EPA Indoor airPLUS
EPA Indoor airPLUS Construction Specifications, Version 1 (Rev. 04)
What it measures
A US EPA specification that adds indoor-air-quality construction requirements, covering moisture control, ventilation, combustion safety and low-emission materials, on top of ENERGY STAR.
Why it matters for a panel envelope
It is the recognized label for a healthy home, and an airtight envelope is a prerequisite for it rather than a risk to it, provided ventilation is designed in.
Guardian Shield™
Listed among the Shield™ specification's references. Guardian states the panels are inert with no off-gassing and that the system delivers low air infiltration.
Source · 3-Part Specification, 1.3 G; Differentiation sheet · Guardian documents
Published by Guardian Structural Technologies. Last updated .
Drafted from our product literature and published building-science sources. Awaiting our technical review. Confirm any figure against the current product documents or ask us before you rely on it in a design.