Do frost lines where studs are on a wall show a failure of spray foam insulation?
Gerald CrozierJuly 22, 2019Last updated: Aug. 4, 2020
I have a customer with frost problems whose home shows every stud from the outside on a winter day. Would you say their spray foam insulation has failed?
The best method of wood frame constructionwould always include continuous insulation on the exterior of walls, without that you may see indications ofthermal bridging through studsin the form of frost lines. The temperature on the exterior of the wall where the studs are would be higher than the temperature adjacent to the stud bays since they are filled with spray foam (SPUF), and so it may melt the frost.
Feel free to send us more details or pics of the wall. I am also a bit curious as to how it showed the studs from the outside if theresiding installed with an air space，墙面是否仍在施工中，外墙是否结霜?
Understanding building science basics will help you design and build durable and efficient wall systems, in this instance LEED Platinum v4. LEED Platinum V4 Wall…
There will come a point where the cost of insulation in any attic, wall or basement - and the energy required to manufacture and transport it - will outweigh any savings. Want…
Spray foam insulation has been used primarily for home renovations as a way of sealing and insulating in one step, but spray foam is now even finding a home in new build - but…
Understanding the performance characteristics & limitations of different types of insulation before you make a purchase & start to build or renovate a high performance home is…
Understanding how insulation works is best achieved by first understanding the way heat loss occurs in homes. Insulation slows the rate of heat transfer, helping keep homes…
One of the first decisions when building a home is what type of foundations to sit your home on - cold-climates, termites, problem expansive clay soils, insulation & vapor &…
在没有看到一个项目或不了解整个墙的组装之前，很难完全自信地衡量一个问题，但如果有什么不同的话，这实际上可能表明喷雾泡沫的“成功”而不是失败。The wood studs will transfer far more heat than theSpray Polyurethane Foam (SPUF), so what you are seeing could actually be an indication of how important it is toinclude seamless insulation in a wall assembly.
The best method of wood frame constructionwould always include continuous insulation on the exterior of walls, without that you may see indications ofthermal bridging through studsin the form of frost lines. The temperature on the exterior of the wall where the studs are would be higher than the temperature adjacent to the stud bays since they are filled with spray foam (SPUF), and so it may melt the frost.
Feel free to send us more details or pics of the wall. I am also a bit curious as to how it showed the studs from the outside if theresiding installed with an air space，墙面是否仍在施工中，外墙是否结霜?