TEK Building System
High performance structural insulated panels
TEK Building System
High performance structural insulated panels.
© 2026 Kingspan Holdings (IRL) Limited, All Rights Reserved
Peter and Anita Reynolds had long harboured dreams of constructing their own home, so when a plot became available at Graven Hill – a development for custom build homes — they leapt at the opportunity. The three-bed property features an upstairs living room with a full height window providing views out across the local countryside and was featured as part of the Boundless Production series, The Street. Peter took responsibility for designing and constructing much of the home, utilising offsite construction methods - including SIPs panels - with support from TEK Delivery Partners, Timber Innovations.
All properties on the Graven Hill development must also comply with a Plot Passport which includes rigorous fabric performance requirements. To help achieve this, TEK SIPs were installed to create the structure for the property’s stylish gambrel roof design.
TEK SIPs panels feature two layers of OSB/3 autohesively bonded either side of a high-performance insulation core. Timber Innovations factory-cut the SIPs to the project’s specification before installing them using a mobile crane.
The panels deliver excellent thermal performance out of the box and, with the addition of a 50 mm thickness of
TEK Building System
With their lightweight design and offsite construction, SIPs panels can allow homes to be built more quickly than traditional alternatives. On the Reynolds home, they allowed the outer shell to be constructed in just three weeks. Peter was then able to easily fix the attractive and cost-effective steel roof cladding through the breather membrane and into battens fixed to the SIP’s OSB/3 facing.
The excellent spanning capacity and pre-insulated design of the TEK panels also provided a ready-made warm roof space, which the family has been able to transform into a cosy independent living area with its own en-suite.
Page reviewed: 28/07/25
Products Used in this Project
The outer walls of the property feature an insulated timber frame construction from Timber Innovations and are faced with blockwork, which helps to minimise noise from the nearby railway line.
"We wanted to show it was possible to build a home that was more suited to modern living whilst still being affordable for the average family".
Peter Reynolds, Designer and Homeowner.
Thermapitch TP10
Insulation for tiled or slated pitched warm roof spaces.