4mm Twinwall Corotherm

Published product information

Detail & guidance

• Available in clear for maximum light transmission

• Light weight glazing sheet

• UV resistant for durability

• Durable and hardwearing

• Minimum condensation risk

• Largely self-cleaning

ideal for

• Cloches

• Plant Houses

• DIY Glazing Projects

Refer to the Corotherm installation guide and installation video for complete installation instructions.

Energy Efficiency - Relative U-Values*

*A Lower U-value indicates increased energy efficiency and thermal insulation

General

• Corotherm 4mm Twinwall is not suitable for roofing, side cladding only

• Make sure the clearly marked UV protected side of the sheet is facing outwards

• Use only low modulus neutral cure sealant and cross-linked butyl flashing tape

• Sheets cannot be joined top to bottom

Cutting Corotherm can be easily cut and will not crack or shatter. When cutting parallel to the flutes a sharp knife can be used but when cutting across the flutes a fine toothed saw is required. For cutting curves use a fine toothed jig saw.

Thermal Expansion When installing Corotherm sheet it is important to allow a sufficient expansion gap at the top end of the sheet. When drilling fixing holes an expansion allowance of 3mm around all fixings is required. Do not fix or clamp sheets too tightly- leave room for thermal movement.

Cleaning Corotherm can be easily and quickly washed with luke warm soapy water and a soft cloth or sponge. Do not use brushes or sharp objects and avoid any abrasives or cleaners of high alkaline nature.