Spider Insulation

Johns Manville Spider® Plus Formaldehyde-Free™ blow-in fibreglass insulation uses interlocking fibre technology to fill all gaps and voids quickly with no adhesive or netting for a faster installation. Spider Plus provides complete coverage, with no shrinking or settling, resulting in superior thermal performance and sound control. Designed for use in wood and metal-frame construction, engineered wood construction and manufactured homes. Spider Insulation can achieve an R24 in a 5.5” cavity!

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