Energy-Efficient Duro-Guard® Insulation for Commercial Flat Roofing

Enhance energy efficiency and comfort

Insulation plays a critical role in slowing heat transfer — saving energy and improving occupant comfort. Our portfolio of Duro-Guard insulation solutions offer a variety of products for use with Duro‑Last^® Roofing Systems including polyisocyanurate (ISO) and expanded polystyrene (EPS) insulation panels as well as both extruded polystyrene (XPS) and EPS fan fold products.

Duro-Last ensures every element of the roofing system lives up to our quality control standards.

ISO

Duro-Guard ISO is Duro-Last’s best-selling category of insulation, offering:

Superior R-value – increasing energy efficiency leading to lower monthly operating costs
Fire resistance
Long-term thermal resistance (LTTR) values
No chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs)
Zero ozone depletion potential (ODP)
EPA compliance
Virtually no global warming potential (GWP)
Labor-saving ISO products include tapered panels and hinged target sumps for positive drainage

Duro-Guard ISO products come in a variety of thicknesses and facers.

EPS

Duro-Guard EPS insulation panels are lightweight and resilient, offering:

LTTR values
No CFCs or HCFCs
Zero ODP
EPA compliance
Virtually no GWP

Duro-Guard EPS products come in a variety of thicknesses and densities.

XPS and EPS Fan Fold

Duro-Guard Fan Fold foam insulation is used most often as a recover board when applying a single-ply membrane roof over granulated or smooth cap sheets, smooth built-up roof systems, aggregate-surfaced built-up roofs, aged coal tar pitch roof systems or other single-ply membranes. Fan Fold means it is folded accordion-style every two feet for easier transportation and faster installation.

Duro-Guard Fan Fold insulation: