How to Price SIPs in Your Construction Project: Step-by-Step Guide
This guide walks you through five essential steps to properly evaluate SIPs pricing, ensuring you get a fair and complete..
When you build with Premier Structural Insulated Panels (SIPs), you’re not just improving the building envelope—you’re optimizing the entire mechanical system, too.
Traditional building assemblies tend to leak air, requiring oversized HVAC systems to compensate for energy loss. Larger HVAC systems, consume and emit more energy, and contribute more green house gas emissions into the environment. SIPs eliminate this inefficiency, and fossil fuel consumption. Thanks to their continuous insulation and airtight construction, SIP buildings reduce HVAC needs by up to 50%, often cutting the system size from 1 ton per 600 sq ft to 1 ton per 1,200 sq ft.
But to get the full benefits, you need to size your HVAC system properly.
Oversizing HVAC equipment can lead to short cycling, poor humidity control, higher maintenance costs, and reduced comfort. Instead, use ACCA Manual J or REM/Design software to calculate accurate loads that reflect the airtight nature of SIPs.
Premier SIPS structures regularly test below 1.0 ACH50, with many hitting as low as 0.3 ACH50—far exceeding standard building performance (Climate zone dependent standards range between 3-5 ACH50) . That means less air leakage, better energy efficiency, and smaller, more efficient HVAC systems.
Because SIP buildings are so tight, they require mechanical ventilation to maintain fresh indoor air. This has also become standard for many jurisdictions and construction types regardless of building envelope assembly. Recommended solutions include:
>> DIVE DEEPER: UNDERSTANDING SIP VENTILATION AND AIR SEALING REQUIREMENTS
SIPs often eliminate the need for an unconditioned attic, as the panels are strong enough to span rooflines without the need for truss systems (structural engineers are excellent at offering options for this with SIPs). In these cases, ductwork can be routed through interior partition walls or dropped soffits. Eliminating ductwork and blown air altogether, mini-split systems are regularly used in SIPs construction. Planning for the HVAC layout early in the design process keeps installation efficient and compact. An unconditioned attic is also a huge area of air leakage and air infiltration, eliminating this variable contributes to a building's efficiency enabling more efficient HVAC systems.
It’s tempting to fall back on rough estimates, but SIPs change the equation. Old rules like “1 ton per 600 sq ft” don’t apply here. Let the data from your SIP structure drive the system design to avoid costly oversizing and inefficiencies.
Learn more and download our Design Best Practices for HVAC with SIPs.
When properly sized, HVAC systems in SIP structures:
By designing HVAC systems specifically for the high performance of SIPs, you’re not only protecting your budget—you’re delivering a healthier, more efficient space for the people inside.
Whether you're designing a single-family home or a large commercial building, integrating SIPs and a right-sized HVAC system is a smarter approach that pays off in performance, long term operating costs and peace of mind.
For more information, connect with a local Premier SIPS rep in your region.
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