Replies

1. 
   Steve Knapp CZ 3A Georgia|Aug 05, 2020 05:28pm|#1

   凯里,

   泡沫承包商似乎似乎常用这个球场，你明智不相信它。我怀疑5“到6”的价值主要是关于市场竞争以及在一次访问期间可以安全地喷洒的东西。本文 （//m.etiketa4.com/article/open-cell-spray-foam-and-damp-roof-sheathing)指出,开放对屋顶sh细胞eathing can be risky. A flash and batt roof (//m.etiketa4.com/article/flash-and-batt-insulation）将更安全，但您还有其他选择，包括具有许多吹入的绝缘的通风阁楼（只要管道位于其他地方）。

   I would seek out a contractor who has some experience with energy-efficient construction and see what approach they are comfortable with.

1. 
   凯里Holliday|Aug 06, 2020 12:08am|#2

   谢谢史蒂夫，

   Unfortunately we seem to be in a “desert” for energy efficient and green building contractors. The rural TN lack of codes has established large geographies with no market value or support of these practices. I was really surprised how disincentivized we are to build a low quality house with nicer exterior finishes. That’s what the market, and banks, value here.

   这一切就是说，我将继续寻找另一个绝缘承包商，但似乎很少。我们找不到高密度纤维素的地区找到任何人，我们现在也在考虑泡出墙壁。

   Thanks again,

   凯里

2. 
   Steve Knapp CZ 3A Georgia|Aug 06, 2020 01:20pm|#3

   嗨Cory，

   你在施工过程中有多远？如果它还为时不晚，我会在阁楼纠正举起的凸起的脚跟，只是在一吨纤维素中吹。我也会在墙壁上用纤维素。我在GBA上读了几篇文章/线程，表明您通过空气密封可以最大限度地提高您的效率，并在阁楼中进行大量保温。

   If you still want to boost wall performance, consider adding some exterior insulation. EPS or reclaimed would be best.

1. 
   凯里Holliday|Aug 07, 2020 08:52am|#4

   谢谢史蒂夫。

   We’re already framed up and in the dry. I recognize that spray foam is not the greenest product and that there are better options. We’ve had to modify our plans in several areas based on limited local knowledge and contractor availability. It’s a definite drawback to living and building in a very rural area without codes. For example we paid quite a bit for energy modeling and an HVAC plan from a third party engineering firm only to discover that no one local would or could build the system as prescribed. It seems that so many practices are dependent on good installations that I’m bending toward what local contractors are comfortable with and familiar with rather than trying to force “new” practices and materials that may be installed sub-standard.

   Regarding exterior foam, I’m completely against the concept in areas prone to high winds. In my region of TN we had two separate wind events this year that damaged buildings and I was amazed at how much rigid foam was carried off and scattered around the region. It was hard to believe. Much of that is still scattered through the woods and certainly a good amount will be carried off into waterways. It really turned me away from exterior foam in our area. EPS especially seemed to break into smaller bits compared to polyiso. Polyiso in large chunks was scattered miles and miles beyond the direct impact areas.

   Anyway I really appreciate the input. We’re doing the best we can out here and GBA has been an amazing resource. I did find one more insulation contractor to try and I’ll be calling them today.

   Thanks again,

   凯里