Problem with Dupliface

Hey everyone I’m having a problem with duplifaces. I’m trying to place tiles on a roof and am wanting to duplicate the tile on the surface of the roof.

This is the result:

The tile ends up distorting very badly.

Any help is great!

for tiles use the array modifier
should work

can you upload file here if < 1 MB


Usually clear Scale, Rotation helps - Alt-S, Alt-R. Tile needs to be at origin.

Yep I did end up figuring it out. The scale was wonky as eppo suggested. So applying scale to the roof faces worked.

Thanks for the help.