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Johns Manville Technical Blog — Insulation & Roofing Insights

In-depth articles on insulation R-values, roofing system selection, energy code compliance, and building envelope best practices from our team of product engineers and technical specialists.

Technical Blog

After a $3,200 Insulation Mistake in Prairie Village, KS, I Only Trust Specialists Who Know Their Limits

A commercial construction project manager with 12 years of experience shares why a Johns Manville insulation order gone wrong in Prairie Village, KS taught him to choose specialists over 'one-stop-shop' suppliers—and why the distributor who admitted his limits won a customer for life. [...]

Technical Blog

Johns Manville Blown-In Insulation and Polyisocyanurate Insulation: An Emergency Maintenance Checklist

A practical emergency-maintenance checklist for property managers and contractors. How to choose Johns Manville blown-in insulation and polyisocyanurate insulation, apply a privacy screen protector, use Sprayway glass cleaner, and how to get rid of gnats in house before a deadline. [...]