I am looking into insulating my solid walled extension (of a 1936 cavity walled house – not sure of the date of the extension) in the next few months to make the bedroom more habitable for a new arrival!
Please see //www.diynot.com/forums/viewtopic.php?t=74120 for details on the construction of the extension - slightly odd.
I have looked at the various techniques and have come across the woodfibre boards method (internal) - e.g. Pavatex/Pavatherm/Diffutherm. These are supposedly good for the environment (recycled materials, clean energy used in production and they lock up carbon), breathable (no vapour barrier needed and no special ventilation required), resilient to damp (work even when damp and can act as a moisture buffer to keep internal air quality good), good acoustic indulation properties, improve the thermal mass of the structurem, and are non-toxic. They are more expensive than conventional materials though and require special plaster to maintain the breathability.
Has anyone here had any experience with these?
Should I just go the conventional route? Laminated thermal plaster board or separate insulation + plaster board? What thickness?
Can anyone give any advice on how I should proceed with respect to the construction of my extension walls? i.e. should I remove all existing plaster and liner and start from inner face of brick? Would I still need the vents or could I block these up?
If I have a penetrating damp problem would woodfibre be OK to use (breathable) or would I need to fix the damp problem first? Or maybe maintain a vented cavity?
Is DIY installation possible? I am fairly competent at general DIY but I have never done dry-lining before (I would get someone in to do the plastering anyway)? Would a general builder be able
Any advice would be appreciated.
Please see //www.diynot.com/forums/viewtopic.php?t=74120 for details on the construction of the extension - slightly odd.
I have looked at the various techniques and have come across the woodfibre boards method (internal) - e.g. Pavatex/Pavatherm/Diffutherm. These are supposedly good for the environment (recycled materials, clean energy used in production and they lock up carbon), breathable (no vapour barrier needed and no special ventilation required), resilient to damp (work even when damp and can act as a moisture buffer to keep internal air quality good), good acoustic indulation properties, improve the thermal mass of the structurem, and are non-toxic. They are more expensive than conventional materials though and require special plaster to maintain the breathability.
Has anyone here had any experience with these?
Should I just go the conventional route? Laminated thermal plaster board or separate insulation + plaster board? What thickness?
Can anyone give any advice on how I should proceed with respect to the construction of my extension walls? i.e. should I remove all existing plaster and liner and start from inner face of brick? Would I still need the vents or could I block these up?
If I have a penetrating damp problem would woodfibre be OK to use (breathable) or would I need to fix the damp problem first? Or maybe maintain a vented cavity?
Is DIY installation possible? I am fairly competent at general DIY but I have never done dry-lining before (I would get someone in to do the plastering anyway)? Would a general builder be able
Any advice would be appreciated.
