Technical Library

  • Load ChartsLoad Charts – Basic properties, section properties, allowable loads
  • NTA Code ReportNTA Code Report – Basic properties, section properties, allowable loads
  • NTA Code ReportNTA Design Guide – Best practices for designing with SIPs
  • R-Value ReportORNL R-value Report – Whole wall R-value study
  • R-Value ReportORNL Air Infiltration Report – SIPA evaluation of air infiltration on 2 houses
  • R-Value ReportSIP Prescriptive Method – How to use SIPs in residential wall systems
  • SIPs and Energy Star– How to reach Energy Star Home qualifications with SIPs
  • R-Value ReportORNL SIP House Case Study – Read about a home that achieves 50% energy savings
  • R-Value ReportSIP vs. Stick Comparison – Read about how SIPs out-perform traditional “stick” framing


Our in-house technical division is available to help with any specification questions you may have. If you don’t find what you’re looking for or still have questions, please contact us for assistance.

  • – PorterSIPs Roofs, Walls, & Floors Specification View Word Document
  • Code Listing by NTA (Includes load charts) NTA Code Report
  • 20 Year Limited Warranty 20 Year Limited Warranty

Technical Bulletins

Building Code

  • Aspect Ratio Test Data Aspect Ratio Test Data
  • NTA Code Report NTA Code Report
  • ANSI Standard PRS610-2013 ANSI Standard PRS610-2013


  • Building Green and LEED Building Green and LEED
  • Roof Diaphragm Capacity Diaphragms
  • Load Design Charts Load Design Charts
  • Nail Pullout Capacity Nail Pullout Capacity
  • OSB Orientation OSB Orientation
  • Shear Walls Shear Walls
  • SIP Engineered Splines SIP Engineered Splines
  • SIP Fasteners SIP Fasteners
  • Sound Transmission Sound Transmission
  • Recommended Tools Recommended Tools
  • Accessories Accessories
  • Storing PorterSIPs on Site Storing PorterSIPs on Site
  • Receiving PorterSIPs Receiving PorterSIPs
  • Panel Numbering Panel Numbering
  • PorterSIPs & off-gassing PorterSIPs & off-gassing
  • Recessed lights in PorterSIPs Recessed lights in PorterSIPs
  • PorterSIPs used as exterior walls PorterSIPs as Exterior Walls
  • Pest Management Pest Management
  • Floor Applications Floor Applications
  • Vapor Barriers with SIPs Vapor Barriers with SIPs


  • Electrical Wiring Electrical Wiring


  • Fire Ratings Fire Ratings
  • NoBurn Plus Mih NoBurn Plus Mih
  • Flame Spread and Smoke Development Flame Spread and Smoke Development
  • Intertek Listing of Fire Rated SIP Assemblies Intertek Listing of Fire Rated SIP Assemblies

HVAC / Mold

  • Air Exchangers Air Exchangers
  • HVAC Design HVAC Design
  • Mold in Houses Mold In Houses
  • Moisture Protection Moisture Protection
  • Mechanical ventilation of SIPs Recommended Tools


  • Temperature Warning Temperature Warning
  • Exposure to Solvents Exposure to Solvents
  • Exterior Insulation Finish System Exterior Insulation & Finish Systems
  • Low Slope Roofing Installation Low Slope Roofing Installation
  • SIP Tape SIP Tape


  • Lifting and Rigging Lifting and Rigging
  • Installing Roof Panels Installing Roof Panels


  • Installing Wall Panels Installing Wall Panels
  • Field Cutting SIPs Field Cutting SIPs
  • Drawing Panels Together Drawing Panels Together

Building Details

  • General
  • G-1 Reinforcement of Field Cut Openings in Wall Panels
  • G-2 Typical Construction of Rough Openings Including Header
  • G-3 Wall Chase – Examples Site Built
  • G-4 Box for Switch or Outlet
  • G-5 Ceiling Fan Attachment
  • G-6 Wiring Wall Panels – Vertical Runs
  • G-7 Electrical Installation – Wall Panels – Typ.

  • Floor
  • F-1 Panel on Slab
  • F-2 Panel on Sub-Floor
  • F-3 Panel on Sill Plate w/ Rim Joist
  • F-4 Bearing Wall to Floor Joist – Multi-Story
  • F-5 Foundation Framing
  • F-6 Second Floor Connection Detail – Hanging Floor
  • F-7 Panel-to-Panel Floor Joist Attachment
  • F-8 Floor Blocking

  • Roof
  • R-1 Roof-to-Wall Connection Gable End
  • R-2 Framed Roof Eave
  • R-3 Roof Truss-to-Wall Connection
  • R-4 Square Cut Roof Eave
  • R-5 Plumb Cut Roof Eave
  • R-6 Roof-to-Wall Connection Pitched Roof – Beveled Seat
  • R-7 Roof-to-Wall Connection Pitched Roof – Canted Plate
  • R-8 Roof Ridge Connection with Solid Blocking
  • R-9 Cantilever Roof Ridge Connection w/ Solid Blocking
  • R-10 Ridge Cap Detail
  • R-11 Main Roof Ridge to Overlap Connection
  • R-12 Panel to I-Beam / Purlin
  • R-13 Roof Valley Connection
  • R-14 Spline Fastened at Top Only
  • R-15 Roof Framing Options
  • R-16 Framed Roof Penetration
  • R-17 Roof Ridge Connection Without Solid Blocking

  • Panel
  • P-1 Panel-to-Panel Connection with Insul-Spline
  • P-2 Corner Connection
  • P-3 Angle Corner Connection
  • P-4 Panel-to-Panel Connection with Single Lumber
  • P-5 Panel-to-Panel Connection with Double Lumber
  • P-6 Panel-to-Panel Connection with I-Joist
  • P-7 Panel-to-Panel Connection with (3) 2X Lumber
  • P-8 Panel-to-Panel Connection with (4) 2X Lumber
  • P-9 Panel-to-Panel Connection with (6) 2x Lumber
  • P-10 Panel-to-Panel Connection with 9-1/4″ x 5-1/4″ PSL Post
  • P-11 Panel-to-Panel Connection with 5-1/4″ x 5-1/4″ PSL Post
  • P-12 Panel-to-Panel Connection with Surface Spline
  • P-13 Panel-to-Panel Connection with Double Surface Spline

  • Wall
  • W-1 Wall Section
  • W-2 Panel to Wind Girt
  • W-3 Isometric of Interior Wall Connection