I'm not sure I spelled that right , but I'll bet you get the drift of what I'm trying to post here. An ongoing theme on here is HOW do I make this roof material? Or who sells it? Any one sell it reasonable? Here is a little doo dad that most anybody can whip up to make all the material they will ever want using Kitchen foil. I reccomend Reynolds Wrap Heavy Duty-- it seems to be the strongest OR I have used & I really like the aluminum Foil repair tape -- kinda like duct tape--- It's really super but a bit shiny so you will have to scuff it with Sandpaper OR etch it for a rusted effect, works on the renoylds wrap as well. I made this from 1/4 X 1/8 brass bar, top & bottom are 1/4 square. You can see the two small pieces of channel in the top half, they are to keep the threaded "pressure bar " from turning, as the ends of the bar are ground flat to slide but not bind or twist & do have to be pretty close tolerance for side to side movement as well. If I recall correctly the threaded rod I used to make this was 2/56 but depending on scale other sizes could work . 2/56 is perfect for HO. To use it you must get the two screws to "mesh" , thats why the stationary screw is slotted -- once its lined up it pretty well stays ok -- I had not used this in 3 -4 years till just now & It needed no adjustment. The whole tool is about 1 1/4 X 1 1/2 excluding the screws. To use it just cut a strip of foil, slip it between the screws & tighten the pressure screws down a bit & gently , steadly pull the foil thru. You tear a few now & then but foils cheap!