Legal Information
Cookie Policy
Data Controllers
Direct Marketing Consent Notice
Terms and Conditions for Use of the Website
Website Privacy Policy
Customer Privacy Policy

© 2026 Kingspan Holdings (IRL) Limited, All Rights Reserved

Back To Top
  1. Home
  2. Roof Insulation
  3. Therma TT46 Tapered Roof Board
Yellow Kingspan Therma™ rigid PIR insulation board (Therma TT46) with aluminium facer with green Therma logo's on it.
Illustration of a flat roof system with yellow Kingspan Therma™ PIR insulation boards. The insulation is mechanically fixed above a profiled metal roof deck and beneath a grey waterproof roofing membrane. The cutaway view highlights the layered roof construction, including the metal deck, insulation layer, fixings, and roof membrane.
Illustration of a flat roof system with yellow Kingspan Therma™ PIR insulation boards. The insulation is mechanically fixed above a concrete roof deck and beneath a grey waterproof roofing membrane. The cutaway view highlights the layered roof construction, including the concrete deck, insulation layer, fixings, and roof membrane.
Illustration of a flat roof system with yellow Kingspan Therma™ PIR insulation boards. The insulation is mechanically fixed above a profiled metal roof deck and beneath a blue single-ply roofing membrane. The cutaway view highlights the layered roof construction and insulation arrangement.
Illustration of a flat roof system with yellow Kingspan Therma™ PIR insulation boards. The insulation is fixed above a concrete roof deck and beneath a blue single-ply roofing membrane. The cutaway view highlights the layered roof construction and insulation arrangement.

Therma TT46 Tapered Roof Board

The Therma TT46 Tapered Roof Board is a rigid PIR insulation board faced on both sides with a multi-layer aluminium composite facing. The board meets the stringent fire safety requirements of FM Approvals, is designed for use beneath mechanically fixed and ballasted roofing systems and is used to create roof falls.

Product Highlights

  • λD-value 0,022 W/(m·K)

  • Meets the stringent fire safety requirements of FM Approvals

  • Insulation and drainage in one

Contact Us
Find the DoP