SIP Are Business Science
Building Science vs track built homes, are questioning the “this is the way we have always done it,” story.
Building science is thinking rationally about why things rot and what is necessary to make the building comfortable and long lasting.
Spartan supplied SIP Panels have the answers to these questions and there is certainly no one right answer. However, because SIPs are very different from traditional stick built homes, the “Rules of Thumb” by which most construction companies build, are not adequate. In order to design a new set of rules we went back to the science and found that most of “the way its always been done” doesn’t work very well even for traditional stick built structures, and it certainly is not effective for SIPs.
Create a comfortable indoor environment without changing the climate.
SIPs have only about 3% thermal bridging as opposed to the 27% of stick framed wall. Foam insulation offers higher R-values per inch than most other insulation allowing thinner walls to give great insulation. Panels do not settle nor are they prone to cavity air circulation both of which severely degrade the initial performance of stick frame insulations like fiberglass and cellulose.
Low Air Infiltration is often the Most Cost Effective way to save energy
The combination of expanding foam sealant in all gaps and taped seams, which is Foard Panel’s standard operating procedure creates a continuous air barrier. OSB and our foam insulators both have low permeability to stop air infiltration. This means there is less air transferring through your walls and therefore, less air to re-heat or cool.
Material Efficiency – Renewable Wood Materials
OSB is made from Young Trees and Undesirable Parts of Lumber Sized Trees
Wood products use the least energy to extract of any building material. Wood regenerates, but often more slowly than we use lumber, however OSB is made from fast growing farmed trees that reduce the demand for old growth timber. Wood contains CO2: wood in buildings is keeps CO2 out of the atmosphere.
While we cannot use recycled EPS due to its lack of strength in our structural panels, the EPS foam can be recycled to make packing materials and many other useful products. Polyisocyanurate we use is up to 25% recycled
Less Construction Waste on Site
With pre-cut panels ready to build there is very little construction waste, unlike standard construction SIPs to not contribute significantly to the 40% of all waste in America that comes from construction projects.