Plinth insulation – Styrodur 2800 C XPS

Product overview

Where is it used?

• At plinth level (300mm or less above ground level) and below on any External Wall Insulation project.
• Around large stone window sills or other projections that are likely to give high levels of splash back.
• Below ground on foundation walls or basement walls.

How is it used?

• Styrodur boards can be installed directly in to the aluminium plinth starter tray if being used on the base of a timber frame. Ensure the joint with the wood fibre boards is glued thoroughly to prevent cracking along this joint.
• On masonry plinth, Styrodur 2800C should be at least adhesively fixed to the plinth by applying a 5mm layer of the appropriate contact mortar to the back of the board before pressing firmly against the clean masonry surface.
• In plinth areas where impact is likely, masonry fixings such as UdiASSEMBLY masonry fixings, should be used in addition to the adhesive above.
• Installation details for plinth installations can be found here

How much will you need?

The Styrodur boards are 1250 x 600mm and they cover an area of 0.75 m² per board. Allow around 5% for wastage, depending on the complexity of the area to be insulated.