Please be aware that due to high demand our delivery lead times may be slightly extended to those published – but rest assured we are doing all we can to get your order to you on time.

Click here for Covid-19 business updates

Welcome to Howarth Online

Want to see what is available in your local branch?

Please enter your postcode below.

Don’t want to give a postcode? Allow us to auto-detect your location

Have an account already? Login here

? Why do you want to know where I am?

We sell thousands of different products which means our stock levels around the country vary.

If you share your location with us we can ensure that the stock levels you see on the site are accurate.

We will never share your location with anyone.

If you proceed without sharing your location with us, we can’t show you accurate stock levels.

Share your location with us

We can’t show you accurate stock levels because you haven’t shared your delivery location with us. Please share your location with us now.

Don’t want to give a postcode? Allow us to auto-detect your location

PIR Boards

  • Price
  • Type of Board
  • Length
  • Width
  • Depth
  • Best Sellers

Category Information

What are PIR Boards? 

PIR stands for Polyisocyanurate and it is a rigid form of thermal insulation that is manufactured from plastic to create a foam.  

PIR was introduced to the market in the 1960s, as an advanced replacement to PUR (Polyurethane) Boards.   

PIR Insulation is suitable for use in a wide range of applications: 

  • WallsEcoliner products are suitable for insulating and drylining internal walls, whilst Eco-Versal offers timber frame walls thermal insulation with both faces including aluminium foil. As the name suggests, the Eco Cavity is used in Cavity/Masonry Walls and are designed to work with the typical dimensions of brick and block. 
  • Flooring – Suitable for most types of flooring including timber, solid and concrete, as well as suspended flooring, it is crucial to ensure that floors are fully insulated to tackle the problem of heat rising. 
  • Lofts – Loft spaces are a void that is the most common cause for heat loss, so choosing a good form of insulation such as PUR or PIR will help to save you money, whilst ensuring that your home is energy efficient. 

Eco-Versal is a popular choice of PIR insulation because it is effective at insulating a wide range of areas of your home including pitched roofing, walls, loft ceiling, and floors.