LapLock-PSU

Roofnado LapLock PSU (HT)

All Weather Protection

With LapLock™ PSU (HT) installed, Mother Nature doesn't stand a chance!

StormTread Roll

LapLock™ PSU (HT) is a high temp. self adhered roofing underlayment for sloped roof applications. LapLock™ provides unmatched protection from storms, hail, ice-dams, wind-driven rain, snow and water. LapLock™ PSU (HT) has a mechanical slip resistant walking surface which provides superior steep slope walkability for roofers. In addition, LapLock's dual-locking lap seal technology creates an outstanding water-tight barrier that keeps your roof dry no matter what Mother Nature throws at it.

LapLock™ PSU (HT) is designed for use under asphalt shingles, concrete tiles, all metal panels, shakes, synthetic shingles and primed cedar shakes. LapLock™ meets all the code requirements including ASTM D226, ASTM D4869 and AC 48.

LapLock™ PSU (HT) not only protects roof decks, it protects Roofers as well. Ask for it at your nearest roofing distributor today.

Download LapLock™ PSU (HT) Brochure [PDF]

Ice Dam Protection

Protect your home or building from damaging Ice Dams with Roofnado™ LapLock™ PSU (HT)

With Roofnado LapLock PSU installed, your roof deck, internal roof space and wall cavities remain dry and protected from ice dams. If left unprotected, pooling water can rot your roof deck and supporting beams. Water can seep into your roof space and wall cavities causing serious damage to your valuable home or building.

Ice Dam Illustration

LapLock™ Dual-Locking Lap Seal Technology

LapLock Technology IllustrationWith LapLock™ PSU (HT), every lap is protected from water ingress by a dual-action locking adhesive ! The first lock is a 3" wide strip of highly sticky adhesive that pressure bonds to the 3" overlap section below it. And the second lock is a 1" wide strip of adhesive that locks upward onto the underside adhesive of the sheet above forming a water-tight seal. Correctly installed with the dual-locking laps, dammed water or wind-driven water is blocked from penetrating the roof deck.

LapLock Technology Illustration

With LapLock™ PSU (HT), Every lap is protected from water ingress by a dual-action locking adhesive ! The first lock is s 3" wide strip of highly sticky adhesive that pressure bonds to the 3" overlap section below it. And the second lock is a 1" wide strip of adhesive that locks upward onto the underside adhesive of the sheet above forming a water-tight seal. Correctly installed with the dual-locking laps, dammed water or wind-driven water is blocked from penetrating the roof deck.

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AnchorDeck™
ShingleLock™
StormTread™

LapLock™ PSU (HT) Features & Benefits

High Temp Logo

For use under asphalt shingles, concrete tiles, all metal panels, shakes, synthetic shingles and primed cedar shakes.

LapLock Data Sheet [PDF]  LapLock Installation Instructions  LapLock Warranty  ICC ESR Report [PDF]  FBC Report FL21895 [PDF] LapLock PSU Safety Data Sheet [PDF]

Technical Data

Test/Standard* LapLock™ PSU (HT) Typical Value
Nominal thickness 50 mils
Weight per square 23 lbs
Nail Sealability ASTM D1970 Pass
Permeability ASTM E96 0.027 Perms
Thermal Stability 240° F
Temperature range 40° F to 240° F
Tensile Strength ASTM D5034 MD 105 lbs (47.6 kg) | CD 90 lbs (40.8 kg)
Tear Strength ASTM D4533 MD 35 lbs (15.8 kg) | CD 30 lbs (13.6 kg)
Adhesion to Plywood ASTM D903 4 lbs/inch
Liquid Water Transmission ASTM D4869 Pass
Fire Rating ASTM E108 Class A
UV Exposure 6 Months

Roll/Pallet Specs

Length per roll: 67’ / 20.4 m
Width per roll: 36” / 1.1 m
Weight per roll: 46.5 lbs / 21.1 kg
Roll size: 2 sq / 20 m2
Rolls per pallet 25
Pallet weight: 1,230 lbs / 559 kg

*Test data is based on average taken over several production runs and should not be considered or interpreted as minimum or maximum values. Values are typical data and not limiting specifications. All values ± 10 %. This product is manufactured in accordance with national standards which allow for non-critical variances in weights and measures.
† When correctly installed as per LapLock™ PSU (HT) installation instructions.