LinerLock, Inc.

LL-140 synthetic roof unerlayment is a heavy-duty premium grade Synthetic Roofing Underlayment for all steep sloped roofs with ultra performance, protection and ultra outstanding anti-slip/Anti-skid safety features.  UltraLock out performs traditional tar-paper asphalt felt underlayments resulting in less roof repairs and longer roof life – a long-term net value for homeowners.

• Uses “squeeze & twist” technology with additional yarn per square inch creating a unique tiger-skin textured walking surface that provides the ultimate traction in any weather condition.

More cost effective and competitive in price

• Instead of 4 or more layers fabric/membrane construction, LL-140 out performs with 3 innovative and special formulated layers resulting cost savings and overall weight reduction.
• Lighter and stronger than traditional asphalt based underlayment, which translates to increased savings on labor costs.

Outstanding Tear Resistance

• Base fabric is comprised of strong woven polypropylene scrim for outstanding tensile strength and tear resistance. High yarn count enhances strength and durability, preventing tearing and stretching from fasteners that could lead to leakage.

Resistance to Movement

• Sticky gel-like Skid-resistant bottom layer is coated with a proprietary formula which resists movement even without fastener on the roof deck that preventing fastener point tears.

Improved Leak Protection

• Proprietary woven technique and double-layer coating provides added leak protection and improved sealing around all types of fasteners. (Per Intertek Warnock Hersey testing Report# 100944599COQ-004, a 12 gauge roofing nail with a 0.375 in. (9.5 mm) head diameter and No. 16 gauge staples with 7/16 in. crowns were used for testing).

Exceeds Newest Code Requirements

Meets and exceeds newest Acceptance Criteria (AC207) and Class-A Fire Classification.

Resistance to Mold and Sun Damage

• 100% recyclable polypropylene water barrier impervious to mold growth is combined with a special formulated co-polymer.

Product Limited Warranty

• 6-month UV exposure protection
• 30-Year Product warrenty

May improve LEED and NGBP rating