更多的Q&A Spotlight
唐·洛伦佐（Don Lorenzo）被指控翻新一座100年历史的西雅图房屋，其主人希望他肠内装饰，但毫发无损地离开了建筑物的外部。外墙没有绝缘，没有护套，也没有水损坏的迹象。
洛伦佐写道：“主人想挖内部装饰，并在离开壁板的同时从内部隔离内墙。”这个最近的问答帖子。“Of course, when I insulate these walls I want to avoid creating new moisture problems.”
Lorenzo has been guided by an article about a similar situation in whichMartin Holladay recommendsan air space between the back of the siding and the new insulation. Lorenzo’s twist on this idea is to use a Dörken product called三角洲立即在壁板T0的后面创建了一种内部雨屏，他说这将完成同样的事情。
Dörken的技术团队建议这种方法，但Dörken并未正式认可使用Delta-dry。
洛伦佐补充说：“另一件事让我困扰着我，我不完全理解水在雨屏下滴下并到达底部板上后如何退出墙壁。”“与A不同typical rainscreenin new construction, there are no weep holes. I think the answer is ‘the same way it always has’—it collects on the plate until it evaporates or leaks out through gaps in the siding. Does that sound right?”
洛伦佐（Lorenzo）对反馈的呼吁是我们开始焦点的地方。
What you get is higher cost
What Holladay’s article suggested was to create an air gap by applying strips of wood in the corners of the stud bays, then adding a layer of rigid foam and, finally, air-permeable insulation in the form of open-cell…
每周通讯
Get building science and energy efficiency advice, plus special offers, in your inbox.
9 Comments
"Generally, I try to approach this type of work by recognizing that some day the siding will probably be replaced. Any work we do should lend itself to that process by being easily removed or added to."
That's very good advice - which is useful even with new construction. Anticipate the eventual replacement of the building components that will wear out first and make that process easier.
The concept of "shearing layers" is one of the most practical ideas I encountered in architecture school... and one that we probably didn't spend nearly enough time on.https://en.wikipedia.org/wiki/shearing_layers
Brendan,
How Buildings Learn is a fantastic read for anyone interested in architecture or Construction.
Unfortunately I went to an architecture school that imparted next to no practical knowledge, and I've been playing catch-up ever since.
哦，建筑学校。我必须小心不要开始咆哮！阅读建筑物如何学习绝对是例外，而不是实际知识方面的规则！这是一位教授的个人建议，而不是分配给我全班的东西，尽管当然应该是！
Brendan,
从那时起，肯定的事情一定有所改善。John Straub和Joe Lstiburek对加拿大学校的建筑科学如何教授。希望其他许多胡说八道消失了。我最好也停下来。
The detail pictured above was a typical detail for retrofitting historical houses in NOLA after hurricane Katrina. The building code officials would not allow any original siding or trim removal.
Good to know, Armando. If you have any more info on that, please send it my way.
Thanks again to everyone who took the time to weigh in on this!
Ben的Tyvek Weep系统似乎是合乎逻辑的，只要Tyvek的底部在壁板板之间不可见。
垫片和刚毛的泡沫方法似乎是GBA上的共识。但是，我们的承包商最终可能会选择喷雾泡沫方法，在这种情况下，我们只需要选择产品来创建气隙即可。
似乎陪审团就涉及泡沫渗透性的重要性，但我倾向于同意那些认为这不是关键问题的海报。
Something else we discussed in the Q&A was the potential for the foam insulation to absorb water that gets past the siding. My understanding is that the risk is pretty low, and it's probably overkill to add an additional layer (e.g. Tyvek) just to protect the foam. Martin has an old article that's probably relevant:
//m.etiketa4.com/article/using-rigid-foam-as-a-water-resistive-barrier
最后，我想提到Kiley的这篇文章，我在最初的研究中忽略了这篇文章。她的帖子添加了一个壁炉细节，并提议启动壁板的背面以进行额外保护。
//m.etiketa4.com/article/managing-water-and-insulating-walls-without-sheathing
我目前正在翻新一座120年历史的新英格兰房屋，绝对担心隔离旧墙壁和捕获水分。事实证明，以前的所有者已经做了一些涉及标准玻璃纤维棒的工作。但是，这是处理任何墙壁水分的最佳选择吗？后来，我们意识到水平覆层和雪松壁板之间还有一个Tyvek Rain屏幕。在意识到有雨屏之前，计划是将气隙留在新的绝缘材料后面，并使用FHB文章作为指导https://www.finehomebuilding.com/2021/04/27/managing-water-when-insulating-old-walls。最终，这些步骤，一旦我理解雨屏的角色，任何气隙似乎都是不必要的。像以前的所有者一样，我们决定坚持使用标准的巴特安装，但要“升级”到矿物质羊毛，以确保其更好的干燥特性。还有更多的工作要做，因此我仍然对最佳实践感兴趣，如果我对雨屏的评估确实允许旧房子通常用填充螺柱托架的瓦特隔热。
登录或成为成员发表评论。
Sign up Log in