EXTERNAL WALL INSULATION ANCHORS FOR FASTENING TO MASONRY ISULFIX

ISULFIX: how to install insulation panels without thermal bridges using insulation anchors

ISULFIX insulation anchors are specifically designed for fastening insulation panels onto masonry in external wall insulation systems. The double-expansion technology with pre-assembled steel nails allows fast and versatile installation, ensuring mechanical stability without compromising the thermal performance of the insulation system.

Available in different sizes for various insulation thicknesses, these external wall insulation fixings provide a certified solution for applications on traditional insulation panels and on particularly soft insulation materials when combined with an additional washer.
Thermally insulated fastening is essential to maintain the continuity of the insulation barrier and reduce heat loss concentrated at the anchoring points.
The double-expansion system ensures uniform load distribution across the surface of the insulation panel, reducing the risk of damage and guaranteeing long-term adhesion even on irregular masonry substrates or highly deformable insulation materials.

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Description

Certification and performance of ISULFIX insulation board fixings

ISULFIX insulation board fixings are manufactured in Ø8 PVC with double expansion, a technology that ensures secure fastening on concrete, solid masonry and hollow masonry. CE certification in accordance with ETA, with certified resistance values ensures documented reliability and compliance with European standards, a critical requirement for compliant external wall insulation systems in public and residential buildings.
The pre-assembled steel nails allow rapid installation without additional components during fitting, reducing installation time and minimising the margin for error on site.

ISULFIX performs effectively in service classes SC1 and SC2, ensuring mechanical stability and durability in indoor and outdoor environments protected from driving rain.
These screws for external wall insulation can be used together with the additional THERMOWASHER plate for applications on particularly soft or deformable insulation materials, ensuring uniform load distribution and protection of the insulation panel.
Thermally insulated fastening technology is the ideal choice for external wall insulation systems, where thermal continuity is a key design factor for the energy performance of the building envelope.

When is an additional washer required for external wall insulation fixings?

An additional washer is required when using ISULFIX on particularly soft or deformable insulation materials to evenly distribute the load and protect the insulation panel from concentrated pressure at the anchoring point. The washer increases the contact surface area, reducing the risk of tearing or permanent deformation of the insulation material over time.

Low-density insulation materials such as expanded polystyrene, mineral wool and soft polyurethane foams are subject to deformation under concentrated loads. The additional washer transforms the point load of the insulation board fixing into distributed pressure, maintaining the integrity of the insulation material.

ISULFIX

CODE	d₁ [mm]	L [mm]	pcs.
ISULFIX8110	8	110	250
ISULFIX8150	8	150	150
ISULFIX8190	8	190	100
ISULFIX90	90	-	250

EXTERNAL WALL INSULATION ANCHORS FOR FASTENING TO MASONRY ISULFIX

ISULFIX: how to install insulation panels without thermal bridges using insulation anchors

Certification and performance of ISULFIX insulation board fixings

When is an additional washer required for external wall insulation fixings?

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