P&P Plastics pty Ltd ^

UT Woven

UT Woven White

  • Prevents wind gusts lifting tiles,
  • Prevents windblown rain/dust from:
    • damaging ceilings
    • rotting roof timbers
    • corroding plumbing


UT White is a polyethelene membrane that has been specially formulated for use under roof tiles.

It is 0,25 mm in thickness and made in rolls of 1,5 x 30m. U.T. White is dimensionally stable, light in weight, translucent, and weatherproof, handling and installation are easy, and it seals around nails.It is used for the prevention of draughts and dust penetration into the roof spaces through tiles and slates, and prevents damage to ceilings, rotting of timbers, and corrosion of plumbing. Dust has also been known to penetrate between cornices and walls, initiating or aggravating allergies in susceptible people. The membrane is also designed to prevent moisture from warm damp air reaching and condensing on ceiling boards and other vulnerable points in the building fabric. U.T. White also prevents strong wind from lifting and ripping off roof tiles. Most Building societies insist on the use of under-tile membrane where the roof pitch is less than 26 deg. or more than 45deg. and in exposed coastal areas.

Product SABS Spec
Tensile Strength, N/mm of width, min 2,16
Elongation at break, %, min 200
Puncture resistance, N/mm of thickness, min 29,0
Resistance to accelerated weathering  
Retention of breaking strength, % 90
Retention of elongation at break, % 90
Light transmittance, %, min 35
Water vapour transmission, g/m² /day,max 2.9