The Rot Doctor


Subject: Would appreciate your opinion (corbles)
Date: Sunday, July 10, 2016


I have been using your products your products for about 10 years now trying to keep our home in good shape. Our home has 30 some corbels varying in size between 4 x 12 and up to a 10 x 20. Some are decorative and others are actual structural beams. When we purchased the home there was no protection on top of the corbels. The sun took care of the paint, termites got in and then the rain followed there holes. We ended up with significant dry rot here in San Diego. 10 years ago, I purchased your product, treated the dry rot and added aluminum covers with a drip edge to each corbel and then painted.

Here we are 10 years later and I have discovered some new dry rot on some of these corbels. As I start round two of the repair, I would like your advice and let me know if I am going about it correctly. There are two different situations.

1. The corbel with two rotted out areas - I have already treated this with CPES, I would guess that I have soaked about 15 ozs of CPES into this corbel. To save on the Rot Doctor material, I was planning to cut a new chunk of wood that would fit into these spaces, coat it with CPES and then use Fill-It to fill the cavity including the chunk of wood. Is this a good plan or should I be using the Layup and Laminating epoxy for the primary fill?

This is a good plan, and the Fill-It or the L&L Resin/sawdust locking fill would accomplish what you want to do.

2. The other one a is 10 x 20 corbel. This is one that I scabbed a new piece onto about 10 years ago. The piece that I did not cut away was a 4 foot long piece that I used the Layup & Laminating epoxy to glue into place at that time. I had of course saturated (maybe not as well as I should have) the lower part of the beam with the CPES. This time I have cut off a 2 foot long section and have absorbed about 24 oz of CPES into the end grain where I cut the piece away. I was planning to basically repeat what I did 10 years, scab a new piece onto the bottom. This time to improve the shear strength, I will use 4 lag bolts from the bottom to attach the new piece. I was again planning to use the Layup & Laminating epoxy to scab the new piece on and then use Fill-It to finish out any voids of holes. Then a quick coat of CPES and then paint.

A good plan. The more CPES the better. It kills the fungi as well as harden the wood. The L&L resin would make a secure bond of new wood to old wood.

Any advice that you have for me would be greatly appreciated.

Best Regards,
Rick T


Your suggested plans are exactly what I would have outlined of you had just shown me the damage. It is what I would do.


Date: July 10, 2016

Hi Doc,

Thanks for the confirmation. I think that I have enough supplies for now, just received a gallon of Fill-It and 2 qts of layup epoxy. I am working on a two gallon unit CPES that is about 2 years old and still have a gallon. I still have at least another 10 corbels to examine.

You have great products and your service and response has been exceptional. You deserve accolades for running a great company.

Kind Regards,
Rick T


We very much appreciate your kind words. They validate our continuing efforts to sell a good product and provide the customer service people expect.