Contact us
Kingspan Insulation
Kingspan Technical Insulation
Kingspan Ireland
Kingspan Insulation
Kingspan Technical Insulation
Legal information
Cookie Policy and Control
Terms & Conditions of Website Use
Website Privacy Notice
Data Controllers
Direct Marketing Consent
Customer Privacy Policy
Gender Pay Gap

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

BACK TO TOP

Discover More about Kooltherm

What can we help you with?

Talk to us today
Request a U-value
What Are U-Values, R-Values And Lambda Values Article- 4:3

What are U-values, R-values and Lambda Values?

Lambda, R-values, U-values, Thermal Conductivity and Thermal Resistance simplified in one article

Knowledge Article4 min read
kingspan-who-we-are

Types of Insulation - a Guide

We manufacture five types of insulation for walls, floors and roofs.

Knowledge Article4 min read

Frequently Asked Questions

  1. Home
  2. Floor Insulation Boards
  3. Kooltherm K10 PLUS Soffit Board
Kooltherm K10 PLUS Product Render Corner
Soffit insulation with a building board outer face

Kooltherm K10 PLUS Soffit Board

Kooltherm K10 PLUS is a premium performance soffit insulation solution with an impact resistant building board for when an improved finish is required. It allows for a thin structural ceiling (soffit) construction with an insulation component that delivers a thermal conductivity of as low as 0.021 W/mK.

Product Highlights

  • One of the thinnest commonly used insulation for soffits, allowing U-values to be reached with minimal thickness

  • Impact-resistant building board outer face for an improved finish

  • Easy to handle and install compared to some other commonly used insulants

  • Part of our Kooltherm range of premium performance insulation

Calculate U-value