SIGA Wigluv 20/40

(1 customer review)


The single sided, high-performance adhesive SIGA Wigluv 20/40 offers all of the benefits of  SIGA Wigluv 60, with the addition of a split tearproof backing strip. It provides an optimum solution for permanently air sealing corner penetrations with a precise and quick application. SIGA Wigluv 20/40 is recommended for tightly air sealing breathable membranes and facade membranes, overlaps, penetrations and bonds on the outside.

To get optimal results from your window flashing detail, Check out SIGA’s:

Ultimate Guide to Window Flashing

SKU: 7510-6025 Category: Tags: ,

Wigluv 20/40

SIGA Wigluv 20/40 offers all of the benefits of SIGA Wigluv 60 with the addition of a split tearproof backing strip. This innovative design allows for a precise and quick application of the air sealing tape in corner penetrations such as doors and windows. SIGA Wigluv 20/40 single sided high-performance adhesive is the optimum solution for tightly air sealing breathable membranes, facade membranes, overlaps, penetrations and bonds on the outside.

Driving rain resistance in combination with SIGA Majcoat or SIGA Majvest has been proven by the TU Berlin.


SIGA Wigluv 20/40 tape has a high adhesive strength at high and low temperatures, creating a reliable air barrier for a wide range of applications. The split backing makes taping in corners a struggle free.

With a low perm rating, Wigluv 20/40 is impermeable to water yet has the ability the diffuse water vapor, preventing condensation. This makes Wigluv 20/40 the most effective building tape for high performance weather sealing of windows and roof and facade membranes; perfect for Passive House construction and certification.

Not only is Wigluv 20/40 a premier high performance air and weather sealing tape, but its easy to work with too! It is hand-tearable and has an easy to remove backing, making application quick and easy. Its elasticity makes it versatile and its high adhesive strength makes it worry free!

Suitable substrates

  • Wood
  • OSB or plywood
  • Gypsum fibreboards
  • Cement fiberboard
  • Metals
  • Hard plastics
  • Electric cables
  • Rigid Foam Insulation

Suitable membranes

Vapor and air barriers such as MajvestMajcoat, or other weather barrier membranes.

Avoid using with tar paper, bituminous or silicone based membranes.

Width: 2.4 in.

Length (per roll): 82 ft.

Wigluv Technical Data

Wigluv Health Product Declaration

SIGA Limited Warranty

Wigluv MSDS

Wigluv Eco Certificate

Wigluv Driving Rain Certificate

Siga and Hunter Panels

1 review for SIGA Wigluv 20/40

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  1. Alisha (verified owner)

    Verified reviewVerified review - view originalExternal link

    Haven’t used yet but if its like wigluv 60 it will be great.

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