热质量容量是否受平铺过程影响？
I’m wondering if you can lay tlle over a concrete subfloor without compromising the thermal mass capacity of the concrete.
使用DITRA之类的解偶联系统会产生负面影响吗？我们应该考虑使用沙子吗？
Our building site has great orientation for passive solar, but we’d prefer tile versus a finished concrete floor.
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答复
I would say the Ditra would have an insulating effect and would not allow as much thermal storage in the slab. There is nothing wrong with tile laid directly on concrete providing all precautions are taken regarding moisture proofing. Insulation under the slab is also needed to hold the heat. Darker colored tile will absorb more direct beam energy than lighter colors, I believe, light colors would be more reflective, heating the air instead. Be thinking about radon and methods to avoid it.
Thanks - My concern is about the tiles or grout eventually lifting/cracking without something to provide a little flexibility. It seems like most tile installation instructions bring that up.
Tile and grout work loose if the underlayment flexes, I can't think of a more durable surface than a concrete slab for holding tile, try removing it sometime. Tile, if installed properly and as long as what's underneath is solid, will last a long, long time.
根据制造商的描述，ditra是一种解耦，可允许轻巧的子结构（例如木地板）和瓷砖饰面之间的差异运动。道格是正确的，它在瓷砖和混凝土等重量级材料之间完全不必要，您应该为其他事物节省资金。
But were you to install it the effect on the thermal capacitance of the concrete would be barely measurable. If 1/8" of Ditra were that good an insulator I'd be putting it in my walls!
我会不同意那些说您在混凝土上铺平时不需要脱钩的人。这完全是错误的，如果您打算使用被动太阳能（尤其是在平板上的阳光下），则需要使用解偶联膜。
Concrete often develops cracks and the uncoupling membrane reduces the likelihood of those cracks transferring to the tile. It will also reduce the stress of uneven thermal expansion on a passive solar floor. You will need to pay attention to expansion joints in the tile as well.
Ditra与传热效果很好。我在ditra下有热垫，加热瓷砖没有问题。如果您不想使用ditra，则可以使用平坦的膜进行解耦，例如来自Noble。
There is good green building advice here but if you want good tile advice head over tohttp://www.johnbridge.com
我认为事实在这里的某个地方。您需要“漂浮”一块平板，以使其独立于基础上缩小，并且需要安装控制接头，以定期进行收缩裂缝，这取决于许多有争议的变量，但肯定在Corners和每10-15端肯定会发生。在大区域的奔跑中脚。在辐射板中安装控制接头时，用混凝土锯（到管道）将其切入的风险是这样，因此我们通常使用钢钥匙路膨胀接头。有些人更喜欢拉链条，许多不同的方法可以使用，您只需要在固化过程中收缩，尤其是在最初的72小时内。在我看来，在倒入平板后每天砍伐控制接头是有风险的，这就是为什么我喜欢在倒入之前将钥匙路放入。
这会影响瓷砖，因为，一旦您可以准确预测平板可能在哪里破裂，您只能将解偶联膜放置在这些位置。（这具有节省膜成本的附带好处）我们只是在膨胀关节上的区域中供您使用一条ditra，贵族或卷的黄金或任何膜。
詹姆斯是完全正确的。只要混凝土不裂缝，瓷砖就可以了，而威廉是正确的，即混凝土不可避免地会破裂，并且膜对传热的影响很小，因为它可以忽略不计。
To follow up on Michael's good comments you can see how Noble recommends to apply one of its membranes over expansion joints or concrete cracks.
http://www.noblecompany.com/Portals/0/PRODUCT%20INFO/Product%20Descriptions/NobleSeal%20CIS%20Product%20Decription%200409.pdf
Michael raises a very important point about leaving an expansion gap around the perimeter of the tile floor. If you are placing baseboard over the tile, leave a 1/2 inch gap around the entire perimeter. Because tilers will inevitably fill some of this gap with thinset, you can place 1/2 inch foam weatherstrip around the room or tack in a strip of 1/2 inch plywood around the room and pull it out after the tile is grouted.
Search for tile "tenting" to see what can happen without the appropriate expansion gap around a tile floor. A 1/4 inch gap may be fine unless the floor is very large.
Thank you - this is very helpful. You anticipated my next question about anticipated cracks in the cement and it's impact on the tiles. Thanks also for the recommended links.
我认识一个具体的承包商，可以保证他的工作
保证会破裂
Christa,
A poorly prepared concrete pour will have problems later on that no "membrane" is going to cover, beware of tile product salespeople. Perimerter expansion material is fine, in fact you should have a thermal break between the floor, the foundation wall and footing and have insulation under the slab. Without insulation under the slab your idea of solar thermal storage is a waste of time. Zip Strip or periodic sawcuts will help with concrete surface tension.