Johns Manville 90005706 Rigid Insulation Sheet Fsk

Product Description

The JOHNS MANVILLE 90005706 is a rigid insulation sheet designed for commercial and residential thermal and acoustical applications. Measuring 48 inches wide by 120 inches long with a depth of 1.5 inches, this sheet is faced with FSK (foil-scrim-kraft) laminate. The FSK facing provides a durable vapor-retarder surface and reflective barrier suited for duct wrap, wall cavity, and mechanical room insulation work. Installers in HVAC and general mechanical trades rely on this format for high-coverage runs where consistent sheet dimensions reduce cut waste and speed installation.

This insulation sheet is used in a wide range of commercial and residential construction and retrofit scenarios. Typical applications include interior wall assemblies, crawl space installations, mechanical room lining, and ductwork insulation. The palletized sheet format is well suited for new construction projects or large-scale retrofits where job-site delivery of full-size sheets is practical. HVAC technicians and insulation contractors are the primary installers of this product type.

Key Features

• FSK facing provides an integrated vapor-retarder and reflective surface
• Full 48 x 120 inch sheet dimensions maximize coverage per piece
• 1.5 inch depth suitable for standard thermal insulation applications
• Palletized format supports bulk job-site delivery and handling
• Rigid construction holds shape during installation without sagging

Compatibility

Designed as an OEM-style rigid insulation sheet for use in commercial and residential mechanical, wall, and ductwork insulation applications where FSK-faced rigid board is specified.

Installation Notes

Installation of rigid insulation board should be performed by qualified HVAC technicians or insulation contractors in accordance with local building codes and manufacturer guidelines. Shut down any affected mechanical systems before working in enclosed spaces. Use appropriate cutting tools for clean edges and ensure all seams and joints are sealed with approved tape compatible with FSK facing. Follow applicable energy codes and fire rating requirements for the specific installation assembly.

Technical Specifications

• Length: 120 inches
• Width: 48 inches
• Depth (Thickness): 1.5 inches
• Material / Facing: FSK (Foil-Scrim-Kraft)

Standard Information

• Brand: JOHNS MANVILLE
• Manufacturer Part Number: 90005706