Spray foam in ground
我不知道是否有人对此有意见，但我想我会在这里发布。我和我的妻子有一个在四月完成的新房屋……直到我们搬进前2天完成了一场大火，我们的保险公司将一场大火作为全部损失。该房屋在整个过程中被喷涂（闭孔），并具有蓝色道琼斯枪绝缘的上壁。大火在桁架下奔跑并摧毁了内部，但外墙和泡沫完好无损。
Anyway, after tears were shed we are focusing on rebuilding it better than before. The house was demo’d and the amount of foam in the ground is considerable. Does anyone have an opinion or thoughts on the environmental impact of this foam? The Superior Walls had the white foam too that breaks down into many little tiny balls which seem to be everywhere. My wife is concerned that the foam will leach chemicals into the ground or contaminate our well and her garden soil. The builder did his best to contain it but there was just so much he could do. The trucks run over it and there is just so much of it there is no way we can clean it all up. Any thoughts on whether the foam will contaminate the earth?
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Replies
Mel,
There are many types of spray foam. I don't know the answer to your question.
Because you asked about "the white foam that breaks down into many little tiny balls," I did some Googling to learn about polystyrene in the soil.
One researcher looking into the use of polystyrene in planting mixesconcluded that "Physical blending of polystyrene is a problem due to its extreme low density and nonwetability. In addition, perlite enhances total porosity and moisture retention to a greater extent than polystyrene. Dry bulk densities are lower in polystyrene mixes than in perlite mixes but differences are not great. Wet bulk densities are lower in polystyrene mixes due primarily to low moisture retention of polystyrene. Polystyrene should not be steamed because of loss of volume and structure. Soil mix pore space is the key factor in determining the quality of a soil mix. This space provides moisture holding capacity, oxygen supply for roots and space for root development. Since polystyrene products as tested here detract from rather than enhance these properties, their use in growing media must be considered counter productive."
Another web sitenotes, "Foam doesn't break down easily in the environment, which means it's unlikely to degrade in a vegetable gardening container so it's safe to use as filler. Although some chemicals in the foam can leach out if it gets overheated -- such as when you heat a foam cup of coffee in the microwave -- it doesn't leach chemicals under normal temperature circumstances, according to Dr. Andrew Weil, a pioneer in the field of integrative medicine."
最后一点：当土壤受到污染时，清理工作通常涉及将12英寸的表土取出并将其运到另一个位置。然后，被污染的土壤被新的干净表土取代。我认为您要求您的保险公司为这项工作付款并不是不合理的。毕竟，由于火，您的表土与以前不同。