• Tekton Wall Underlay can be used in all wind zones up to and including Very High, and with RAB Systems, Extra High
• Tekton Wall Underlay is fire retardant with a zero flammability index and can be used without restriction on all buildings, however must be separated from fireplaces, heating appliances, flues and chimneys in accordance with the NZBC.
• Tekton Wall Underlay can be left exposed for up 60 days

Tekton Flexible Wall Underlay is a key component of the complete 'Marshall Weatherization System' which is designed for complete (Secondary) building envelope weathertight protection.  Tekton is designed for use with Marshall Innovations' 'Super-Stick' flexible flashing tape (for Window/ Door openings), 'Trade-seals' (for service pentrations), 'Seam Tape' (for wrap joins) + HYDRA (Roof Underlay).

• Clause B2 — Durability
• Clause E2 — External Moisture
• Clause F2 — Hazardous Building Materials

Tekton has been available for use in New Zealand since early 2000s, and has been used in a large variety of projects, including single and mulit-unit residential, townhouses and apartments, healthcare and aged care facilities, and commercial buildings.