Silverbrook Development Case Study

by Lisa Downey | Apr 27, 2023

KORE case studies offer an inside look at how our EPS solutions perform in real-world applications. The following case study is with Carroll O’Keefe Ltd on the Silverbrook Development, in Tullamore, Co Offaly featuring KORE’s Insulated Foundation System.

Case Study Details

Project Name: Silverbrook Development, Tullamore, Co. Offaly

Products Used: KORE Insulated Foundation System

Main Client: Carroll O’Keefe & Co Ltd

KORE Representative: Jonathan Malone

A Word from the Customer

Diarmaid Carroll

Construction Director, Carroll O’Keefe & Co Ltd

We were selected as main contractor for the Silverbrook development located at Arden Road, Tullamore, Co. Offaly.
Consisting of three and four-bedroom homes over several phases, we chose astandard strip foundation for phases 1-3. In phase 3, we completed 22 bases in 12 months.

Looking to maximise on-site efficiencies and reduce operational costs, we switched to the KORE Insulated Foundation System on Phases 4 & 5. In phase 4, we completed 50 bases in 15 months. By using the system, we can now build 25% more homes every year while saving up to €40,000 per month on our operational costs.

Silverbrook phase 4 plans

Phased Layout Plan

The development is comprised of five phases, with phase four and five using KORE’s Insulated Foundation System consisting of 98 units total.

KORE’s Insulated Foundation System ticks all the boxes

Carroll O’Keefe Ltd chose KORE’s Insulated Foundation System on this timber frame development for many reasons, including:

  • Increased efficiency & speed on site, reduced construction time from three week to two weeks, resulting in 25% more houses built per year
  • Cost savings on site- €10,000 per week saved on operational costs on site, with further savings on reducing concrete needed by 40%
  • Exceeds Part L 2022 Building Regulations, achieving a u-value of 0.10W/m2k
  • Worked perfectly with the current groundworks, fully engineered and NSAI certified
  • Better planning with foundations manufactured in batches to speed up the process of installation, working with site plan for phase 4 & 5 for seven batches, consisting of 14 units at a time, 98 units total
  • Delivery of material on schedule with the tight construction timeline
  • Reduced on site waste by two thirds, including health & safety concerns
  • Increased on site safety with elimination of working in trenches, in close proximity to heavy machinery, with no heavy lifting of blocks, or removal of heavy materials post installation
  • Increased sustainability with KORE’s EPS material holding a third party verified environmental product declaration (EPD), two thirds reduction in on site waste, reduction in embodied carbon with 40% reduction in concrete used per base
  • Superior technical backup and support throughout, including specialist installation training on site and online

The seamless integration of KORE’s Insulated Foundation System on-site on phase 4 & 5 ensured speedy delivery of low energy, high-performing homes, increasing productivity and availability of essential housing in Ireland.

Time, cost and quality were the three leading factors in choosing KORE’s innovative system, exceeding Part L Building Regulations, while meeting strict timing deadlines.

KORE’s EPS is also water-resistant, perfect for working in any weather, easily installed in damp conditions without the need to worry about mould growth, water absorption, or rot. 

The KORE technical department provided in depth training both on site and online for any person who will be working with the foundation system. Once initial training was completed and the first number of foundations were installed, KORE’s sales and technical teams visited the site for quality assurance checks, and to ensure compliance with the NSAI certificate. The process of installation was easily repeatable, and each base was specifically engineered for both the ground conditions and the build, however the technical team were always on hand if any challenges arose. 

Project Engineer & Assigned certifier on the project is Cormac Allen, Director at CConsult Engineering, Offaly.



Jonathan Malone

Regional Sales Manager

Jonathan Malone has been a Regional Sales Manager for KORE since the beginning of 2020. Jonathan has over 15 years of experience in the construction industry, starting as a carpenter before moving into construction sales for the past 8 years. Jonathan previously worked for an insulation distributor and builders merchant, and has studied at both DIT and Dublin Business School. You’ll see Jonathan around Dublin and the surrounding counties.

You can reach Jonathan by email or by phone on +353 87 323 0477.