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Bay Area Retrofit
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  • How To
    • Engineering
      • Engineering is Everything
      • Seismic Retrofit Engineers Answer Questions
      • Seismic Retrofit Hardware And Plywood
    • Cripple Wall Retrofits
      • Science and Practice
        • Cripple Wall Retrofit Installations
        • Cripple Wall Retrofits Simplified
        • History of Plywood Nailing Until P-1100 “Retrofit of One and Two-Story Dwellings”
          • Shear Wall Basics
          • Shear Wall Types
            • Nailed Shear Walls
            • Double Sided
            • High Capacity
            • Stapled Shear Walls
            • Stepped Shear Walls
            • Balloon Framing
            • Short Shear Walls
            • Shear Blocking Floor Connection
            • Lead Based Paint And Silica Dust In The Retrofit Process
          • All About Plywood
            • History of Plywood Nailing Until P-1100 “Retrofit of One and Two-Story Dwellings”
            • Nail Penetration into Framing
            • Three Ply Plywood
            • Hazards of ACQ Lumber
            • The Impact Moisture on Plywood
            • Research Report 154
            • Research Report 138
            • Slant Nailed Plywood
      • The Most Critical Plywood Connection
      • Shear Transfer Ties
        • Steel Shear Transfer Ties
        • Shear Transfer Ties using Lag Screws
      • Upper Top Plate Connections
      • Tension Tie Floor Connectors
      • Balloon Framing
      • Porches
      • Designing a Cripple Wall Retrofit
    • Hold Downs
    • Shear Wall Repairs
      • Sheet Metal Repair Method
      • Overdriven Nails
      • Shear Blocking Floor Repair
      • Repair Methods Summary
    • No Cripple Wall Retrofits
      • Install a No Cripple Wall Retrofit
      • Retrofitting Bolted Homes
      • Design a No Cripple Wall Retrofit
      • Shear Transfer Ties No Cripple Wall Retrofits
      • Additions
        • Additions – Cripple Wall
        • Additions Floor to Floor Connectors
      • Side Bolt Mudsill
      • Mudsill Embedded in Concrete
    • Soft Story Retrofits
      • Soft Story Retrofit Strategies
      • Rotational Soft Story Retrofits
      • Steel Column Soft Story Retrofits
    • Hillside Home Retrofits
      • Hillside Homes Retrofits
      • Framing Hillside Home Retrofit Decisions
      • Hillside Home Code Regulations
    • Three Foundation Retrofits
    • Foundation Bolts
      • What They Do
      • Mudsill Plates
      • Over-sized Bolt Holes In The Mudsill
      • Plate Washers
      • Wedge Anchors Bolts
    • Additions
      • FEMA P-1100 and All Other Guidelines Don’t Understand Addictions
      • Floor to Floor Connectors
    • Foundations
      • Everything About Foundations
      • Testing of Old Foundations
      • Efflorescensce
      • Foundation Capping
      • Rotated Foundations
      • Brick Foundations
    • Lead Based Paint And Silica Dust In The Retrofit Process
    • Engineers Answer Questions
  • Library
    • PDF Resources For Engineering and Design
      • FEMA P-1100
        • What is FEMA P-1100?
          • P-1100 Two
          • ICC 1300 Tie Downs And Old Concrete
          • ICC 1300: Cantilevered Joist Blocking In One And Two Story Dwellings
          • FEMA P-1100 and ICC 1300: Retrofitting Floor Connections
          • ICC 1300 And Standard Plan A: Comparing The Cost.
          • FEMA P-1100 and ICC 1300: Retrofitting Floor Connections
          • ICC 1300: No Top Plates In One And Two Story Dwellings
          • FEMA P-1100 and All Other Guidelines Don’t Understand Addictions
          • Balloon Framing In P-1100 Compared To Contractor’s Methods
        • Wedge Anchors
        • ICC 1300: An Unusual Way To Do It
        • Where Should Retrofit Foundation Bolts Go?
        • FEMA P-1100 Mudsill Connections
        • Balloon Framing
        • ICC 1300: The Simpson StrongTie URFP Type A Connector
    • Very Technical
      • Construction Details
      • Hardy Frames
      • Nails and Staples
      • Shear Wall Blocking in Exterior Siding
      • Tension and Continuity Ties
      • Tension Tie Floor Connectors
      • The corrosion problem of ACQ treated lumber. 
      • Nails and Staples
      • Tensile Strength in Continuity Ties
      • Sheetrock
      • House Weights and Retrofit Designs
  • Before Hiring
    • Do I need a permit?
    • Finding a Contractor
      • 10 Tips on Finding a Good Contractor
      • East Bay Retrofit Contractors
    • Do I Need an Engineer?
    • Earthquake Insurance
    • Workers’ Compensation and Liability Insurance
    • Proof it Works
    • Government Guidelines
      • A Complete List
      • Appendix Chapter A3
      • Standard Plan A: An Insider’s Perspective
      • CEA Earthquake Brace and Bolt Program
    • How Not to Do It
      • Garbage That Looks Impressive
      • The Post to Beam Connection
      • Standard Plan A. a Regional Disaster
    • Preparedness
      • A Video on Safety
      • Untrained Contractors Can Kill You
    • Homeowner’s Guide to Seismic Retrofitting.
  • VIDEOS
  • Geology
    • USGS Predictions
    • Other Government Predictions
    • The Ring of Fire
  • FAQ
  • Reviews
    • Angie’s List, YELP, and Google Reviews
  • Sitemap
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Areas Served

East Bay, South Bay, North Bay and Peninsula, including San Jose, Sunnyvale, Fremont, Oakland, Berkeley and Surrounding Areas

408-664-6355
510-548-1111

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Disclaimer

This website is intended to help clients of Bay Area Retrofit to understand their retrofit proposals.

IT IS NOT INTENDED AS A GUIDE FOR DIY RETROFITS. Retrofit design is based on many factors. Each house is unique. Bay Area Retrofit does not recommend performing a retrofit without the guidance and supervision of experienced and knowledgeable retrofit professionals, and is not responsible for costly errors, injuries, or earthquake damage that result from such attempts.

Bay Area Retrofit assumes no responsibility or liability for use by homeowners, contractors, engineers, or anyone else of the information provided on this site.

License Info

Workers' Comp RWCC64393236
Contractors Lic #558462
Bond #SC6334450
Liability Ins PCA 1045011
Contractor's License Board

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