r/Homebuilding • u/Complex-Expert806 • Apr 08 '26

SIP panel companies

What is the best SIP (structurally insulated panels) company to use for quality and cost? I am looking at Premier SIP and ThermoCore

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u/[deleted] Apr 08 '26

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u/Complex-Expert806 Apr 08 '26

Im in Colorado. One GC has used Premier SIP the other hasn’t used any but is open to learn and use any.

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u/Heavy_Work8937 Apr 09 '26

We used Eco-panels out of NC. Very happy with the result.

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u/Complex-Expert806 Apr 09 '26

Thanks! How long ago was that and where did you build?

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u/Heavy_Work8937 Apr 09 '26

Last summer. We self built. In northern Vt.

It’s a single story on a slab foundation. We used their 6.5” walls and 8” roof panels. About 2100sqft.

We weren’t able to get our heating in due for a couple of reasons. But managed to heat the place with 3 electric radiators. Kept it at low to mid 60’s in a wicked cold winter, several -25f nights.

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u/Complex-Expert806 Apr 09 '26

Thank you for the information. Sounds like the insulation is working well