Keep your home warmer, quieter, and more energy-efficient with premium loft insulation from JJ Building Materials. Designed to reduce heat loss and lower energy bills, our insulation range includes high-performance rolls and boards suitable for both domestic and commercial projects. Whether you’re topping up existing insulation or insulating a new build, our materials deliver lasting comfort and value.
Roof Insulation for Better Energy Performance
Our roof insulation products provide excellent thermal resistance, helping to retain heat in winter and keep your property cool in summer. Suitable for pitched or flat roofs, they are easy to fit between rafters or joists and meet current UK building regulations. Investing in quality insulation loft materials can significantly improve your property’s EPC rating and long-term energy efficiency.
Knauf Loft Roll for Trusted Quality and Easy Installation
We proudly supply Knauf loft roll, one of the UK’s leading insulation solutions. Lightweight, flexible, and simple to cut to size, these rolls are perfect for quick installation between ceiling joists. Made from non-combustible glass mineral wool, Knauf loft roll provides excellent fire safety, sound absorption, and long-term thermal performance. It’s a reliable option for anyone looking to upgrade their loft roll insulation efficiently.
Loft Roll Insulation for Domestic and Commercial Projects
Our loft roll insulation range is designed for versatility. It’s ideal for houses, extensions, and commercial spaces where improved thermal efficiency and comfort are a priority. With a range of thicknesses available, you can meet or exceed building regulations while reducing heat loss and improving the overall sustainability of your property.
Why Choose Loft Insulation from JJ Building Materials
High-performance loft insulation suitable for all roof types
Trusted brands including Knauf loft roll
Compliant with UK building standards
Excellent thermal and acoustic performance
Nationwide delivery and expert support
FAQs
How thick should loft insulation be?
Most UK homes require loft insulation between 270 mm and 400 mm thick to meet current energy-efficiency standards. Adding more insulation can further reduce heat loss.
What’s the difference between loft insulation and roof insulation?
Roof insulation is fitted between rafters or on the underside of the roof, while loft insulation (or insulation loft) sits on the loft floor. Both improve thermal performance, but roof insulation keeps the loft warm while loft-floor insulation keeps the rooms below warmer.
Why choose Knauf loft roll?
Knauf loft roll is a trusted, easy-to-install product made from sustainable glass mineral wool. It delivers exceptional fire, acoustic, and thermal performance, making it one of the most popular loft roll insulation options in the UK.
Check out our other Insulation range at JJ Building Materials.
