This waterproofing product is an ideal solution for decks that need extra protection from the elements. It is designed to provide a waterproof barrier that will keep water from seeping into the wood and causing damage. The waterproofing is easy to apply and is formulated to be UV resistant, so it won’t fade or wear away over time. It also provides a slip-resistant surface, making it safer to walk on. This product is an ideal choice for decks that get a lot of foot traffic or are exposed to the elements. With this waterproofing, you can keep your deck looking great and performing at its best for years to come.
Expert’s Top 10 Picks & Best Waterproofing For Decks, 2023 Review and Comparison Guide
1#. Goberco Under Deck Drainage System -Z/50/12-50′ Long Roll, for 12” Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage
Features
On-top of joists installation – keep framing and under deck area dry.
Easy to install – 1. Staple on top of joists 2. Self sealing tape over joints 3. Screw downspouts to water evacuation holes.
Material cost is about $ 2/s.f. (Goberco membrane is about $1.5/s.f., self sealing joist tape is about $0.4/s.f. , regular downspout + plastic gutter + roofing screws are low cost).
Save Time / Reduce Leaks – Fold against house wall for flashing (reduce leaks at ledger board) – Deep channel valley between joists – Regular downspout redirect water flow into a gutter (prevent water dripping / no special downspout needed). U.S. patent # 9,453,338
2#. Goberco Under Deck Drainage System -Z/50/16-50′ Long Roll, for 16” Joist Spacing, 30 Mil Thick Trough, Top Side is Black and Down Side is White.
Features
On-top of joists installation – Keep framing and under deck area dry – Heavy Duty 30 mil thick black lldpe
Easy to install – 1. Staple on top of joists 2. Self sealing tape over joints 3. Screw downspouts to water evacuation holes.
Material cost under $ 2/s.f. (Goberco trough is about $1.2/s.f., self sealing joist tape is about $0.4/s.f. , regular downspout + plastic gutter + roofing screws are low cost).
Save Time / Reduce Leaks – Fold against house wall for flashing (reduce leaks at ledger board) – Deep channel valley between joists – Regular downspout redirect water flow into a gutter (prevent water dripping / no special downspout needed). U.S. patent # 9,453,338
3#. Liquid Rubber Textured Polyurethane Deck Coating – Solar Protection Deck Sealant, Non-Toxic Multi-Surface Waterproofing Membrane, Easy to Apply, Stone Gray, 1 Gallon
Features
INNOVATIVE PROTECTIVE DECK COATINGS – Liquid Rubber Polyurethane Deck Coating is a high-performance polyurethane coating with a hard, durable & waterproof surface with excellent UV stability
POLYURETHANE COATING FOR – Deck protection, on concrete or wood walkways, non-corroded metal structures, pool decks, indoor/outdoor floors, fences, baseboards, plywood surfaces, and more
EASY TO APPLY – Apply using a conventional brush, roller, or single component sprayer; no mixing required
COVERAGE – 40 square feet per gallon, final coverage after 3-4 generous coats. 30 square feet per gallon for high traffic areas (4-5 generous coats)
APPLICATION – Avoid hot, intense direct sunlight during application. Apply above 10 degrees Celsius (50 degrees Fahrenheit). Do not apply later in the day if dew is forecast
4#. Thompson’s Water Seal Semi-Transparent Wood Sealer, Sedona Red, 1 Gallon
Features
Durable Protection from Water & Sun Damage
Year-Round Protection in Just One Coat
Enhances Wood Grain
Guaranteed 5 Years on Decks, 7 Years on Fences and Siding
Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood
5#. DEFY Crystal Clear Composite Deck Waterproofing Sealer, 1 Gallon
Features
WATER-BASED, CLEAR COMPOSITE DECK SEALER – This water based, clear wood and deck sealer protects composite wood from the harmful effects of the sun, while adding little to no change to the natural look of your composite deck.
FORTIFIED WITH ZINC NANO-PARTICLE TECHNOLOGY– It’s like sunscreen for your wood. Tiny zinc particles dispersed throughout the stain reflect damaging UV rays, preventing premature graying and color loss.
EXTREMELY DURABLE, HIGH QUALITY RESINS – DEFY Composite Deck Sealer is made with the highest quality resins available that have better resistance to fading and darkening. The result is a quality sealer that typically lasts a season or two longer than competitive products.
QUALITY THAT LASTS – DEFY Extreme Composite Deck Sealer is a premium-grade, clear deck sealer that is built to last. Keep your weathered composite deck, or fence looking great for longer by using DEFY.
EASY TO MAINTAIN – When it’s time to do a maintenance coat, there’s no need to strip the surface. Make sure the surface is clean, then apply a single maintenance coat of DEFY Composite Waterproofing Sealer.
6#. Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz
Features
Stain Your Deck Quickly And Easily – Olympic Smart guard is a patent-pending deck stain product that allows you to simply spray on the sealant eliminating the need for back-brushing your deck.
Simple Stain Process – To apply Olympic SmartGuard Deck Sealant simply pour the pouch into a deck sprayer, add 2 gallons of water, and then spray over your deck – it works on traditional wood decks, concrete, and even composite decking!
Quick Dry – Dries in 1 hour so you can entertain or spend time outdoors with less hassle and less disruption. Apply this deck sealant quickly and get back to enjoying your day.
Use Even After Rain – Can be applied after cleaning or rain ensuring you get to have fun on your deck as quick as possible
Durable – Strong durability and waterproofing protection makes Olympic Smart Guard the smart choice for any homeowner who wants to seal their wood or composite deck quickly and still enjoy the outdoors.Multi-Surface Use – While many deck sealants only work on wood, Olympic Smart Guard works as a sealant on Wood Decks, Concrete Patios, Masonry, and even weathered Composite Decks.A Trusted Name In Deck Stain Technology – The Olympic brand has been trusted to provide quality results since 1938. Its history of excellence and expertise has made Olympic Stains a category leader with a reputation for delivering innovation and durability at an affordable price. Gorgeous results are always guaranteed with Olympic Stains. With a full range of exterior stains, resurfaces and wood cleaners, we have the products you need to complete your next wood staining project right.
7#. Cabot 140.0001000.007 Crystal Clear Waterproofing, Clear – 1 Gallon
Features
Water-based
Unique silicone formula
Ideal for wood, brick and concrete
Brand name: Cabot
8#. Eco Advance Wood Siloxane Waterproofer – 1 Gallon
Features
Ready to use commercial grade formula can be applied using a standard garden pump sprayer
Ideal for use on wood decking, wood fences, plywood, wood shingles, wood siding and much more
Protects against water damage, oil, stains, mold, mildew, de-icing salts, and pool/spa chemicals
Water-based, non-toxic, non-flammable formula does not harm landscape plantings
Vapor permeable (breathable) water proofer can be used on new wood
9#. Thompson’s WaterSeal TH.024101-16 Multi-Surface Waterproofer, Clear, 1 Gallon
Features
Prevents Water Damage
Beads and Waterproofs
Allows Wood to Gray Naturally
Use When Mildew and Biological Factors are not a Problem
For use on Terra Cotta Planters, Birdhouses, Mailbox Posts and Other Small Exterior Surfaces
10#. Seal-Once Marine Premium Wood Sealer – Waterproof Sealant – Wood Stain and Sealer in One – 1 Gallon & Clear
Features
MARINE SEALANT: Our liquid formula creates a UV-stable coating for protection against the elements, saltwater spray, and water damage. Marine is a great protector for outdoor furniture, thermally modified wood, and boat docks. Marine is safe for use over open water and is non-hazardous to aquatic life.
DECK STAIN: It’s water-based, ultra-low VOC, great for enhancing the extended life of your flooring, siding, and porch. The paint forms a water-resistant shield around wood fibers at the cellular level to help preserve the natural color.
WATERPROOF WOOD SEALER: The wood used on boat docks, decks, and retaining walls near rivers, lakes, oceans, and ponds is subjected to constant moisture. We crafted a sealer, remove stain, and finish all in one, specifically for these installations.
WOOD SEALANT: Our fast-drying protector penetrates wood below the surface, coating the wood fibers at the cellular level, which creates a long-lasting, flexible, breathable barrier. It provides a no-fuss, easy clean-up with soap and water.
SEAL-ONCE: Our user-friendly wood sealers and stains are an effective way to protect your lumber or concrete against water damage. When you use Seal-Once, you have the satisfaction of knowing our products will not harm pets, plants, or people.
