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Kooltherm K5 can achieve a whopping R4.0 in just 80 mm.
Kooltherm K5 can achieve a whopping R4.0 in just 80 mm.

Innovative exterior insulation and finishing system (EIFS) MasterWall K-Series is powered by Kingspan’s Kooltherm K5 External Wall Board.

Kingspan Insulation Marketing Manager, Mr. Karim Muri, says Kooltherm K5 delivers the highest performance available in external rendered insulation systems.

“Kooltherm K5 can achieve almost double the thermal performance of conventional polystyrene of the same thickness. An 80 mm thickness of K5 achieves R4.0 compared to only R2.1 for polystyrene. This super high performance can play a huge role in helping to achieve 6-star energy ratings and beyond.”

Expanded polystyrene is currently the most commonly used insulation substrate in EIF systems.

The MasterWall K-Series system also boasts the highest fire ratings of any EIF system available in Australia, according to Mr. Muri.

“MasterWall’s K-Series system achieves an incredible BAL-40 [Bushfire Attack Level] rating, which is higher than any EIFS using polystyrene. This is due to exceptional fire performance characteristics of Kooltherm.”

Mr. Muri explains that Kooltherm behaves differently than polystyrene in fires.

“Kooltherm is a thermoset material, whereas polystyrene is a thermoplastic. Thermoplastics soften, melt, or drip when heated, while thermoset materials harden and char, and hold their integrity. Kooltherm also gives off very little smoke.”

While common in Europe and North America, exterior insulation and finishing systems are just beginning to get traction here in Australia. The pursuit for greater energy efficiency is proving a real driver here, says Mr. Muri.

“As building professionals and home owners reach for 6-star energy efficiency and beyond, they’re looking for new and innovative ways to achieve that. EIF systems like MasterWall’s K-Series are ideal and can add tremendous performance to any wall construction, whether it’s framed or brick.”

Posted on: 7 August 2012

Office locations

Head office

Kingspan Insulation

44 Millrose Drive

Malaga, WA, 6090

Tel: 08 9209 3964

Fax: 08 9249 8811


Kingspan Insulation

38-52 Dunheved Circuit

St Marys, NSW, 2760

Tel: 1300 247 235


Kingspan Insulation

Suite 10, 10 Depot Street

Banyo, QLD, 4014

Tel: 1300 247 235


Kingspan Insulation

Unit 7

756 Blackburn Road

Clayton, Vic, 3168

Tel: 1300 247 235


Kingspan Insulation

239 Magill Road

Maylands, SA, 5069

Tel: 1300 247 235

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