<p>A premium, heavy-duty, modified bitumen membrane manufactured to stringent GAF specifications.</p> <br /><br /><p>Benefits of Ruberod MOP Smooth Membrane include:</p><br /><br /><ul><li>Guarantees are available for up to 20 years</li><br /><li>Installed roof designs weigh less than 2 pounds per square foot</li><br /><li>Specially formulated modified asphalt gives Ruberoid Mop Plus Smooth Membrane lasting performance</li></ul>