- Contractor-grade emergency powder for stopping flat roof leaks fast
- Can be applied during heavy rain and wet conditions
- Moves through standing water to seal leaks in minutes
- No special equipment required for application
- Covers up to 50 sq. ft. per 3.5-gallon container
- Complies with ASTM 4586-86B Type I, FED SS-C-153C, and ASTM D-2822 standards
Price: $24.29
Item #DEWITTS-911
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Description
DeWitt’s 911 Emergency Roof Patch is a contractor-grade powder formulated to provide a temporary, leak-proof seal on flat roofs during emergency conditions. The natural mineral compound expands to a gel on contact with water, helping stop leaks on built-up roofs quickly — even in inclement weather or standing water.
This product can be applied directly from the pail over suspected leak areas without special tools, and it continues to seal as long as it remains wet. When conditions allow, permanent repairs can be made after the temporary patch has served its purpose.
Key Features
- Temporary leak-proof seal for flat built-up roofs - expands to a gel on contact with water
- Can be applied in pouring rain and through standing water
- No special equipment required for handling or application
- Covers approximately 50 sq ft per 3.5 gallon pail
- Natural mineral compound - no flame support
Specifications
Coverage: ~50 sq ft per 3.5 gallon (25 lb) pail
Packaging: 3.5 gallon pail (25 lb)
Application: Surface application from dry pail over suspected leak area
Roof Type: Flat built-up roofs (commercial/residential)
Safety Notes
- Dry material can cause eye or skin irritation on contact; avoid dust inhalation.
- Wet patch material is slippery - use caution when walking on applied surfaces.
- Dispose of wet or dry material according to local, state, and federal regulations.
FAQs
Q: Can this patch be applied during rain or standing water?
A: Yes. This powder can be applied even in pouring rain and will move through standing water to help seal leaks.
Q: Is special equipment needed to apply this product?
A: No. It can be poured directly from the pail without special tools or equipment.
Q: How much area does one pail cover?
A: One 25 lb (3.5 gallon) pail covers approximately 50 square feet of flat roof area.
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