TESCON EXTOSEAL Sill Tape

TESCON EXTOSEAL Sill Tape is a flexible flashing tape for use around framed joinery openings as a secondary weather-resistant barrier.

The system is installed into and around the framed joinery opening over the building underlay and exposed frame to cover both the face and edge of the opening framing. 

TESCON EXTOSEAL Sill Tape has been appraised as a flexible flashing system for use around window and door joinery openings for buildings within the following scope:

• The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1.
• With a risk score of 0-20 calculated in accordance with NZBC Acceptable Solution E2/AS1 Table 2.
• With wall cladding systems complying with NZBC Acceptable Solution E2/AS1 or a valid BRANZ Appraisal that specifies a flexible flashing system.
• With flexible wall underlays compatible with the flashing tape.
• Situated in NZS 3604 wind zones up to and including extra high.

TESCON EXTOSEAL Sill Tape has also been appraised as a flexible flashing system for use around window and door joinery openings for steel-framed buildings within the following scope:

• The scope limitations of NZBC Acceptable Solution E2/AS1 with regards to building height and floor plan area.
• Constructed with steel framing complying with the NZBC.
• With a risk score of 0-20 calculated in accordance with NZBC Acceptable Solution E2/AS1 Table 2.
• With wall cladding systems covered by a valid BRANZ Appraisal that specifies a flexible flashing system.
• With flexible wall underlays compatible with the flashing tape and steel frame.
• Situated in NZS 3604 wind zones up to and including extra high.

TESCON EXTOSEAL Sill Tape Application Guide, 2014-04 M14155

Always refer to the Appraisal in full and the technical literature.