Whether you're insulating a pitched or flat roof, or upgrading a conservatory with a solid roof conversion, we offer a range of roof insulation boards to suit your needs and budget. From premium thermal performance to cost-effective solutions, there’s something for every project.

The Celotex PIR Insulation Board is a customer favourite, thanks to its lightweight design, reliable performance, and range of thicknesses to suit various roof spaces or insulation needs. For a more budget-friendly option that still offers excellent thermal efficiency, the EcoTherm Eco-Versal PIR Insulation Board is a versatile choice that delivers consistently great value. 

For specialist flat roof projects, EcoTherm Inno-Fix Foil Faced and Kingspan Thermaroof boards deliver professional-grade insulation and top-tier performance where it matters most. With multiple thickness options—plus Kingspan’s tailored solutions for a wide range of flat roof systems—you get the flexibility and efficiency needed to get the job done right.

Smart Protection for Your Home and Pocket – Unlock Roof Insulation Benefits

Built to last and made for easy fitting, our roof insulation boards maintain consistent temperatures by reducing heat transfer through overhead spaces. They lock in warmth during winter and keep interiors cool in the summer—enhancing comfort year-round while cutting energy bills. Engineered for long-term performance, they’re a smart investment in sustainability, efficiency, and lasting savings—whether you're renovating, upgrading, or building from scratch.

Choose Armstrong Cheshire for Smart Roof Insulation Solutions 

At Armstrong Cheshire, we provide quality roof insulation boards and building materials with fast, reliable delivery, both locally and nationwide. From our Cheshire roots to expanded service across the UK, we’re committed to competitive prices and getting the basics right.

With express shipping on many products, and same-day dispatch where possible, we keep your building and landscaping projects moving. Need expert advice? Our knowledgeable, friendly team is here to help—and trade customers can save 5% with a trade card discount.