I'm looking to cheaply insulate my detached double garage. It's a single brick wall construction with a tiled pitched roof with a membrane underneath. I use the space in the pitch for storage so don't really want to loose that.
I'm just doing the basics at the moment. Insulating the single skin up and over doors and sealing any gaps around them. I've just started using a desiccant(sp?) dehumidifier to reduce RH in low winter temps. It's quoted to work down to 1 degree Celsius. The unit exhausts air 10 degrees above ambient so has some heating value too. I'd like to further insulate the garage and thought the roof might be a good place to go next. Due to the arrival of my baby girl last week, the work must be cheapg and not labour intensive.
I know little about construction and regs so though I should ask before I start planning! I guess something like rigid foam sheets would be cheap, but do regs/basic safety require that I board over them with something to act as a fire retardant? I use the garage to store an old car I've restored, and I don't really want fibreglass fibres etc floating all over the place. I've sealed the garage floor with specialist paint and white washed the walls with exterior masonry paint.
Thanks for any help
Forgot to say that I presume that I can't just stuff silver foil wrapped fibreglass insulation between the rafters as an air gap is require under the membrane?
I'm just doing the basics at the moment. Insulating the single skin up and over doors and sealing any gaps around them. I've just started using a desiccant(sp?) dehumidifier to reduce RH in low winter temps. It's quoted to work down to 1 degree Celsius. The unit exhausts air 10 degrees above ambient so has some heating value too. I'd like to further insulate the garage and thought the roof might be a good place to go next. Due to the arrival of my baby girl last week, the work must be cheapg and not labour intensive.
I know little about construction and regs so though I should ask before I start planning! I guess something like rigid foam sheets would be cheap, but do regs/basic safety require that I board over them with something to act as a fire retardant? I use the garage to store an old car I've restored, and I don't really want fibreglass fibres etc floating all over the place. I've sealed the garage floor with specialist paint and white washed the walls with exterior masonry paint.
Thanks for any help
Forgot to say that I presume that I can't just stuff silver foil wrapped fibreglass insulation between the rafters as an air gap is require under the membrane?