120mm EcoTherm Eco-Versal PIR Insulation Board

The 120mm EcoTherm Eco-Versal PIR delivers a comprehensive 5-in-1 performance solution, combining a rigid polyisocyanurate (PIR) insulation core with no fibrous content and dual-sided aluminium foil composite facing.

This PIR Insulation Board suits both new builds and retrofit projects, offering an economical approach to improving thermal efficiency and meeting Building Regulations/Standards whilst reducing CO2 impact. The 120mm Ecotherm's multi-purpose design makes it perfect for pitched roofs, floors, walls, dormer cheeks, and ceilings.

Properties

Manufacturer: EcoTherm®

Thickness: 120mm Insulation Board

Weight: 11.87kg

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 120mm

Material: Polyisocyanurate (PIR)

R-Value: 5.45 m2K/W

Thermal Conductivity: 0.022 W/mk

Vapour Resistivity: 100 MNs/gm

Finish: Aluminium composite foil

Fire Rate: Euroclass F

Core: Fibre free rigid polyisocyanurate (PIR) insulant manufactured with a blowing agent that is CFC/HCFC free and has zero Ozone Depletion Potential (ODP) with a low Global Warming Potential (GWP)

Compressive Strength: 140 kPa when tested at 10% compression to BS EN 826: 2013

Applications: Roofs ǀ Walls ǀ Floors ǀ Ceilings

Features: General Purpose PIR Insulation Board

Applications

This 120mm ecotherm eco versal product works well for both new construction and thermal upgrading of existing structures. Typical uses include:

1. Floors
2. Pitched roofs
3. Cold flat roofs
4. Timber frame walls
5. Solid walls
6. Dormer cheeks
7. Ceilings
8. Room-in-the-roof applications

For floors | Moisture tolerance guidelines for Eco-Versal are as follows:

- The 120mm ecotherm floor insulation must be positioned above the Damp Proof Membrane (DPM) and must not contact ground moisture.

- Where a concrete slab is present or specified, apply a protective membrane of at least 500 gauge thickness over Eco-Versal before applying the screed.

- Our 120mm Ecotherm PIR insulation works with most Underfloor Heating Systems (UFH). A minimum 500 gauge polythene sheet must be placed over the 120mm Insulation Boards before UFH installation. Always follow the UFH system manufacturer's guidance during installation.

For Walls | The guidelines for breathable membrane and vapour control when using 120mm ecotherm Wall insulation are as follows:

- Install a breathable membrane according to manufacturer specifications.

- To reduce condensation risk, fit a Vapour Control Layer (VCL) behind the plasterboard. This may be unnecessary if using insulated plasterboard.

For Roofs | Guidelines for using breathable membrane, vapour control, vertical battens, and insulation layers with Eco-Versal are as follows:

- Fix a Breathable Membrane per manufacturer instructions. On pitched roofs, lay the membrane over rafters and secure with tile or slate laths.

- Assess the requirement for a Vapour Control Layer (VCL) and/or undertile ventilation in accordance with BS 5250:2021 (Code of practice for control of condensation in buildings).

- For all over-rafter installations, secure 120mm ecotherm Roof Insulation using vertical counter battens, enabling traditional slate and tile lath fixing.

- Position the breathable membrane directly on the 120mm Eco-Versal board before installing counter battens. Alternatively, install counter battens on top of the 120mm PIR Board and drape the breathable membrane over them.

- Where lower U-values are needed, consider installing insulation between rafters combined with Insulated Plasterboard such as Ecotherm Eco-Liner on the rafter underside for improved performance.

Info

Explore our full Ecotherm range and refine by thickness or coverage using the filters on the left. For product suitability advice or bulk pricing, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Lowest UK Insulation Prices.