Insulation and soundproofing
Insulating below slab-on-grade floors
Installing 8 inches of Roxul mineral wool below a concrete slab floor. Insulating below slab-on-grade foundations Why insulate under a slab on grade foundation? For comfort, and…
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You absolutely need to installinsulation under a slab, you would be utterly miserable if you didn’t, you would have frozen feet and an empty wallet from all the money you spend on your heating bills. Here is a page that details it even more-
How much insulation a basement needs
在霜降线以下并没有太大的区别，由于温尼伯的冬天并不“温暖”，地面温度最多只有5或6摄氏度(41-42华氏度)。
Heat always moves from warm to cold, so as long as the ground below your slab is cooler than your slab (which it would be by about 15 degrees Celsius in your case) you will be feeding heat into the ground.
Your basement should be designed by a professional of course, but we would recommend EPS foam, at least 4 inches, better would be 6 or 8 inches if you can, but not more than that.
Below is a thermal model of what a floor would like in a climate similar to yours. The image on the left is uninsulated, and you can see by the extended colour gradient below the concrete from warm to cold is evident to a depth of many feet, while in the images with insulated floors you can see that much more heat is contained by the insulation. Also worth noting is the light red colour of the uninsulated floor which indicates a cooler temperature that the white-coloured insulated floors, which is less comfortable for occupants.
There are alsoinsulated slab on grade form kits for purchasewhere the engineering is all done and the foam acts as the forms, so there are no wooden forms to assemble and disassemble after concrete is poured. Drop us a line at[email protected]if you want more information or a quote.
Insulation is important but I've found that low moisture content in the ground memoe the slab might be more important
like at least 4" of gravel above weeping tile and good drainage
抱歉，你是说平板下面的水分含量低比隔热更重要吗?如果是这样，你指的是什么气候，你是如何得出这个结论的?你应该总是有一个透明的石头床排水，然后在上面铺设绝缘材料。在寒冷的气候中建造一块没有隔热层的厚板将会是一个非常不舒服的厚板，上面的热模拟图像证明了这一点。如果我误解了你的意思，请澄清，谢谢Bunsdad。
你推荐EPS还是XPS ?我读xps优于eps -无吸水率，更高的r值，更长的保温性能保持多年。你是怎么想的?此外，曼尼托巴水电公司指出，在等级板以下保温的价值是不划算的，因为大多数热量是通过墙壁损失的。我的情况会因为我打算做辐射供暖而有所不同吗?
what are your thoughts
当我第一次读到这些的时候，我一开始不相信你还以为你读错了什么。所以我做了一个谷歌搜索，实际上找到了它，让我惊讶和震惊。这是不准确的、非常糟糕的建议。
如果不知道隔热材料和电力的当地成本，或者不知道房屋的寿命，在楼板下面加隔热材料的投资回报率是很难准确确定的。但在加拿大或美国中上各州的任何地方，不对在建新房的地下室地板进行隔热是愚蠢的。在加拿大的马尼托巴省，在混凝土楼板下面增加2英寸的隔热层可能在几年内就能收回成本。
Insulating a slab floor means will result in greater durability, it willprotect air quality by reducing the chance of mold forming, it will save significant amounts of energy and providemuch greater thermal comfort for occupants.
In your case as you plan to install a radiant floor, it is even MORE important to insulate it well as you will greatly increase the temperature differential between the slab and the ground. A typical radiant floor operates between 30 and 50 °C, which means a lot of heat transferred to the ground that will be about 5 or 6 °C.
I have only ever heard from one Canadian with an uninsulated radiant heated slab floor and his heating bills were so ridiculously high that he planned to sacrifice his radiant floor, sacrifice some head room and eat the cost of laying down insulation and additional new flooring.
我们总是建议在平板下使用EPS而不是XPS, XPS的附加R值不值得附加成本，这意味着EPS更便宜每R值，XPS制造有很高的温室气体排放。在马尼托巴省，我们可能会在地板下面放置大约6英寸的绝缘材料，以获得合理的ROI。
Here is our page onthe best way to insulate a basement, there are diagrams there that may help you out.