Energy & Interior Environments - OSSC Chapters 12 & 13 Chapter 13: Loose fill Insulation on Sloped Ceilings -- UBC/13/#1 - 3/1/99 (PDF Document, 8kb) Chapter 13: Wall Insulation for Shell Buildings -- UBC/13/#2 (Rescinded Nov. 1, 2005) (PDF Document, 62kb) Chapter 13: Converting an Un-conditioned Space to Conditioned Space -- UBC/13/#3 - 3/1/99 (PDF Document, 9kb) PDF Information Some of the links on this page are to PDF documents. To open PDF files you will need Adobe Acrobat Reader installed on your computer, it is available for free from Adobe.com.