loft installation

[stevec000]

planning to put down new istallation but is it a good idea to leave the old stuff down and will it keep in more heat my home was built in the sixties and has the original stuff
also any ideas on cavity wall installation my home is mainly timber framed with cladding and tiles on the outside
many thanks

stevec000 Wed 11/02/09 23:01

[paddywak]

I'm having my loft re-insulated next week and the guy who came out said that the old insulation would be left in.
As regards to the cavity wall insulation it would pay to ask around as in parts of the town I live in many of the old colliers houses (built in the 1920s) used a type of bonding that left virtually no cavity, which didn't stop cowboys persuading people to buy (unnecessary] cavity insulation

[buildersmate]

Assuming it is merely fibreglass or Rockwool, there is no reason to remove it. It doesn't deteriorate over time and is the same product with the same properties as the new stuff purchased today. As you say, it will add to the overall insulation performance of the layer.
Regarding insulation of the walls, it doesn't sound as if you have a conventional cavity (air gap between two leaves of the wall). So nothing to fill. There are also issues with installing foam next to timberframe. Suggest you ask a local company to take a look on what options there may be.

[Jugglering]

If you contact The Energy Saving Trust, they can advise you on the wall insulation - apparently there is some sort of insulation that can be fitted where you don't have cavities. Very helpful people and all the advice is totally free! They can also advise you on grants towards the cost of all sorts of insulation (even if you are working and not on benefits).

http://www.energysavingtrust.org.uk/