Halo Exterra rigid exterior insulation - has anyone work with it?
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Halo Exterra rigid exterior insulation - has anyone work with it?
George Shannon
Jan. 21, 2020Last updated: Sept. 4, 2020
Hi I'm wanting to add insulation to the exterior of my home as I am planning to replace siding was considering rockwool comfortboard but this Halo product was sugested by my local supplier. Has anyone work with it. The manufactures claims its better than slice bread but don't they all.
Any thoughts would be greatly appreciated
Cheers
The best way to insulate the exterior of a house has a lot to do with what is going on inside the walls, and how extensive your energy-efficient renovations will be. The following page will help you understand some of the risks and find the best way forward -
The easiest way to insulate walls from the exterior in older homes
But to speak to the products you mention - Rockwool isn’t the cheapest, it also isn’t the highest R value, but it’s a workhorse of an insulation product that can safely be applied to most exterior walls for the main reason that moisture moves right through it, so you won’t accidentally be trapping moisture inside walls. It is also hydrophobic, meaning it is very resistant to moisture and water damage.
There are many ‘all-in-one’ insulation products on the market, Halo rigid panels seem similar to many others, and most of the ones we see work very well when applied properly and in the proper place. The most common reason that a good product can cause a wall failure is by putting it in the wrong place.
The safest advice we can give you is to learn the science behind walls so you can choose wisely. There are some rigid insulation panels with air barriers, vapor barriers, some with none and some with both. In cold climates you want vapor barriers on the interior, so you need to be careful not to apply a vapor-impermeable panel to the outside.
On the Halo website they speak of 'breathability' of the Exterra product, so that's good, though it would be nowhere near as breathable as Rockwool.
Choosing the best exterior insulation will also depend on your climate, so if you tell us your climate zone (or closest city) we may be able to offer a bit more insight. In the meantime, here are a few more pages that will help you find the best option.
Hi Mike
我住在温尼伯以北一小时车程的温尼伯湖上。这是一栋建于1927年的家庭别墅，我现在一年四季都住在这里。再加上阁楼里的R40和下面的热夹层。墙壁是木屑和一些玻璃纤维，那里的墙壁被打开了。墙板需要更换，所以计划放入两层岩棉舒适板11/2”，带防雨带，然后乙烯基墙板。乙烯基墙板不是我的首选，但我买得起。
在此之后，隔热层空间将被封装，并在现有的基础上增加更多的隔热层。
Any sugestions?????
Cheers thanks for your time.
我也读过你们所有关于墙体保温的帖子，信息量很大。
你好，乔治，温尼伯的冬天气候并不温和，如果我没看错的话，你计划使用4英寸的EPS，对吗?如果是这样的话，那就太好了，这一点都不过分。
The thing about EPS insulation, is that a 'little' on the outside (like 1 or 1.5 inches) can be problematic, but several inches stops being a problem, as it starts acting like a SIP wall (structural insulated panel), and the foam itself is the vapour barrier. So if your plan was either 4 inches of Rockwool or 4 inches of Halo rigid insulation, I'd be less concerned that if you were only putting 1 inch of Halo.
如果你选择岩棉我想特卫强就是你的空气屏障，对吧?带得很好!
Here is another page that may be of value, it's about air barriers and vapour barriers. Glad you're finding value in our pages, hope this all helps!
The Difference between air barriers and vapor barriers
Hi Greg,
Foam panels will act as at least a bit of a vapor retarder, if not an impermeable vapor barrier. And the foil on foam panels would quality as impermeable, even more so than 6 mil poly vapour barriers. If you install 1 or 2 inches of foil faced rigid insulation on the exterior it will inhibit moisture from escaping to the exterior, but it may still be cold enough that moisture will condense. If exterior rigig panels are thicker, they still block moisture but the interior surface will be warmer, so it reduces the chance of condensation forming.
This is a 'best practice' tip, but frankly most of the building industry in colder climates does it anyway so you're in good company. It isn't a catastrophic mistake (as some other things in building code are), but all these things ad up. Certainly in Canada it's happening in most places in order to meet code when you're framing a 2x6 wall and using fiberglass batts. This page aboutchoosing between OSB and Plywood for exterior sheathingexplains it at greater length, hope that helps.
For anyone that has the option to make a change, usingmineral wool / Rockwool rigid insulationis a way to meet code insulation requirements in building code without increasing the risk of trapping moisture in walls, since moisture moves right through it.
这是很好的信息。在一个类似的注意，我们正在翻新一个2x4 1969年建造的平房和毛皮寡妇2“与计划添加2”刚性板。我们买了很便宜的喷雾泡沫，所以把它放在了墙里，想知道这是否会影响我们在外面使用的材料。We are in calgary, similar to Winnepg
I don't quite understand Candi, to clarify - did you fur out the entire exterior walls and blow a layer of spray foam onto the entire exterior wall surface? happy to help sort it out for you I'm just not sure what you've got going on there. Are you asking what sort of siding to put on after spray foam?
Hi, Greg: My understand of Halo Neopor is that it is highly vapor permeable, not quite as much as rock wool, but more than EPS/XPS and way more than any foil faced panels. I consider rockwool and Neopor interchangeable in terms of vapor movement.
Hi George, did you go with Halo in the end? If so, what did you think of it? I am considering using this for my home.
想知道是一样的吗?