9/18/2023 0 Comments Conform icf blocks![]() ![]() In order to keep the building tight, an air barrier must be installed below the insulation to prevent the warm interior air from moving through the ceiling and roof insulation, wasting energy. This ventilated space is open to the exterior through roof vents which allow the roof assembly to breath. A vented roof assembly has an airspace between the lower insulated portion of the roof and the roof deck. The two main options for framed roofs are vented and unvented assemblies. Addressing air and moisture movement through these wall assemblies (a critical concern) is possible, but a bit tricky and it requires quite a bit of attention to detail by the builder. Both of these wall details can provide very high levels of insulation and very little thermal bridging. This foam adds to the r-value of the wall and also eliminates the thermal bridging through the studs. The framed wall with exterior foam insulation accomplishes the same thing by sheathing the entire exterior of the framed wall with ridged foam insulation. The two walls and the space between are filled with insulation allowing for high r-values and very little thermal bridging through the studs. The double stud wall is essentially a typically framed house with another non structural wall built inside of the primary exterior wall. In our experience, the two most popular super insulated advanced framed wall details are a double stud wall and a framed wall with exterior ridged insulation. Advanced framing refers to framing techniques that use as little wood as possible to support the building thereby allowing for more insulation and less thermal bridging. There are a great many different stud framed wall and roof options that work well from a building science standpoint when detailed and built correctly. The three most popular super insulated systems are advanced stud framing, Insulated Concrete Forms - ICFs (for walls only) and SIPs. There are a host of super insulating wall and roof assemblies that can work great in regards to building science considerations. At Sunlight Homes, we closely follow the building science industry and regularly update our design details and systems to conform with the most current best practices developed through evidence-based research.īuilding Science Approved Wall & Roof Detailsįor most climates in North America, a good wall system must be well insulating and must prevent air and moisture movement. These best practices ensure that the finished home is durable, cost effective, energy efficient and comfortable. There are professional publications with information and recommendations on home building best practices, based on the most current building science knowledge. The goal of building science is to better understand how our current built environment functions on a holistic level and how to improve upon it with evidence-based research. ![]() Building science is the collection of scientific knowledge and experience primarily concerning building design and detailing in response to naturally occurring physical phenomenon such as the weather, the characteristics of materials, human physiology and energy consumption. If you have been doing research into the technical end of building a high quality, custom, green home you have probably stumbled across the concept of “building science”. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |