Hi everyboy,
Keenan, windows are made with Evergreen strips glued to a plexiglas plate.Texture is painted as you paint a stencil ; see here:
http://www.hgtv.com/hgtv/dc_stamp_stencil_other/article/0,1793,HGTV_3501_1388842,00.html
Costas, I not buy my cardboard, most part as recicled from discarted promotional material: displays, etc
Angela, please, see the previous link
Jim I not utilize carton pluma, this wharehouse is made with 2mm cardboard. I put only a bit of carton pluma in the columns, Are these vertical strips in columns. Around windows I glued strips of 5mm cork for simulate the thick of real building.
For avoiding warp I explain you in spanish and please translate to english:
PAra evitar que se combe ( warping) la pared tienes que reforzar el interior con trozos de algo que sea rígido. puedes utilizar cartón pluma para eso, los trozos tienen que pegarse a la pared por la parte de la "espuma", o sea por donde mide 5mm con cola blanca. tambien debes construir tambien el suelo y el techo eso hace que la estructura este completa y todas las tensiones que produce el pegamento al carton se equilibren.
best whises
Carlos