C024 -- Developing a Composite Vacuum Insulated Panel (VIP) Insulation/Vinyl Siding Composite Technology for Retrofitting Residential Walls

This paper summarizes a three-year research project to combine highly efficient vacuum insulated panels (VIPs) with vinyl siding to produce an off-the-shelf product with sufficient R-value to meet the continuous insulation requirements of the 2018 International Energy Conservation Code (IECC, 2018) in all climate zones. VIPs provide high thermal value in thin profiles; an integrated VIP/vinyl siding product for existing residential homes would avoid expensive retrimming of the architectural details. This paper provides information on the development of the technology; thermal modelling; testing; results of listening sessions that solicited input from architects, designers, manufacturers, contractors, and installers; and a techno- economic analysis to gauge potential competitiveness with existing product options.

Successful commercialization of a VIP/vinyl siding product would address a key opportunity to achieve energy savings in existing residential housing stock. Adding insulation on the inside of a home is disruptive and adding a layer of continuous insulation to the outside is challenging because thicker walls require complex air sealing and finishing details at every interface: windows, foundation, soffit, penetrations and inside and outside corners. An insulated siding with high R-value per inch would be a compelling alternative – a single, well-understood product to achieve two sought-after goals: upgraded appearance and better energy performance.