Designing a timber frame renovation

From Sustainable Building Resource

Insulating an existing Timber Frame Building

The house is a 1970s Prefabricated Timber Frame Bungalow. The structure was prefabricated (well) in Canada and assembled (well) in the Uk and the the british builders got hold of it and only put in 15mm of mineral wool insulation. The studs are 100mm. We tried many ideas but in the end the only way we found to do a proper job was to remove the existing plasterboard and insulate add a good vapour barrier and the board and skim the walls. Pumping in cavity wall insulation was tried but didn't work as the wool stuck to the existing wool. We did look at pumping in polystyrene beads but that was awkward to get and and expensive. The drag was that the insulation cost around £10.00 on a special off at B&Q but the plastering etc cost £200.00 I have blogged the process on insulatetimberwall.blogspot.com/

Still some rooms to do so if you have any other ideas let me know.

Geoff