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Sip Manufacturers

EAGLE PANEL SYSTEMS also manufactures INTEGROOVE® Vaulted or Cathedral Ceiling Panels.  INTEGROOVE® is available in both SIPs and ISIP® Roof Systems.  Tongue and Groove (T&G) Eastern White Pine provides a completed ceiling in lieu of the OSB interior skins.

 EAGLE Panels used in the Log, Timber Frame, Conventional Home Building, Commercial Building and Coastal Building Industries, have made us an Industry Leader in SIP manufacturing.  We offer more than the basic SIP.  The benefits of our brands are many.  Ask for our brands by name.  You'll find that our INTEGROOVE® ISIP® Roof Panels inherently provide finished cathedral ceilings, structural integrity, energy efficiency and lasting quality.

 Our ISIP® Roof System works well for the Conventional Home Building and Commercial Building Industries as well as Log and Timber Frame.  Integrated Structural Insulated Panel (ISIP®) Roof Systems carry heavier snow loads and span farther than basic SIPs.  ISIP® is also used for walls.  The difference between the SIP and the ISIP® is the dimensional lumber included in the latter.   

 Besides our basic SIPs, sometimes referred to as Stress Skin Panels, of Expanded Polystyrene (EPS) Insulation sandwiched between Oriented Strand Board (OSB) skins, used in the Log and Timber Frame Industries, we offer specialty Panels exclusive to our brands. 

  EAGLE PANEL SYSTEMS is a pioneer in the field of Structural Insulated Panels (SIPs).   Thirty years of experience in the SIP Industry has resulted in the development of our exclusive brands. 

Log Home


Eagle Panel Systems Structural Insulated Panels (SIPs) are far superior in strength, energy efficiency, and lasting quality when compared to traditional framing/insulating methods. Creating a permanent energy envelope, the panels provide a more comfortable living space. Significantly reducing heating and cooling bills, Eagle Panel Systems SIPs insure continuous savings throughout the life of the structure.

Eagle Panel Systems SIPs provide the additional advantage of eliminating air infiltration. Commonly referred to as R-Value, the measure of resistance to heat flow through insulation, is based on tests conducted under laboratory conditions which do not take into consideration such variables as air infiltration, settling, moisture, compression behind wiring, etc. Other test studies have confirmed that minimal 15 mph to moderately high 25 mph outside winds significantly reduce the thermal performance of loose fill batt type insulation. Outside air enters through the loose fill insulation, which must be vented by moving air, and passes through electrical outlets and around windows and doors. The results of air infiltration are higher energy costs and uneven temperatures.

The energy envelope created by Eagle Panel Systems SIPs eliminates hot and cold spots caused by air leaks. Unaffected by air infiltration and other variables, the R-Value of Eagle Panel Systems SIPs increases in viability. The ability to eliminate air infiltration provides the difference in energy consumption and energy savings

Timber Frame


See Articles in copies of Log Home Living®:

February 2015 "A Dream Deferred" / HDL Custom Log Homes

April 2015 "Shelter from the Norm" / Greatland Log Homes

Conventional Home