Pultruded FRP Cladding Attachment Support System

Strongwell’s STRONGIRT is the ideal continuous insulation (CI) cladding attachment support system. This all-FRP (fiberglass) pultruded composite uses a custom fire-retardant resin system and unique laminate design to offer superior pull out strength, excellent thermal efficiency, and the ability to work with any non-proprietary insulation (no routing or fabricating of rigid insulation is required).

The geometry of STRONGIRT offers self-draining to clear rainwater, and weep holes can be pre-fabricated or added in the field for additional drainage needs. The product has been engineered for strength and stiffness to support cladding, insulation, and wind loads, while offering a simple, durable, cost-effective solution for installers.

Available for insulation thicknesses from 2″ to 6″ (in 1/2″ increments), STRONGIRT can be used with all non-proprietary insulation types and installed vertically or horizontally depending on construction requirements. In addition, the all-FRP system offers excellent pullout strength, superior corrosion resistance, improved thermal efficiency, and simplified in-field fabrication over traditional metal cladding attachment systems.


Strongirt can be installed vertically or horizontally depending on construction requirements. Shown horizontally below: