Best Waterproof Ponding Water Roof Coating
If you want a long-term solution to your ponding water areas, this is the best waterproof roof coating product to use. Unlike silicone coatings that can't be walked on due to their inherent softness, our coating is as tough as nails and fully walkable. It withstands roof debris, extreme temperature swings, and passed the ASTM 9000 Hour Accelerated Weathering Test.
Once you apply one full roof coat, you get 15 years of guaranteed leak-free service. With once-a-year routine inspection to remove accumulated debris and ensure roof drains are clear, your coating should last 15–20 years. At that point, simply apply another coat that reactivates the previous coat and bonds together for renewed protection.
Why Cheap Roof Patches Always Cost More
Applying cheaper materials does not save you any money — it always costs you more. You end up redoing those areas every year or two with ineffective and incompatible products that make the problems worse. This ends up in a full roof replacement. Then you realize the money you "saved" at first was a very costly mistake.
The expensive cycle: Cheap patch → temporary fix → leak returns → patch again → damage worsens → full roof replacement. ArmorGarage breaks this cycle with a single application that lasts 15–20 years.
Full Roof Coverage & Warranty Details
Coating must be applied to the entire roof for warranty coverage. You may use a combination of the Ponding Water Roof Coating and our Tar & Rubber Flat Roof Coating for areas that do not have ponding water to receive full warranty coverage. Proper repairs to all flashings and other defects with ArmorGarage Roof Mastic are required prior to application.
Smart combination approach: Use the Ponding Water Coating on all ponding areas (or the entire roof if 40% or more ponds), and the standard Tar & Rubber Flat Roof Coating on non-ponding areas. Both products work together under the same warranty.
How To Identify Ponding Water Areas
After a good rain, go up on the roof and walk around. If you see puddles still sitting there after 24 hours, there's a good chance that's a ponding area. The telltale sign is soot accumulation — that's the sediment in the water settling out as the standing water slowly evaporates.
Any area with soot buildup must be coated with the Ponding Water Coating. If 40% or more of the roof is ponding, it's best to coat the entire roof with the Ponding Water formula. If less than 40%, you can spot-coat just the ponding areas and use the standard Tar & Rubber Coating on the rest.
Ponding water area with soot and sediment buildup
What Happens When You Use Big-Box Store Products
This is what happens when cheap roof cement from a big-box store is used in a ponding water area. These products are not engineered for standing water conditions. They break down, crack, and fail — leaving you with a bigger problem than when you started.
Big-box store roof cement failure in a ponding water area
Don't make this mistake. Products not specifically designed for ponding conditions will fail every time. ArmorGarage Ponding Water Roof Coating is purpose-built to thrive underwater, remain walkable, and last 15–20 years.
What Our Customers Are Saying
"Good explanation of products and how they should be applied. Website easy to navigate. You get what you pay for!"
— Timothy I. | February 2026
"Best products for flat roof with ponding issues."
Custom colors available for orders of 100 gallons or more. For roofs 10,000 sq ft or larger, Request a Quote for volume discount pricing. Call 866-532-3979 or email info@armorgarage.com for expert guidance on your ponding water project.
Ponding Water Roof Coating Application
Apply at 50 SF per gallon in one single coat. To order divide the ponding water area square footage by 250 and that is the required number of 5 gallon pails.
Can be applied in temperatures down to 35 degrees! A very nice feature of our Ponding Water coating is that it can cure enough in 2-3 hours to be impervious to rain. This is an important factor in the Pacific Northwest where it seems to rain continuously during some parts of the year.
Apply with heavy duty 18" roller, full cure in less than 24 hrs.
This product is sprayable but cannot be used with a sprayer that has been used for water based products, any residual moisture in hoses or gun will cause the coating to solidify. Use a sprayer that has been used for solvent based products or use new hose and gun. In most cases it is faster and easier to roll on with the 18" rollers. We make a special version for spraying, please specify if spraying. Sprayer should be a Graco type sprayer 795 or higher. Minimum size for sprayable version is 55 gallon drum.
Guarantee shall consist of coverage for delamination or erosion of the coating during the warranty period, coating must be applied to entire roof surface, there is no guarantee for partial roof coverage. We have never had an actual product failure but should you feel that the product has failed for any reason we request that the property owner notify ArmorGarage by email or fax with a description and nature of failure. On substantiation of a product defect, ArmorGarage, as its sole liability and the property ownerβs exclusive remedy, will provide sufficient replacement product to repair all affected areas. ArmorGarage is not liable for any labor or consequential damage costs such as but not limited to mold or mildew damage, loss of use or any damage to property.
Exclusions to warranty: Damage arising out of failure to apply coating in accordance with our instructions, natural disasters and acts of God or nature, shifting or swelling of the roofing system or structure, exposure to destructive chemicals, over accumulation of organic materials or other roof debris, failure of previously applied coating(s), acts and causes beyond our control, negligence, misuse of the product, and cosmetic changes in coating appearance.
Because there are extenuating factors beyond our control it is the purchaser's responsibility to repair all roof defects properly such as delaminating or damaged seams, flashings, mold, mildew or badly deteriorated roofing material prior to application of our roof coatings, to apply product at recommended thickness to a listed compatible surface during proper weather conditions.
