Angle Iron Retrofits-Will they work?

Angle Iron Retrofits.

Angle Iron Braces

This video discusses an untested retrofit method that your contractor or engineer may recommend.  It is a general standard of practice that only tested retrofit hardware and methods should be used.  Otherwise, what will happen is anyone’s guess.

The information in this video was created after consultations with numerous structural engineers.  Structural engineer  Josh Kardon Ph.D. told me they would be happy to tell people his opinion if you want to call them.

Kelly Cobeen was kind enough to do actual calculations regarding their effectiveness.  In conclusion she discovered that an Angle Iron Brace has the strength of 1/4 a bolt.  Numerous structural engineers were kind enough to answer questions I had about their efficacy.  In addition, Buddy Showalter with the American Wood Council, the largest wood products research center in the world, was willing to give his expert opinion where in he said he was perplexed that anyone would retrofit a house in this manner.  All of these engineers are highly distinguished in field of wood-frame seismic retrofitting.

 

Sample Angle Iron Braces

 

Image of angle iron braces from contractor website

Photograph of angle iron installed under house

 

 

 

Areas Served

San Jose,Sunnyvale, Fremont,Oakland,Berkeley
And Surrounding Areas
408-664-6355
510-548-1111

Member

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License Info

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