如何从热成像访问中获得最佳
Calbungmelb| Posted inEnergy Efficiency and Durability上
I have a contractor coming around in a few days to do thermal imaging on our house with and without a blower. He’s going to visit at 6am so we should have at least 10C difference between inside and outside and no direct sun since the day before.
I was wondering if anyone might have some advice on how to get the best out of the visit. Our house was built in 1930, it’s what we call locally Spanish Mission style, single-storey double brick, on stumps, with insulation underfloor (about R10 American, I think) and in the ceiling (about R25). The roof is terracotta tiles on timber trusses. The windows are all timber frame and single glazed. We have drapes on some windows
谢谢
大卫
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哇，我很少有客户同意六点钟的检查，即使有时最好。听起来您的人知道需要10摄氏度的三角洲，直达阳光是有问题的。为此，我会补充的是，大风条件无济于事，如果早上起床并且正在吹来，我会取消。
如果最近有雨和风，那很好。直到最近，我们有很多星期的炎热干燥条件，我不得不推出几次水分检查。现在，我们已经有了一些讨厌的天气，我已经完成了第一个，发现至少一个泄漏在干燥时期可能没有明显的泄漏。
就准备工作而言，您可以做的一件事就是将东西从墙壁上移开。假设您正在寻找能量和/或水分问题，那么许多检查都是外墙，如果它们被梳妆台和书柜覆盖，这些区域就会被跳过。最简单的检查是几乎没有家具的房屋。
确保您的木炉或壁炉不会燃烧，如果您有踢脚板或墙壁加热器，请在检查前将其关闭，因为它们在墙壁上制作热条纹并花费更多时间进行整理。撞墙的强制空气可以做同样的事情。
If you have vermiculite insulation or any other possible asbestos, make sure the inspector knows that. Same goes for any areas you know have mold/mildew/fungus, or anything else nasty that could get airborne.
我很好奇...您的检查员没有一些具体要求吗？
谢谢for your comments, David.
Thermal energy efficiency imaging for homes is not used widely in Australia. Energy has traditionally been cheap here and we generally have a mild climate. So housing energy efficiency has not had the same focus as in Europe and North America. There is increasing interest in energy saving as energy prices have been rising recently.
我将为几本本地杂志写这次访问。因此，尽管我为此付出了代价，但这种努力在某些方面是一项共同的努力。
因此，我并不是想早点起床...但是我确实必须和我的妻子联系:)
大卫，
You've probably already seen this article -- but in case you didn't, here is a link to an article that may interest you:热成像介绍.
马丁，我曾经看过你的文章。这是对该技术的非常有用的介绍。阅读后，我向热成像家伙建议我们应该在凉爽的早晨拍摄第一件事。
GBA是一个很棒的网站。这么有用的东西
We did the thermal imaging over the weekend early on a crisp Spring morning. Absolutely fascinating. Confirmed some leaks etc that I knew about and revealed lots of other information. I've attached a few images. These are:
Leak Through Floor Boards
泄漏Fromskirtingboard
屋顶太空人孔
Leak under partly open drape
我们在有或没有鼓风机的情况下进行成像。鼓风机肯定有助于使一些空气泄漏更加明显。
好东西！
大卫
大卫（或其他可能认识的人），
我很好奇...
为什么在测试/成像过程中打开窗帘？
I wanted to show the difference made by drapes and a partly open drape. I guess we could have done another shot with the drapes completely open. The windows are 80 years old and leaky single-paned so not expecting any great thermal performance from them
大卫，
Now that you've had this testing/imaging done, do you have any plans to upgrade/retrofit?
A house I'm working on just had a batch of new honeycomb shades installed. One of them was defective and so one window is missing its shade. I was surprised at the difference in temperature between the covered windows and the uncovered window.
在这张照片中，外面很酷，内部非常温暖，没有风，外部没有阳光。窗户是带有绝缘玻璃的较旧的铝制单元，其空域最小，大概是1/4”。
Hi Lucas,
The obvious candidates are:
A/对地板之间的泄漏做点什么。几年前，我们已经安装了地板绝缘材料，但我认为可能有一些补救措施。在那里有点狭窄和尘土飞扬。
b/ ploseaster一些裂缝。
C/绝缘屋顶空间孔盖。关于GBA有几篇有用的文章。
d/填补滑雪板。
e/ Weatherstripping the windows and possibly putting in some double-glazing.
f/ Investigating a couple of anomalies that have popped up.
G/ Big Draft从洗碗机后面找到了自己的方式。不幸的是，将不得不将设备拉出来修复此问题。
H/ Weatherstripting外门。可能用较小的玻璃面积的实木代替两个前门。
i/ We have ventilation grilles (small rectangular cement grille openings) in the house. These are very common in Australian homes. I guess we should look at blocking these.
Then I guess do the measurements again to see how the thermal performance has improved.
Cheers
大卫
大卫，if you have an attic and a crawl space, a number of the air leakage solutions are fairly standard, and just involve getting into both spaces and sealing all the leaks. It is helpful to have a blower door during this, but run it in reverse so it blows air into the house that leaks into the attic and crawl.
您的检查员还有其他泄漏图像吗？
嗨，大卫·M，
We have about 40 images all up. I think it would be useful to do more images of the same house component with and without the blower to pick up increased airflow through particularly leaky bits. I've attached images of the bathroom fan with and without. No prizes for guessing which is which. With the blower even though this was located a hallway and several rooms away from the bathroom the fan was literally humming. Some work needed there.
Any suggestions on how we might seal the floorboard cracks? We want something that's not visually intrusive but gives a much better seal. The underfloor insulation obviously isn't producing an air seal.
在一个相关的注意其有趣的反应ion to these images here and overseas. There's been quite a bit of interest here from a number of groups. I also sent them to a friend in Austria who has recently moved into the straw-bale house he built. He replied matter of factly that they had just had -5C at night with some snow as winter arrives in the northern hemisphere and that he needed to get on with doing some thermal imaging. I was in regional Finland earlier this year where it had been nearly -35C a week or two before I arrived. As I write at 2pm it's around 30C here - which is warm for this time of year. So you can see the different emphasis.
但是，当然，阻止泄漏将有助于夏季舒适和冬季。
所有好东西！
大卫
Here's one that's an absolute cracker. This is a picture of the water storage tank connected to our solar hot water system. The bright spot is the hot water outlet of the tank. A very nice example of a thermal bridge! A local group - the Alternative Technology Association - sells a cosy for these outlets to help reduce the thermal loss.
I've been using the outlet as a vernacular temperature indicator of how warm the water in the tank is getting. (With care during summer; it's get pretty warm.) We've been pleasantly surprised at how good the performance has been over winter. I think we might bling the tank up a bit with a temperature output and do some insulation around the hot water outlet
Cheers
大卫