Residential Flat Roofing
Fix your flat roof once. Yourself.
Watch the System Overview (5:15)
BEFOREAFTER
BEFOREAFTERA seamless, fiber-infused silicone membrane for the flat and low-slope roofs regular roofers won't touch — sunrooms, porches, additions, mobile homes. One continuous layer, no tear-off, no seams for standing water to find.
Kits are sized by square footage and ship free to your door with every product, tool, and instruction you need.
Sized & priced to your exact roof
From a single tube of caulk to a complete system for thousands of square feet. Typical sunroom and porch roofs run $750-$2,200 all-in, installed by you over a weekend.
- In-stock & ready to ship from our USA facility
- Split into 4 installments on $100–$1,000 orders
- Free shipping on orders over $500
- 50 year warranty when registered
Real Homes, Documented Start to Finish
Not stock photos — documented customer installs, in their own words and pictures.
ResidentialProject #5344
DIY Residential Roof That Sealed the Deal
“The product was easy to apply, and the customer service was fantastic.”
ResidentialProject #5210
Slippery Coats and Solid Results
“The first coating was challenging, the second coating was easier and slippery. By the time we got to the end and finishing up, we were slipping and sliding. It was an experience to hang on to.”
ResidentialProject #5113
Commercial Roof Revived with a Seamless Overlay
“Very easy to install.”
Straight From the Roof
Real reviews from customers who installed it themselves.
David Vincent from Key Largo, FL
“THANK YOU for a great and reassuring experience! I have already referred this system to 3 family and friends. I'm looking forward to a very long, assured feeling of protection from water intrusion.”
Philip Posey from Tuscumbia, AL
“We could not be more pleased with the Crazy Seal product. We are expecting to have many years of enjoyment from our sunroom now that we do not have to worry about leaks.”
Douglas Evans from Overton, NV
“After viewing the DIY videos 4 times, I followed the instructions to the letter. The product went on easily.”
Dennis Van Dusseldorp
“Great product, went on like advertised and ended up with a great looking roof that will last a long time.”
Why Crazy Seal?
This isn't box-store roof coating. See what makes the system different — and why it costs more.
Why is Crazy Seal More Expensive?
Let's Get Crazy — Watch Our Crazy Tests (5:24)
How It Goes Down
No special tools. Three steps, guided by step-by-step videos.
1. Clean
Wash the roof with Crazy Clean so the membrane bonds to the roof — not the dirt.
2. Seal
Caulk and patch every seam, screw, and penetration with Crazy Caulk and Crazy Patch.
3. Coat
Roll on the seamless Crazy Seal membrane and never worry about that roof again.
Guides for Specific Residential Applications
Every roof has its own failure points. Pick yours for a guide written for it.
Barns
Stop fastener leaks and rust on metal barn roofs — no tear-off.
Read the GuideBoat Houses
A waterproof membrane for roofs in full-time marine conditions.
Read the GuideOutdoor Rooms
Seamless protection for patio covers, lanais, and pergola roofs.
Read the GuidePorch Roofs
End the wall-flashing leak on low-slope porch roofs.
Read the GuideSheds
A one-kit weekend fix for workshop and storage shed roofs.
Read the GuideSunrooms
Stop aluminum pan-roof seam leaks over your living space.
Read the GuideTiny Homes
Light, flexible, permanent roofing for tiny houses on or off wheels.
Read the GuideTalk to a Specialist About Your Roof
Tell us about your roof and we'll size the right kit with you — no pressure, no obligation.
- Backed by our 50 year warranty — do it once, do it right
- Kits ship straight to your door. Free shipping over $500
- Prefer to talk it through? Call us M-F 9AM-6PM EST
Get a kit built for your roof — takes about a minute.
(800) 963-0131