Advanced Framing/Optimum Value Engineering (OVE)
Advanced Framing or OVE uses various techniques to limit the amount of lumber and accumulated waste associated with traditional framing, thereby saving on material costs and reducing demand on natural resources. Because advanced framing minimizes the amount of lumber used we are able to use more insulation to improve the thermal performance of the building envelope.
Thermal Performance:
The thermal performance depends upon many factors. The size of the walls and the type of insulation system utilized. PSD's preferred approach is to use blown in cellulose in the wall cavity with a 2" rigid foam wrapping the exterior of the building. With this technique we are able to achieve an R 30 in the wall system. These specs are based upon a 2 X 6 framed wall.
Construction Techniques:
Some of the techniques used in advanced framing include:
- Spacing wall studs 24 inches on center
- Spacing floor joists and roof rafters 24 inches on center
- In-line framing- eliminates the need for double top plates reducing lumber costs
- Two-stud corner framing- reduces the amount of lumber used and increases the amount of insulation at the corners of the building envelope
- Single plate interior headers
- Insulated exterior headers
