Rubbertop Roof Coatings
Main highlights

Acrylic based, siliconized, elastomeric roof coating
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8.7

Very Good

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10
Generic

Maximum Stretch Elastomeric Rubber Acrylic Roof Coating & Sealant for Metal Built-up Roofing Concrete EPDM & Wood Concrete Sealer, 5 Gal., White (Pack of 01)
Main highlights

VERSATILE APPLICATIONS. Compatible with metal, built-up, and rolled roofing, this coating can be applied using a brush, roller, or sprayer. Each gallon provides approximately 100 sq. ft. of coverage per coat, with a minimum of two coats recommended.
EXPANSION-FRIENDLY FORMULA. This elastomeric coating is designed to adjust with surface movements, helping to maintain an even finish over time. Its formulation supports long-lasting application on a variety of roofing surfaces.
ELASTOMERIC ROOF COATING. Maximum-Stretch is an acrylic, rubberized roof coating designed for smooth application. The bright white finish enhances surface appearance and provides a protective barrier for roof maintenance.
DECADES OF COATING EXPERTISE. Formulating coatings for various roofing applications for years. Maximum-Stretch is part of a selection of elastomeric coatings designed for low-slope roof maintenance and general roof care.
BRIGHT WHITE REFLECTIVE FINISH. The white coating is designed to reflect light with up to 88% reflectivity, helping to maintain a balanced roof surface. Its bright finish supports a clean, well-maintained look.
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8.6

Very Good

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