DuPont™ Tyvek® Metal

Multi-occupancy | Roof

Protect Your Roof with a Metal Roofing Underlay

DuPont™ Tyvek® Metal is a roofing drainage underlay which drains away the condensation that can build up beneath the cladding on standing seam metal roofs.


DuPont™ Tyvek® Metal

Tyvek® Metal roofing underlay is vapour-permeable, yet water-resistant and airtight. When used in combination with genuine Tyvek® accessories it can help to reduce condensation, improve overall airtightness, add thermal efficiency, and protect structural integrity.

Besides allowing condensation beneath stainless steel, aluminium, copper, and zinc roofs to drain away, Tyvek® Metal also reduces sound transmission such as rain clatter, and minimises material stress by permitting a degree of movement between the cladding and the timber beneath.


Features & benefits

Feature Benefit
  • Reduced risk of water damage and penetration
  • Durability
  • Long term performance
  • Vapour-permeable
  • Protection from internal water/moisture
  • Metal roof underlay
  • Reduces rain clatter and sound transmission

    Physical properties

    Method Unit Value
    Mass per unit area EN 1849-2 g/m2 407
    Maximum tensile force (MD) EN 12311-1 N/50mm 345
    Elongation at max. tensile force (MD) EN 12311-1 % 14
    Maximum tensile force (XD) EN 12311-1 N/50mm 290
    Elongation at max. tensile force (XD) EN 12311-1 % 20
    Resistance to tearing MD (nail shank) EN 12310-1 N 175
    Resistance to tearing XD (nail shank) EN 12310-1 N 175

    Technical resources


    Roofing how-to videos