Stuv CLAD-21 Manuel D'installation page 12

Floor protection (No R-Value)
The RED area shows the minimum
protection required in the USA;
The BLUE area in addition to the RED area
show the minimum protection required in
Canada;
The GREEN area shows the esthetic
protection which is not mandatory.
Protection de sol (Pas de Valeur-R)
la protection minumale aux USA.
La zone BLEU additionnée à la zone ROUGE
représente la protection minimale au Canada.
La zone VERTE représente la protection
esthétique non obligatoire.
NOTE:
The same floor protection requirement apply on
both sides for the double side (DF) models.
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ROUGE