HYDRA Wall Underlay
HYDRA Wall Underlay is an absorbent, breathable, fire retardant, flexible wall underlay used behind all wall cladding. Suitable with absorbent and non-absorbent claddings in both direct and non-direct fixing.
Features & Benefits:
- Is an absorbent synthetic underlay
- Is a breathable type underlay
- Flammability index rating of ≤5
- Can be left exposed for 60 days
- Suitable in all wind zones including extra high when used with Rigid Air Barriers
- Can be used with no internal wall linings ie: attic spaces.
- Used for residential & commercial applications
- Suitable on timber and steel framing
- Meets provisions of NZBC: B2, E2 & F2
- BRANZ Appraised # 1072 (2019)
