10 Best Roof Sealants in the Philippines 2025 | Buildrite, Primero, and More
Keeping your roof protected from leaks is essential in the Philippines, where strong sunlight, sudden rain, and high humidity can easily damage roofing materials. Roof sealants add a protective layer that prevents water from entering small cracks or gaps, helping you avoid costly repairs and extending your roof’s lifespan.
With many types available online, it can be hard to know which one suits your roof. Some work better on metal sheets, while others adhere more effectively to concrete or asphalt. To make choosing easier, we prepared a simple buying guide along with recommended roof sealants you can conveniently buy on Lazada and Shopee.
Quick List - Top Roof Sealants
Primero
Waterproofing Sealant for Hairline Cracks and Nail Holes
Our recommendation articles are carefully researched and crafted by the mybest Philippines team of writers and editors. To stay true to our company’s mission and vision to help users’ selection process easier, we also collaborate with experts from various fields to ensure that our content stays factual and useful.
Table of Contents
- Why You Can Trust Us
- How Do Roof Sealants Differ From Regular Waterproofing Paints?
- Frequently Asked Questions
- Can You Apply Roof Sealant During Rainy or Humid Weather?
- Do You Need to Remove the Old Sealant Before Reapplying a New One?
- How Often Should You Reseal Your Roof for Best Results?
- Can Roof Sealants Help Reduce Heat Inside the House?
- Strengthen Your Home’s Protection With These Maintenance Essentials
- How We Chose and Ranked Our Product Recommendations
Why You Can Trust Us
Every mybest article is crafted with hours of in-depth research and interviews with experts. Each month, we are continually expanding our database of products based on our research. By emphasizing user insight and reliable information, we deliver trustworthy content to readers.
How Do Roof Sealants Differ From Regular Waterproofing Paints?
Roof sealants and waterproofing paints both protect surfaces from moisture, but they serve different purposes. Roof sealants are thicker, more elastic, and specifically made to seal gaps, cracks, screw holes, and seams—common areas where leaks begin. They form a flexible layer that moves with your roof as it expands and contracts under heat, making them ideal for fixing active leak points.
Waterproofing paints, on the other hand, mainly create a water-resistant coating on the surface. They help reduce moisture absorption but cannot fill or repair cracks and damaged areas. This makes them good for prevention, but if your roof already has leaks, cracks, or rusty screw holes, using a proper roof sealant is the more effective solution.
How to Choose Roof Sealants - Buying Guide
Match the Sealant Type to Your Roofing Material
Different roofing materials work best with specific types of sealants. Check your roof material first, then choose a sealant designed to adhere well to it for longer-lasting protection and fewer maintenance issues.
For Metal Roofs: Choose Acrylic or Silicone Sealants
For metal roofs commonly used in Filipino homes, acrylic and silicone sealants offer the best adhesion and long-lasting protection. Acrylic sealants are affordable, easy to apply, and bond well to galvanized iron sheets, making them ideal for general maintenance.
Silicone sealants, meanwhile, offer greater flexibility and superior resistance to heat and UV exposure, making them ideal for roofs that receive direct sunlight throughout the day. Choosing either of these ensures better sealing around screw holes, seams, and overlaps, helping prevent leaks more effectively.
For Concrete Roofs: Go for Elastomeric or Polyurethane Sealants
Elastomeric and polyurethane sealants are ideal for concrete roofs because they adhere strongly to porous surfaces and can withstand slight movements without cracking. Elastomeric sealants create a thick, flexible layer that expands and contracts with heat changes, making them ideal for sealing hairline cracks and preventing water from seeping in.
Polyurethane sealants, on the other hand, offer excellent durability and water resistance, making them suitable for heavier leaks or uneven concrete areas. Both options provide reliable, long-lasting protection for flat or slab-type concrete roofs, which are common in the Philippines.
For Asphalt Roofs: Use Rubberized or Asphalt-Based Sealants
Rubberized and asphalt-based sealants are the most compatible options for asphalt roofs because they bond well with the material’s natural texture and composition. Rubberized sealants add flexibility, allowing them to stretch with temperature changes and prevent cracks from widening.
Asphalt-based sealants then blend seamlessly with existing asphalt surfaces, offering strong waterproofing to seal gaps, joints, and worn-out sections. Both types provide durable protection that helps maintain the roof’s integrity, especially during heavy rains and extreme heat.
Prioritize Weather Resistance for Philippine Conditions
Pick UV- and Heat-Resistant Formulas for Hot, Sunny Areas
UV- and heat-resistant formulas are designed to withstand constant sun exposure without cracking, peeling, or losing their flexibility. They maintain a strong seal even when the roof expands during peak heat, making them ideal for corrugated metal sheets and other roofing materials that heat up quickly. With better resistance to UV damage, you get more reliable leak protection and fewer reapplications over time.
Opt for Waterproof Sealants That Can Withstand Heavy Rain
Look for formulas that create a strong, water-tight layer, allowing them to withstand standing water, continuous moisture, and heavy rain without breaking down. These sealants help prevent leaks from returning and offer reliable protection for roofs that tend to pool water or have exposed seams and screw holes. Choosing a waterproof option ensures better durability throughout the rainy season.
Check Application Method and Ease of Use
Brush, Roller, or Ready-to-Use Types Are Best for DIY Repairs
For quick DIY roof repairs, a brush, roller, or ready-to-use sealant is the easiest option to work with. These types spread smoothly and don’t require special tools or mixing, making them ideal for sealing small cracks, joints, and screw holes at home. Brush and roller applications provide better control and coverage, while ready-to-use tubs or tubes allow you to apply the product directly from the container. They’re beginner-friendly choices that help you fix minor leaks without hiring a professional.
Sprayable or Cartridge Sealants for Large Renovation Projects
Sprayable and cartridge-type sealants are more efficient for bigger roof repair or renovation projects. They allow faster, more even application across wide surfaces or long seams, making them ideal when you need to cover large areas or multiple leak points. Cartridge sealants also work well with caulking guns, giving you precise control for filling deep cracks and joints. If you’re working on a full roof restoration or professional-grade repair, these options help you save time while ensuring a durable, consistent seal.
Choose a Flexible Sealant That Won’t Crack or Peel Over Time
A flexible sealant is crucial for roofs in the Philippines because temperatures fluctuate rapidly throughout the day, causing roofing materials to expand and contract. Sealants that stay elastic can move with the roof without cracking, peeling, or lifting, which helps maintain a tight barrier against leaks. This is especially useful for metal roofs and areas around screw holes or seams where movement is more noticeable.
Select Low-VOC, Non-Toxic Sealants for Safer Use
Low-VOC, non-toxic sealants are a safer choice for homes, especially if you’re working in enclosed spaces or doing DIY repairs without professional gear. These formulas release fewer harmful fumes, making them gentler on indoor air quality and safer for households with kids, pets, or sensitive individuals. Despite being safer to use, they still provide strong adhesion and reliable leak protection. Choosing a low-VOC option helps you seal your roof effectively while keeping your environment healthier.
10 Best Roof Sealants to Buy Online
Products | Image | Click to purchase | Key features | Details | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Type | Best For | Weather Resistance | Application Method | Flexible | Low-VOC, Non-Toxic | Net Weight | |||||
1 | Buildrite Rubber Stop | | Silicone Sealant That Stays Rubber-Flexible and Weatherproof | Silicone Sealant | Metal Roofs, Joints and Nail Heads on Galvanized Roofs | Waterproof, Heat-Resistant, Weatherproof | Cartridge | 300 g | |||
2 | Primero Multi Seal Elastomeric Waterproofing | | Waterproofing Sealant for Hairline Cracks and Nail Holes | Elastomeric Sealant | Concrete Roofs | UV-Resistant, Waterproof | Brush, Roller | 600 g | |||
3 | Mondo Liquid Seal | | Seals Roof Leaks and Gaps With a Water-Based Elastic Sealant | Elastomeric Sealant | Concrete Roofs | UV-Resistant, Waterproof | Brush, Trowel, Putty Knife | 1000 g | |||
4 | Pioneer Mighty Seal Neutral Cure | | Non-Corrosive Roof Sealant That Won’t Damage Metal Surfaces | Silicone Sealant | Metal Roofs | Waterproof, Weatherproof | Cartridge | 280 g | |||
5 | Buildrite Blockout Sapal RTU | | PU-Enhanced Acrylic Roof Sealant That Withstands Extreme Weather | PU-Acrylic Sealant | Metal Roofs, Concrete Roofs | UV-Resistant, Waterproof, Weatherproof | Brush, Roller | 1000 g | |||
6 | Bostik Super Vulcaseal Jr. | | Trusted Elastomeric Sealant for Roof Leaks and Repairs | Elastomeric Sealant | Metal Roofs, Concrete Roofs | Waterproof, Heat-Resistant | Trowel, Putty Knife, Spatula | 75 g | |||
7 | Shelby Rubberized Liquid Asphalt | | Rubberized Roof Sealer That Withstands Heat, Cold, and Cracking | Rubberized Asphalt-Based Sealant | Asphalt Roofs | Waterproof, Heat-Resistant | Roller, Brush | 3785 g | |||
8 | SureSeal Elastomeric Sealant | | Easy-to-Apply Roof Sealant Quick, Leak-Free Repairs | Elastomeric Sealant | Metal Roofs, Concrete Roofs | Heat-Resistant, Waterproof | Brush, Roller | 82.5 g | |||
9 | Pioneer ElastoSeal | | Toluene-Free Roof Sealant for Safe and Reliable Waterproofing | Elastomeric Sealant | Metal Roofs, Concrete Roofs | UV-Resistant, Waterproof, Weatherproof | Trowel, Spatula | 1000 g | |||
10 | Sista D100 Plus Acrylic Waterproofer & Sealer | | Seals Roof Leaks With a Water-Based Acrylic Coating | Acrylic Sealant | Metal Roofs | UV-Resistant, Waterproof, Weatherproof | Brush, Roller | 1000 g | |||
Silicone Sealant That Stays Rubber-Flexible and Weatherproof
- Prevents staining and corrosion on exterior materials with its one-part, neutral-cure silicone
- Stays rubber-flexible after curing to absorb movement without cracking or losing its seal
- Adheres well without primer to glass, tiles, metals, painted wood, and some plastics
- Seals joints and nail heads on galvanized roofs for lasting weatherproof protection
Reviews mention:
Users say it’s one of the best silicones for roofing and gutters, praising its strong adhesion and weatherproof performance. Some note it’s best applied in well-ventilated spaces and needs careful tooling for a neat finish, but overall find it dependable and long-lasting.
| Type | Silicone Sealant |
|---|---|
| Best For | Metal Roofs, Joints and Nail Heads on Galvanized Roofs |
| Weather Resistance | Waterproof, Heat-Resistant, Weatherproof |
| Application Method | Cartridge |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 300 g |
Waterproofing Sealant for Hairline Cracks and Nail Holes
- Seals hairline cracks and nail holes, creating a durable waterproof layer on roofs, gutters, and downspouts
- Flexes with roof movement without cracking or peeling for long-lasting protection
- Simplifies application with its ready-to-use, no-mixing formula that saves prep time
- Provides UV-resistant and weather-resistant protection to prevent fading and damage
Reviews mention:
Buyers find it easy to apply and quick-drying, making it great for sealing roof holes. Some note that surfaces should be clean and dry for best adhesion and recommend applying two thin coats for better coverage. Others highlight its lasting quality, still intact after a year of use.
| Type | Elastomeric Sealant |
|---|---|
| Best For | Concrete Roofs |
| Weather Resistance | UV-Resistant, Waterproof |
| Application Method | Brush, Roller |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 600 g |
Seals Roof Leaks and Gaps With a Water-Based Elastic Sealant
- Seals gaps, nail holes, and joints on roofs to stop leaks and moisture from getting in
- Forms a strong, durable, and flexible bond for a long-lasting air- and water-resistant barrier
- Stays non-corrosive on metal surfaces to prevent damage and ensure lasting protection
- Offers a water-based, non-toxic, and paintable finish that’s safe and environmentally friendly
Reviews mention:
Customers mention it effectively stops roof and gutter leaks, giving a more durable finish than regular sealants. Some point out its thick consistency and suggest using proper tools for the best results. Others add that on a clean, dry surface, it bonds well and stays waterproof.
| Type | Elastomeric Sealant |
|---|---|
| Best For | Concrete Roofs |
| Weather Resistance | UV-Resistant, Waterproof |
| Application Method | Brush, Trowel, Putty Knife |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 1000 g |
Non-Corrosive Roof Sealant That Won’t Damage Metal Surfaces
- Stays non-corrosive on metal roofs to prevent surface damage and rust formation
- Comes as a one-part silicone in a cartridge for easy and precise application
- Provides strong, long-lasting adhesion ideal for roof repairs and sealing tasks
- Remains flexible to move with surfaces and prevent cracking or peeling over time
Reviews mention:
Users highlight how well it seals and how it stays intact even after heavy rain and intense heat. Some mention a strong initial odor during application, though it fades once the sealant fully sets. Many also appreciate its easy-to-use cartridge and quick curing time.
| Type | Silicone Sealant |
|---|---|
| Best For | Metal Roofs |
| Weather Resistance | Waterproof, Weatherproof |
| Application Method | Cartridge |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 280 g |
PU-Enhanced Acrylic Roof Sealant That Withstands Extreme Weather
- Combines water-based acrylic with polyurethane for a flexible yet durable waterproof seal
- Cures into an elastic film that stays intact through roof movement and changing weather
- Seals joints, nail heads, gutters, downspouts, and the entire roof surface to stop leaks
- Offers a solvent-free, easy-to-apply coating safe for both users and the environment
Reviews mention:
Buyers say this sealant provides reliable protection for roofs and gutters, ensuring a leak-free seal even after heavy rain. Some note that drying time varies depending on the weather, but many also appreciate that it dries evenly without stickiness, with overall results remaining durable and effective.
| Type | PU-Acrylic Sealant |
|---|---|
| Best For | Metal Roofs, Concrete Roofs |
| Weather Resistance | UV-Resistant, Waterproof, Weatherproof |
| Application Method | Brush, Roller |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 1000 g |
Trusted Elastomeric Sealant for Roof Leaks and Repairs
- Proves to be a popular one-component elastomeric sealant for roofing and home repairs
- Applies easily to metal, concrete, and other common materials
- Dries quickly and forms a firm, weather-tight seal to keep out leaks early on
- Seals leaks, cracks, and gaps on roofs, gutters, and downspouts effectively
Reviews mention:
Users praise this sealant’s reliability for roof and gutter repairs, noting that it holds up well even during heavy rain. Many like its thick yet manageable texture that spreads evenly without making a mess. A few suggest storing it properly after opening to keep its consistency for future use.
| Type | Elastomeric Sealant |
|---|---|
| Best For | Metal Roofs, Concrete Roofs |
| Weather Resistance | Waterproof, Heat-Resistant |
| Application Method | Trowel, Putty Knife, Spatula |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 75 g |
Rubberized Roof Sealer That Withstands Heat, Cold, and Cracking
- Forms a seamless, rubberized coating that seals and protects roof surfaces
- Prevents leaks and moisture buildup for long-term waterproofing
- Spreads easily for efficient application on large or uneven roof areas
- Stays flexible and crack-resistant under extreme heat or cold
Reviews mention:
Customers praise its thick consistency and dependable waterproofing on old roofs and gutters. Some mention a strong initial odor, but it fades once fully cured. Many also appreciate that it dries evenly and adheres well without needing multiple coats.
| Type | Rubberized Asphalt-Based Sealant |
|---|---|
| Best For | Asphalt Roofs |
| Weather Resistance | Waterproof, Heat-Resistant |
| Application Method | Roller, Brush |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 3785 g |
Easy-to-Apply Roof Sealant Quick, Leak-Free Repairs
- Applies easily straight from the container, ideal for quick roof repairs and sealing jobs
- Bonds strongly to roofs, gutters, and tubes for reliable waterproofing
- Stays elastic after curing to handle expansion and contraction without cracking
- Forms a durable, rubber-like seal that resists leaks and maintains adhesion over time
Reviews mention:
Buyers frequently highlight its strong adhesion and lasting performance on roofs and gutters, even in tropical weather. Some mention that curing can take longer in humid conditions, but once set, it stays flexible and dependable for long-term use.
| Type | Elastomeric Sealant |
|---|---|
| Best For | Metal Roofs, Concrete Roofs |
| Weather Resistance | Heat-Resistant, Waterproof |
| Application Method | Brush, Roller |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 82.5 g |
Toluene-Free Roof Sealant for Safe and Reliable Waterproofing
- Uses a toluene-free formulation, reducing harmful fumes during application
- Provides strong, long-lasting waterproofing even under harsh weather conditions
- Stays flexible to prevent cracking and maintain adhesion as surfaces move
- Applies easily with a brush or spatula for smooth, even coverage on roofs and gutters
Reviews mention:
Users appreciate its strong adhesion and how it effectively seals leaks even with just one coat. Some mention that drying can take a bit longer, but once cured, the seal remains solid and reliable even during heavy rain.
| Type | Elastomeric Sealant |
|---|---|
| Best For | Metal Roofs, Concrete Roofs |
| Weather Resistance | UV-Resistant, Waterproof, Weatherproof |
| Application Method | Trowel, Spatula |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 1000 g |
Seals Roof Leaks With a Water-Based Acrylic Coating
Features and benefits:
- Seals cracks up to five mm with high flexibility and tensile strength
- Spreads smoothly with a brush or roller for quick roof repairs
- Bonds firmly to concrete, wood, and metal for lasting waterproofing
- Resists UV and harsh weather, ideal for tropical conditions
Reviews mention:
Reviewers mention that this sealant provides solid coverage even on older roofs and walls. Many appreciate how quickly it dries and how smooth the finish looks. Some note that applying two coats gives better sealing, especially on surfaces with small cracks.
| Type | Acrylic Sealant |
|---|---|
| Best For | Metal Roofs |
| Weather Resistance | UV-Resistant, Waterproof, Weatherproof |
| Application Method | Brush, Roller |
| Flexible | |
| Low-VOC, Non-Toxic | |
| Net Weight | 1000 g |
Frequently Asked Questions
Can You Apply Roof Sealant During Rainy or Humid Weather?
Do You Need to Remove the Old Sealant Before Reapplying a New One?
How Often Should You Reseal Your Roof for Best Results?
Can Roof Sealants Help Reduce Heat Inside the House?
Strengthen Your Home’s Protection With These Maintenance Essentials
Pair your roof sealant with other helpful tools and materials to keep your home well-maintained year-round. Whether you’re repairing leaks, refreshing your interiors, or working on small carpentry projects, these recommended guides will help you choose reliable products available on Lazada and Shopee—making your DIY tasks easier and more efficient.
How We Chose and Ranked Our Product Recommendations
Our buying guide was carefully researched and crafted by the mybest team of writers and editors, in collaboration with the expert featured in this article. We used the buying guide as a basis for choosing and ranking the product recommendations, and we looked at reviews and ratings from different E-commerce sites like Lazada, Shopee, and more.
Top 5 Roof Sealants
No. 1: Buildrite｜Rubber Stop
No. 2: Primero｜Multi Seal Elastomeric Waterproofing
No. 3: Mondo｜Liquid Seal
No. 4: Pioneer｜Mighty Seal Neutral Cure
No. 5: Buildrite｜Blockout Sapal RTU
View Full RankingThe descriptions of each product are referenced from content available on manufacturer, brand, and e-commerce sites.
Search by category
Beauty
Body care, Makeup, SkincareHealth
Aromatherapy and essential oils , Beauty supplements, Medical supplies and accessoriesHousehold goods
Air treatment, Bath and shower supplies, BlanketsPCs and laptops
Computer accessories, Computer components, Desktop pcsHome appliances and electronics
Air conditioners and coolers, Air treatment, Blenders, mixers, and food processorsCameras
Camera supplies, Digital cameras, Drones and multirotorsFood and drinks
Alcoholic beverages, Baked goods and desserts, BakingKitchen supplies
Baking tools, Coffee and tea accessories, Food containersClothing
Women's tops, Brands and shops, Men's coats and jacketsShoes
Men's shoes, Other shoes and footwear, Outdoor footwearAccessories
Bags, Accessories and jewelry, BeltsMom and baby
Baby books and toys, Baby food and snacks, Baby suppliesInterior and furniture
Beds, Carpets and rugs and mats, ChairsHobbies
Animes, Arts and crafts, Card gamesOutdoor
Camping beds and cots, Camping stoves, CoolersDIY and tools
Sports and fitness
Accessories, Badminton, BasketballPets
Cat supplies, Dog supplies, Fish and aquarium suppliesBooks, CDs, and DVDs
Books and magazines, CDs, Linguistics, dictionaries, and phrase booksGames
Console accessories, PC and console gamesCars and motorcycles
Car accessories, Car seats, Car suppliesGifts
Christmas-related gifts, Gifts for kids, Gifts for menHome improvement and tools
Flooring, Door hardware and locks, ElectricalSmartphones and tablets
Smartphone accessories, Smartphones, StorageBanking and finance
Credit cards, Debit cards, Services and appsInsurance
Car insurance, Life insurance, Medical insuranceAudio
Earphones, Gaming, HeadphonesSmartphone applications
Business apps, Dating apps, Education appsOthers
Others, Others, Merch