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
Loft Floor Insulation
You may need to lay insulation across the top of the ceiling joists as well as between them http://www.simplifydiy.com/walls-and-ceilings/ceiling-insulation/loft-insulation