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For decades, Butler has defined the standard for quality and performance in steel building systems. Through precision-engineered systems and a nationwide Builder® Network, we deliver the consistency and reliability projects demand.

Butler ThermaLiner™ insulation system with layered blanket insulation and liner panel, engineered for thermal performance and interior finish within a complete building system.

ThermaLiner Insulation System

This system elevates the interior while strengthening building performance. It supports comfort, moisture control and stable thermal conditions, delivering dependable performance as part of the building envelope.

The thermal interior surface that performs

An insulated liner system engineered for appearance and thermal efficiency

This system brings clarity and comfort to the interior while strengthening the building from the inside out. It creates a clean, finished surface that elevates how the space feels, while quietly reinforcing protection against temperature swings and moisture over time. By stabilizing interior conditions and supporting consistent performance, it helps the building operate more efficiently and predictably. Integrated as part of a coordinated roof and wall approach, it delivers an interior environment that looks intentional, performs reliably and holds up well beyond occupancy.

Features

Interior liner system engineered for thermal stability, moisture control and a clean appearance.

Steel liner panel forms a finished interior surface and adds rigidity to the wall or roof assembly.

Steel liner panel forms a finished interior surface and adds rigidity to the wall or roof assembly.

The cavity insulation system accommodates up to 13 inches of uncompressed fiberglass blanket insulation.

The cavity insulation system accommodates up to 13 inches of uncompressed fiberglass blanket insulation.

An optional vapor retarder can be installed behind the liner panel to limit moisture migration and protect insulation.

An optional vapor retarder can be installed behind the liner panel to limit moisture migration and protect insulation.

Its thermal performance delivers U-factors between 0.052 and 0.026 and R-Values from R-22 to R-41 depending on insulation configuration.

Its thermal performance delivers U-factors between 0.052 and 0.026 and R-Values from R-22 to R-41 depending on insulation configuration.

An integrated diaphragm bracing liner system provides diaphragm action that reduces the need for added bracing.

An integrated diaphragm bracing liner system provides diaphragm action that reduces the need for added bracing.

Product Specs

Download Color Chart

Interior Finish
Steel liner panel
Vapor Control
Continuous vapor retarder
Insulation Type
Cavity-installed blanket insulation
Installation
Factory-formed components support consistent alignment
System Fit
Integrates with Butler roof and wall systems
Intended Use
Interior-facing thermal and moisture management system
Warranty
Backed by Butler system warranty

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