Ceiling Insulation
Put simply uninsulated ceilings cost you money and nowhere is this more noticeable than in your loft space http://www.simplifydiy.com/walls-and-ceilings/ceiling-insulation
Wall & Ceiling Plaster
This is used for the top and final coat on a wall or ceiling as it produces a fine smooth finish when it has been polished http://www.simplifydiy.com/walls-and-ceilings/plaster
Part B: Fire Safety
In this paragraph internal linings means the materials or products used in lining any partition wall ceiling or other internal structure http://www.simplifydiy.com/building-regulations/part-b