[ZMonet]

I purchased some 7 mm rigid core luxury vinyl flooring. I intend to install it over a concrete slab, using 1 mm Floor Muffler LVT Ultraseal Underlayment. My question is what do I do about the concrete expansion joint in my concrete slab? Do I need to fill it in with cement patch or since this is rigid core can I go right over it?

Thanks for any help!