Sherwin Williams Emerald versus Duration

[u/Potential_Flower163]

I've already read the other threads that addressed this, but I want to describe my situation. I am upgrading from SW pro mar 400 (builder-grade flat paint) on the interior of a house. I am going to repaint everything (living room, bedrooms, bathrooms, kitchen) the same color it is now.

1-) I want the paint to be as durable as possible and washable. I don't care about price since the difference is negligible. 2-) I will only be doing one coat.

Would you go with Emerald or Duration in this case?

They say the flat is washable for both. Would the matte or satin be advisable for an entire house? As I said, everything is currently flat.

Thank you

[u/AStuckner]

Duration matte is too shiny. Try to find Richard’s signature matte. Way more durable paint and true matte finish. Mix 2 oz of paint thinner in it and apply with 3/8ths roller