90mm EcoTherm Eco-Versal PIR Insulation Board

The 90mm EcoTherm Eco-Versal PIR delivers a comprehensive 5-in-1 insulation solution with a rigid polyisocyanurate (PIR) core and aluminium foil composite facing on both surfaces.

This 90mm PIR Insulation Board suits new builds and thermal upgrades to existing structures, offering an economical approach to lowering CO2 footprints and meeting Building Regulations/Standards. The 90mm Ecotherm works across multiple building elements including pitched roofs, floors, walls, dormer cheeks, and ceilings.

Properties

Manufacturer: EcoTherm®

Thickness: 90mm Insulation Board

Weight: 9.19kg

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 90mm

Material: Polyisocyanurate (PIR)

R-Value: 4.09 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 90mm product works well for both new construction and thermal performance improvements to existing buildings. 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 90mm ecotherm floor insulation should only be positioned above the Damp Proof Membrane (DPM). Avoid placing it where ground moisture may make contact.

- Where a concrete slab is in place or planned, lay a protective membrane of at least 500 gauge thickness over Eco-Versal before applying the screed.

- This 90mm Ecotherm PIR product works with most Underfloor Heating Systems (UFH). A minimum 500 gauge polythene sheet must be placed over the 90mm 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 90mm ecotherm Wall insulation are as follows:

- Install a breathable membrane according to the manufacturer's 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:

- Secure a Breathable Membrane following manufacturer guidance. For pitched roofs, lay the membrane over rafters and secure using tile or slate laths.

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

- For all over-rafter applications, fix the 90mm ecotherm Roof Insulation with vertical counter battens. This traditional fixing method supports slate and tile laths.

- Lay the breathable membrane directly on the 90mm Eco-Versal board before installing counter battens. Alternatively, install counter battens on top of the 90mm PIR Board and drape the breathable membrane over them.

- Where low U-values are essential, consider installing insulation between the rafters and using an Insulated Plasterboard such as Ecotherm Eco-Liner on the rafter underside for improved practicality.

Info

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