Princeton Engineering and Solar

Solar, Structural, Electrical and Site Engineering

Civil Site


Contact Us

iRooF TM

Instant Roof Framing Analysis

Roof Framing Analysis for Rooftop Solar Installations

Use the online iRooF TM data form to enter field data and locate the proposed array on the roof structure.

Even use your smartphone to submit projects from the field!

iRooF TM gives you INSTANT:

  • Error checking on your data input
  • iRooF TM structural engineering report
  • Professional Engineer's State Seal AND e-Signature on your iRooF TM report
iRooF TM takes care of input data error checking and prepares a detailed structural report for submission to AHJ's across the US and Canada.

iRooF TM INSTANTLY tells you if the roof can support a PV solar installation.
iRooF TM INSTANTLY identifies problems and tells you how to strengthen a weak roof
iRooF TM INSTANTLY specifies minimum racking lag bolt requirements
iRooF TM INSTANTLY creates a complete roof structural analysis report
iRooF TM INSTANTLY adds a Professional Engineer's State Seal and e-Signature on your iRooF TM report

The iRooF TM report is ready for your Licensed Design Professional's review / signature / seal. Alternately, you can have our Professional Engineers sign and seal the report.

iRooF TM is used by:
  • Licensed Engineers
  • Registered Architects
  • Solar Contractors

iRooF TM has two types of roof structural analysis:
  • Standard Framing
  • Truss Framing
iRooF TM 's large database of equipment and building materials includes:
  • PV Solar Modules
  • Solar Rack Mounts
  • Roofing Materials
  • Framing Lumber Species
Princeton Engineering also offers electrical and structural plan set review / signing / sealing in 23 states: AZ, CA, CO, CT, DC, DE, FL, HI, IL, MA, MD, MI, MN, NC, NH, NJ, NV, NY, OH, PA, RI, VA and WI.

Princeton Engineering and Solar

35091 Paxson Road
Round Hill, VA  20141
Tel:  540.313.5317
Fax: 877.455.5641

For more information, contact us at: