Apply Primer to Stained Subfloor Areas

What happens here

Carefully open the can of Zinsser B-I-N primer and pour a sufficient amount into the roller tray. Attach the paint roller to the extension pole. Begin rolling the primer over the affected subfloor areas. The video demonstrates applying the primer with sweeping motions, ensuring all stained spots are thoroughly covered. The speaker notes that while it can be sprayed, rolling is demonstrated and implied as a practical method. The primer forms a barrier that seals the odor-causing particles within the subfloor.

Goal: Pour the shellac-based primer into the roller tray and systematically apply it to all pet urine-stained areas of the subfloor using the paint roller and extension pole. Ensure complete and even coverage to effectively encapsulate the odors.