Corner profiles

Corner profiles : solutions pour l'isolation par l'extérieur

Corner profiles, or fabric-reinforced corner beads, reinforce and protect the edges of external thermal insulation: façade corners, window and door reveals, and edging. Made from alkali-resistant PVC with an integrated fibreglass mesh, they prevent cracking and ensure clean, straight corners. Available at trade prices from Centrale ITE, for both private individuals and professionals.

Réf. 121230

10×23 PVC external wall insulation corner bead – Length 2.5 m

The 10×23 PVC external thermal insulation corner bead is an alkali-resistant, pre-fabricated PVC profile designed to reinforce and protect external corners in external thermal insulation systems. Sold in 2.5 m lengths, it incorporates a fibreglass mesh for secure anchoring in the render.

Easy to install in fresh undercoat render, it ensures a clean finish to corners whilst preventing the formation of cracks and mechanical damage.

2,52 € Including VAT

2,10 € Excl. VAT - VAT 20,00%

Réf. 25020T

TOP 180° expansion joint, fabric-reinforced PVC – 2.5 m

The TOP 180° expansion joint profile is a fabric-reinforced PVC profile designed for use in expansion joints on flat surfaces in external thermal insulation systems. Sold in 2.5-metre lengths, it accommodates relative movement between two sections of the façade.

Featuring a glass-fibre mesh, it ensures a watertight joint between surfaces whilst preventing cracks from forming at the joint.

18,35 € Including VAT

15,29 € Excl. VAT - VAT 20,00%

External Thermal Insulation (ETI) corner bead: function and characteristics

Sharp, clean and solid right angles

An ITE corner profile is a PVC angle profile fitted with a fibreglass mesh strip on each side. It is embedded in the base coat, along all the protruding edges of the façade. This is the most exposed part of an external thermal insulation system (ETIS): impacts, ladders, bicycles and thermal expansion all concentrate here. Without reinforcement, the render will flake and crack here first. The PVC corner bead from Centrale ITE (ref. 121.230, length 2.5 m) fulfils three functions:

It reinforces: the integrated mesh extends the façade’s reinforcement around the corner without any breaks.
It protects: the rigid PVC nose absorbs mechanical impacts.
It guides: it acts as a straightedge to ensure a perfectly right-angled and plumb corner, and to adjust the thickness of the render.

According to the LK PVC Premium product data sheet, the PVC is alkali-resistant and the fibreglass mesh complies with ETAG 004, the European guideline for external thermal insulation composite systems (ETICS). The product is certified at the manufacturer’s initiative (certificate no. 060-046640). Models in this range are available with 22 × 22 mm flanges and mesh strips ranging from 80 to 300 mm in width.

External thermal insulation products

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Fitting a corner bracket to external insulation

Applied whilst fresh, invisible once set

The corner bead is fitted into the still-fresh base coat, before the main framework is installed, on the edge of the insulation board.

Prepare the edge. Sand the corner of the insulation so that it is straight and plumb.
Apply adhesive. Apply the undercoat (e.g. A 96) on either side of the corner, over a width slightly greater than that of the mesh.
Position. Place the angle bracket on the corner, press it into the mortar and adjust it to ensure it is plumb and level.
Smooth down. Embed the mesh of the corner bead in the render and remove any excess with a trowel.
Cover. Apply the main mesh so that it overlaps the mesh on the angle bracket, then apply the second coat of base plaster.

Around windows and doors, combine the corner beads with diagonal mesh reinforcements positioned at the corners of the openings. These prevent diagonal cracks. Beneath the lintels, a drip moulding is fitted to prevent water running down the walls. Storage and transport. Store the corner beads in a dry place, at temperatures between +5 and +30 °C, and transport them flat to prevent them from warping.