If you make each piece a component, you will be able to keep the materials separate. Is that a piece of 2x material? with mortar underneath? before you bring the mortar up triple click the 2x material and make it a component. then when you bring the mortar up it will not take on the material of the wood. By making everything in your model a component it will be easier to edit discrete pieces of your model. Hope this answers your question.

Brooks

Hey all, Just wanted to introduce myself, I'm new to the SketchUcation Forum. Just recently finished Grad school in Architecture, I'm an avid SKP user. I've never been involved with an online forum before but would like to learn from and hopefully contribute to the great volume of advice that is posted here. Looking forward to hearing from you.

Regards,
Brooks