地下室地板绝缘
格温·史密斯·唐克里尔（Gwen Smith-Dockrill）|Posted inGBA Pro Helpon
我房子的一部分仍然有一个大约4 1/2至5英尺高的空间。我在地球上放了一张沉重的塑料，然后添加了一些破碎机粉尘以将其固定在适当的位置。不用说，这并没有阻止水分从地面上升起。空间总是潮湿的，因此上面的房间在温暖的月份总是有潮湿的气味，冬天的地板非常寒冷。
I did put 1-inch white styrofoam on the outside walls but that made no discernable difference. Is there any way to insulate the floor without pouring concrete?
你有什么建议我可以什么do to insulate the ceiling in this space to try and make the floors above warmer in winter?
感谢任何建议。格温
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Replies
格温,
In order, here are the steps necessary to address a damp crawl space:
1.验证房屋周围的分级是否远离基金会，而不是向其倾斜。根据需要进行更正。
2.如果房子在山上，请在房屋的上坡侧创建一个牛le，将水从粉底上移开。
3.安装连接到导体管道的屋顶水槽，该管道将屋顶水从粉底带走。
4. If the crawl space is still damp, it may be necessary to install a French drain around the inside perimeter of the crawl space. This trench should have a perforated drain pipe leading to a sump. The trench should be filled with clean crushed stone.
5.水箱需要密封盖。将连接到管道连接的污水泵将水从粉底传递到下水道管道中。
6. Install a heavy-duty plastic sheet on the crawl space floor, with taped seams. Secure the edges of the plastic to the crawl space walls with a pressure-treated batten secured to the foundation wall with masonry anchors.
7.在边缘托梁上执行空气密封工作。密封所有爬行空间通风口。
8.用几英寸的XP，EPS，Polyiso或闭孔喷雾聚氨酯泡沫将墙壁隔离。根据当地建筑代码的要求，用热屏障保护泡沫。
格温,
You don't indicate what kind of foundation walls you have. If the floor is dirt, I suspect that the walls are dry-stacked stone and leak like a sieve.
You can follow all of Martin's recommendations to try, possibly in vain, to make such a cellar dry - or you can vent the space and insulate and seal the floor above, providing the floor framing is not covered with wires and pipes and there is no ductwork in the cellar.
保持温暖和干燥的空间的最佳方法是在地板托梁下安装2英寸箔纸的多氰酸固酸刚性泡沫板。这既可以用作导电隔热层，并且还将从冷地板上放射地板，此外还可以放射地板。如果将所有接头都粘在一起并用罐装泡沫密封，则充当有效的蒸气屏障。
Thanks so much for the advice. I realize that I probably did not provide enough information in my initial question. I don't believe there is any water getting into the basement from the rain. I did have the original concrete block foundation removed about eight years ago and replaced with solid concrete foundation walls.
这些年来，我的房子有很多附加组件，而原来的部分则在地下室有一个混凝土地板，那里的炉子和热水罐都在那里。最近，我在地下地下的地下门中添加了一个通风孔，还将通风孔放在炉子区域地下室的一个小窗口中，以便希望在整个空间中吸收一些空气。我不确定这些通风口是否应该全年开放，或在冬季关闭。
I am wondering if there would be any benefit to putting rigid styrofoam on top of the earth floor and maybe something to hold that in place as a way of keeping the moisture from coming up from the ground. The space is not used for any purpose, so there would be no need to walk on it, except for a path directly through the doorway and into the furnace area.
I had thought of insulating the ceiling above the earth floor but have been told that if I were to put batts of fibreglass insulation on the ceiling and then use a vapour barrier to hold it in place that it would trap moisture and the floor above may rot. Someone else advised that I should do the batt insulation and use Tyvek or house wrap that is not moisure-proof to hold the insulation in place and possibly cut down on the coldness.
罗伯特（Robert）对箔纸产品的想法也许是最好的计划。我认为这不需要任何蒸气屏障或建筑纸。我决心今年冬天有一个温暖的厨房地板，并感谢我收到的建议。格温
格温,
您仍然忽略了最重要的信息：您在哪里，您的气候在哪里？
但是有几件事：您最初提到了“白色泡沫聚苯乙烯”。白色泡沫板是EPS，而不是XPS，这是专有材料造粉瘤所制成的。EPS比XPS更具渗透性水蒸气，但也不是真正的蒸气屏障。地下室的大多数热量损失都是通过地面墙壁而不是进入更深的地球，因此绝缘地板不会使房屋保持温暖无济于事。耐用的塑料薄膜，例如Tu-Tuf，在地面上，并在墙壁的底部密封填充填充物将照顾地面水分，但是您必须在人行道上放一些东西，例如沙子或砖块或铺路块。
If the furnace is in the basement, then you don't want to leave the vents open in the winter, and often humid summer air will cause condensation in a cold basement. So open vents may be counterproductive unless it's more humid in the basement than outdoors in the summer.
玻璃纤维板是在潮湿的地下室中放入地板框架中的最糟糕的事情，而多蒸气屏障和房屋包装都不明智，因为它们都捕获水分 - 前者捕获所有水分和后者的液体液体水分，让我们允许。水蒸气通过。
Short of damproofing and insulating the entire basement, including all walls, sills and rim joists, the simplest and most effective solution to both dampness and cold is to use 2" foil-faced polyisocyanurate insulation board (Thermax, High-R, etc) under the floor joists, well sealed at all joints and edges. The foil is a perfect vapor barrier, an excellent barrier to radiant flow between the floor and the ground below, and high-R insulation.
In any case, sealing the earthen floor is essential. You could also put down a vapor barrier and pour a thin 2" layer of concrete to make it durable and walkable.