Your roof is only as good as your roofing underlayment by carlsonpros | Jun 27, 2013 | Blog | 0 comments These products are top of the line and that is the ONLY reason why we use them! as for our roofing underlayment. TITANIUM UDL-30 Features & Benefits. Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.