Pros
- Fast and easy peel-and-stick installation praised by DIY users
- Proven waterproofing and durability on small roofs like sheds
- Sticks well in warm weather and holds up over time
- Cuts easily with utility knife for custom fits
- Great value for professional-grade shingle starter results
Cons
- Adhesive performs best in warm conditions; may need heat in cooler temps
- Narrow 7.2-inch width limits coverage compared to wider alternatives
- Not ideal for large-scale roofing without multiple rolls
The MFM ShingleStarter 47733 is a self-adhesive roofing membrane designed specifically as a starter strip for shingle roofs. Measuring 7.2 inches by 33.5 feet, it adheres directly to the roof deck, eliminating the tedious task of cutting shingle tabs. This makes it perfect for DIY homeowners tackling small projects like sheds, dog houses, bunny hutches, or minor roof repairs, where speed and simplicity matter most.
Standout features include its waterproof, self-sealing properties around nails and penetrations, plus a built-in seal tab that prevents wind uplift at roof edges. Users report excellent real-world performance: it installs quickly on warm days, holds shingles securely, and remains waterproof after a year of exposure. Reviewers highlight its ease of use with a staple gun or nails, and its ability to cut cleanly with a razor knife for precise fits.
Build quality shines with 50 mil thickness, a black granular surface for grip, and a sturdy hard core that keeps the roll intact without collapsing or thumping during use. Manufactured in the United States, it feels robust and professional-grade, suitable even for pre-tile underlayment or patching cracked bitumen roofs.
Potential drawbacks include adhesive that sticks best above 65 degrees Fahrenheit, potentially requiring heat assistance in cooler weather, and its narrower width which may need overlapping for broader eaves. Some prefer wider competitors for larger jobs.
Overall, this shingle starter earns high marks for DIY reliability and performance on small roofs. If you want a hassle-free start to shingling without cutting or waste, it delivers solid value and peace of mind against leaks and wind damage.
Key Specs:
- Size: 7.2" x 33.5'
- Thickness: 50 mil
- Material: Peel and stick membrane
- Weight: 6.65 pounds
- Dimensions: 7.9 x 6.7 x 6.5 inches
- Model: 47733
- Manufacturer: MFM Building Products
- Made in: United States