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We needed to find the right time of year where it was not too cold and not too hot. Also, the green fiber website touts the moisture wicking properties of its cellulose. I assume that is not part of your overall. Many homeowners do this as part of remodeling projects, since the walls have to be ripped into anyway.
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a 3/8' thick rough coat of plaster or maybe a rough coat and scratch coat that are very similar in composition, where the rough coat is from the 3/8' mark to the 5/8' mark on your tape. It is possible to insulate lath and plaster walls. a 3/8' thick layer of rock lath or gypsum board lath. Because the exterior walls are concrete stucco, there should be some mitigation. So from the top down and starting at zero on your tape, we have. Once installed, however, I am concerned that the walls might retain more moisture than they were designed for. Thanks for that Apart from a box room and a wee bathroom adding some inches to the exterior walls shouldn't be a problem in most rooms, though as you say it will be a lot of work: there will be a fair bit of stuff like cornices, architraves & fire surrounds to replace/move. This project has been a few years in the making. The walls should hold well through the insulation process. If rooms are big enough you don,t even need to rip out old plaster +lathes-just build a modern house inside it inside it ?Īpply vapour barrier to the frames before you lift them up into place and you got full damp proofing at same time and a gap for the old walls to breath into the roof spaceĪ house that old will be built with a cold roof and lots of drafts in the loft area -so you kill all problems at same timeĪlso will be a job you can do while still living in it ,a bit at a time if you wishįilling the gap with anything will stop the air flow to the roof you must have with this type of old house -you will make more damp problems Maybe a bigger job then you wanted but is the right way to go long term and also a chance to replace electrics etc at same time and have house with modern insulation stds To insulate your plaster walls, the contractor will blow or inject loose fill or foam insulation, and then install proper sealing and a water-resistant barrier. Maybe time to think about getting rid of the lathe and plaster and build stud walls -providing rooms are not very small