125mm Unilin Rafterlock Variable Width Pitched Roof PIR Board - Thin-R XT/RLOC - 1200mm x 370mm

125mm Unilin Rafterlock Thin-R XT/RLOC is a high‑performance pitched roof insulation board comprising a rigid Polyisocyanurate (PIR) core between low emissivity foil facings. Its unique variable‑width design ensures a snug fit between rafters, delivering excellent thermal efficiency with reduced installation time and waste. Unilin Rafterloc Thin-R XT/RLOC Pitched Roof Board offers a specification‑ready solution for pitched roof insulation, combining flexibility, efficiency, and compliance in one product. It is particularly well‑suited to projects requiring tight fitting insulation with minimal waste and rapid installation.

CHARACTERISTICS

• Designed for sloped/raftered roof constructions
• Variable width pitched roof insulation board
• Rigid PIR insulation with low emissivity foil facings
• 20–30 mm width variation for tight fitting between rafters
• Flexible adjustment margin eliminates gaps and thermal bridging
• PIR core with foil facings achieves high U‑values, supporting compliance with Building Regulations
• Width variation minimises off‑cuts and improves material utilisation
• Tight fit between rafters reduces fitting time compared with standard boards
• Provides consistent insulation quality across pitched roof systems
• Reduces labour time and material wastage
• Ensures a continuous insulation layer with minimal thermal bridging
• Variable width feature adapts to site conditions and rafter spacing

APPLICATION

• Ideal for pitched roof insulation where efficiency and compliance are critical.
• Suitable for upgrading roof insulation without extensive structural alteration.
• Helps achieve improved thermal performance in line with current regulations.

INSTALLATION

• Position boards between rafters with foil facings exposed as specified.
• Adjust the variable‑width edges to achieve a snug fit against rafters.
• Ensure boards are flush with rafter faces to maintain a continuous insulation layer.
• Stagger board joints to avoid continuous thermal bridges.
• Leave a small expansion gap (typically 2–3 mm) at abutments if recommended.
• Seal perimeter joints and service penetrations with approved tape or sealant to maintain airtightness.
• Overlay with plasterboard or internal lining as specified.
• Ensure vapour control layers are correctly positioned if required by the design.

CERTIFICATION

• ISO 9001:2015+A1:2024 - Quality Management Systems
• ISO 14001:2015+A1:2024 - Environmental Management Systems