The design team and project partners enlisted to reimagine the new Summit House, which is more than double the size of the former structure, were met with a unique set of opportunities and challenges: revitalizing the sky-high attraction while adhering to the highest green building standards.
Failure to properly insulate below-grade can be a costly misstep for the design-build sector. Materials like expanded polystyrene (EPS) rigid foam insulation are a cost-effective solution, affording proven moisture resistance, long-term thermal performance, and compressive strength.
When one comes across the R 13 + 7.5 ci wall insulation requirement in the International Energy Conservation Code (IECC) commercial provisions, it can be tempting to just add the two R-values and install R-20.5 rated insulation in the cavity with the assumption being that the same performance can be achieved with fewer steps.
The American Iron and Steel Institute (AISI) has released findings from research conducted to support the development of a calculation methodology for determining the U-factors and R-values for wall assemblies containing cold-formed steel.
Many conflate R-value with good thermal performance or insulating value. The belief is the higher the R-value, the better the thermal performance. However, as a blanket statement, this could not be any further from the truth.
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