---
title: Resilient Flooring
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label: Maximum Slab Internal Relative Humidity (ASTM F2170)
type: range
−unit: % RH
+unit: '% RH'
options:
min: 75
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label: Attic Stock Quantity
type: range
−unit: % of installed area
+unit: '% of installed area'
options:
min: 2
…8 unchanged lines
## Attic stock allows the Owner to repair damaged areas with material from the same dye lot as the original installation, which is essential because a later-purchased replacement will be from a different dye lot and will not match. {note}