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Can you insulate an existing slab on grade floor?
Posted by Patrick Berkeley
Dec. 31, 2020, 10:14 p.m.
Foundation and basement improvements
5 Responses
你的板子造好了吗?它不仅要隔热,而且要防止地面湿气的侵袭,使用蒸汽屏障或足够数量的EPS泡沫绝缘材料都可以防止湿气从地面向上迁移,从而防止霉菌的滋生。我有几个问题,我们可以提供更多帮助——你在哪里建设?在楼板下面有什么或计划在楼板下面有什么(是否有蒸汽屏障,有多少隔热),它会被加热吗?
Here are a few pages onhow to build a slab on grade properly. There you will find all you need about slab on grade insulation and vapor protection.
Hello and thanks for responding to my question. The house is not yet started and will be built in Fort Mill, South Carolina. I know that the builder includes a pebble or a similar foundation before laying concrete. I think they use a vapor barrier. I asked for the building specs but perhaps that is not something a builder likes to give out, as I have not received them. Thanks for the link.
We have an old cottage so no vapor barrier under cement but there is tar paper over cement. Replaced some tar paper water proof painted cement and installed vapor barrier installed furring stripes and covered with plywood. Checked a year later before redoing the rest of the cement and found mildew under plastic vapor barrier. Water table is high being near the lake. So do I just remove tar paper, clean floor and put down vapor barrier, seems like this might be a recurring problem years down the line? Thanks for any advice.