Mark the Design Roller
To achieve wallpaper-like repeats, mark the roller with a + at any point and with a − halfway around. You’ll start the first row with the + up, the next with the − up. Insert both rollers in the frame; you should have a frictionless close fit.
Load the Paint
Fill the tray with latex paint in a semigloss finish. Remove the design roller and run the foam roller through the paint, covering it completely. Roll it once on paper to remove excess. Now mount the design roller and roll it on paper to make sure it’s right-side up.
Put Down the First Row
Align the + on the design roller with the top left-hand corner and move from top to bottom, angling the roller at about 45 degrees.
Make a Second Pass
Align the next row with the − on the design roller at the top. Draw the roller down, taking care to avoid a gap between the rows. After three rows, or when the paint begins to fade, repeat Step 2.