Insulating around washer drain

I think I got the right approach with trying to insulate washer drain area with XPS rigid board R3 0.5 thickness but now questioning if the XPS should go behind it or in front of the drain . I’m thinking behind , maybe adding fiberglass in front ? correct me if I’m wrong ? Oh and the upper half is Kraft faced fiberglass . I had previously insulated that area and originally was going to insulate the same way all the way down no XPS. Any thoughts ?
climate 2 , in a non air conditioned attached garage ,The wall material behind the washer drain is drywall which makes the interior wall living room of my house
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Replies
You want the insulation on the "cold side" of that drain when you're heating the home. That typically means between the pipe and the exterior side of the wall.
Bill