100mm Rigid Insulation Board 1200×2400

100mm Rigid Insulation Board for Roofing & Condensation Control

The 100mm rigid insulation board is designed for roofing projects where a high level of thermal
performance is required. Supplied in large 1200mm × 2400mm sheets and sold per sheet,
it is commonly specified for warm roof constructions, major refurbishments and energy-efficiency upgrades.

At 100mm thickness, this board delivers a substantial improvement in thermal resistance,
helping to maintain warmer internal surfaces within the roof build-up.
By reducing temperature differentials, the risk of interstitial condensation can be significantly lowered
when the insulation is installed as part of a correctly designed roof system.

100mm rigid insulation boards are often used where meeting modern performance targets is a priority,
or where existing roofs are being upgraded to reduce heat loss and improve occupant comfort.
Despite the increased thickness, the boards remain straightforward to cut, handle and install on site,
allowing accurate detailing around penetrations, parapets and roof edges.

As with all roof insulation, successful performance relies on the overall build-up.
Airtightness, vapour control and ventilation strategy should be considered alongside insulation thickness
to ensure long-term durability and moisture control.