RamShield 250HTSA is an advanced, self-adhered roofing underlayment engineered for sloped roof applications. Designed with a high-strength, three-layer facer and a deeply embossed, non-woven blue top surface coated in proprietary SBS-modified bitumen, it delivers exceptional performance beneath asphalt shingles, tile, shake, and metal roofing systems. This premium underlayment is purpose-built to outperform and replace traditional sanded and granular asphalt-based peel-and-stick products.
RamShield 250HTSA is an advanced, self-adhered roofing underlayment engineered for sloped roof applications. Designed with a high-strength, three-layer facer and a deeply embossed, non-woven blue top surface coated in proprietary SBS-modified bitumen, it delivers exceptional performance beneath asphalt shingles, tile, shake, and metal roofing systems. This premium underlayment is purpose-built to outperform and replace traditional sanded and granular asphalt-based peel-and-stick products.
As a high-temperature underlayment, RamShield 250HTSA helps maintain a cooler working surface while providing reliable protection under primary roofing materials. Its uniquely engineered high-traction surface enhances walkability on steep slopes—even in conditions with moisture or condensation—making installation safer and more efficient.
The adhesive layer utilizes advanced SBS-modified bitumen technology, ensuring strong, consistent adhesion across a wide range of temperatures and substrates, including plywood and metal. With a performance range from -40°F to 260°F (-40°C to 126°C), it delivers dependable durability in both extreme cold and heat. A split silicone-coated release liner simplifies handling and speeds up installation.
Manufactured at a robust 60 mil thickness, RamShield 250HTSA comes in 2-square rolls (3 ft x 66.7 ft) weighing approximately 50 lbs. Its superior tear strength and adhesion allow contractors to transport and position rolls with ease on the jobsite.
FEATURES:
- Water-repellent, non-absorbent, and UV-resistant for up to 180 days
- 3″ overlap edge for secure, reliable seams
- Ice dam protection and high-temperature performance
- Class A fire rating (ASTM E108)
- Smooth rollability for efficient installation
- Compatible with metal, shake, concrete tile, slate, and asphalt shingles
- Resists wrinkling, cracking, and stiffening in cold weather
- Will not dry out or leach oils in high-heat conditions like traditional asphalt products
- Synthetic composition resists mold growth
- Durable polymer construction with 100% recyclability
- Florida Building Code and Miami-Dade approved
- Backed by a limited lifetime warranty
USES:
- Asphalt Shingles
- Tiles
- Shakes
- Metal roofing