- 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
Write a review!
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.
Reviews (0) • Write a review!
This product has no reviews yet. Write a review!
R.M. Lucas 776 - Elite Flashing Cement Rubberized 10 oz....
Designed as a super-premium, high-performance flashing cement for use on modified bitumen and asphalt roofs
Price: $3.90
Availability: In Stock
Usually ships within 1-2 Business Days
Lucas #776 Elite™ Flashing Cement is designed as a super-premium, high-performance flashing cement intended for use on modified bitumen and asphalt roofs. It is also an excellent cold process inter-ply adhesive for SBS modified bitumen single-ply membranes. Cold process adhesives eliminate the need for hazardous torches and hot asphalt kettles. Also an excellent form tie cement for use with rubberized asphalt waterproofing systems. Lucas Elite™ Flashing Cement is the highest quality, most...
5-1/2" Pointing Trowel
5-1/2" Pointed Blade
Price: $3.50
Availability: In Stock
Usually ships within 1-2 Business Days
This 5 ½″ pointing trowel features a pointed blade designed to fit into mixing buckets and apply adhesives during tile installation, patch work, hard-to-reach zones, thin-set spreading under counters, and backsplash applications. The tool includes a carbon steel blade and a wood handle for durability and reduced fatigue. Key features: Pointed 5 ½″ blade sized for detail work and bucket use Premium-grade carbon steel blade for durability Wood handle designed to provide comfort and...
Ivy Classic 11150 - Double Interlocking Retractable Knife
Heavy-duty retractable utility knife with a double interlocking body for rock-solid blade hold. Tool-free blade change, multi-position slide, and a rugged, contoured handle for safer, controlled cutting on the jobsite.
Price: $4.45
Availability: In Stock
Usually ships within 1-2 Business Days
Built for tough, everyday cutting, the 11150 pairs a double-interlocking zinc body with a smooth multi-position slide for a rock-solid, wobble-free blade hold. The tool-free change system swaps blades in seconds, while the contoured, non-slip grip keeps your hand secure through long shifts—perfect for roofing, drywall, flooring, packaging, and general trades. Key Features Double interlocking body clamps the blade on both sides for superior rigidity and safer cuts. Multi-position retractable...
Marathon Roofing Products C1-1858 - 8 in. Plastic Strainer
Friction fit by twist and lock
Price: $29.50
Availability: In Stock
Usually ships within 1-2 Business Days
The Marathon C1-1858 is an economical 8-inch plastic strainer designed to protect roof drains from debris. Made from durable black plastic, it installs quickly using a twist-and-lock friction fit. Compact in size at 7-5/8″ outside diameter and 5-1/2″ in height, it provides a simple and cost-effective replacement solution that fits many applications. Key Features: Economical, fits many applications 8″ size with twist-and-lock friction fit design Black plastic construction Compact design for...