Ultratherm Xtreme

ultratherm xtreme

Suitable applications: High-end buildings, low pitch

Insulated membrane roof assembly providing thermal, acoustic and structural performance to meet the precise requirements of your project. Install the Ultratherm Xtreme system over RoofLogic’s engineered structural base deck or standard plywood and concrete substrates.


High End

Low Pitch



Each component of the RoofLogic Ultratherm Xtreme system has been meticulously engineered to deliver the utmost levels of performance.

RL BaseDeck is the only steel base deck that has undergone rigorous testing in New Zealand for wind uplift, point load, and fastener pull-out resistance.

RL PIR Board provides exceptional thermal performance (and meets all the Climate Zones for H1 as per the NZBC).  It also offers improved impact resistance due to a high compressive strength twice that of most other PIR product in the New Zealand market.

When enhanced impact resistance/trafficability and acoustics is required, RoofLogic specify a range of high density roof boards to meet the demands of your project.

RoofLogic Ultratherm Xtreme is a commercial membrane roofing solution that provides superior thermal and acoustic performance and extreme durability with the use of our Fibertite KEE membrane and Derbigum modified bitumen membrane.

benefits and advantages
  • Designed, Engineered and Tested as a System
  • Management of Condensation Risk
  • Acoustic Performance
  • Weathertightness
  • Thermal Performance
  • Durability
  • Fire Performance
  • Design Flexibility
Extreme Fibertite