The Rot Doctor


Subject:Our new 1929 cabin
Date: Thu, 10 Jul 2003


I recently purchased a 1929 log cabin on a lake in Oregon. There are areas that presently have rot on them, ie. ends of roof rafters and the ends of a few of the logs. I was told to cut at least 12 inches above the rot then seal the ends. Is it necessary to cut 12 inches above the rotten areas?

No, it isn't necessary to cut the ends off. If you saturate the deteriorated wood with CPES™ it will stop the rotting process absolutely and harden the soft wood. If the wood is not as hard after the first treatment with the CPES™, then simply apply another coating.

Gaps/holes/cracks can be filled with a mix of our Layup & Laminating Resin™ and sawdust. We also offer an epoxy coloring agent if you wish to brown-tone the final finish.

What do you recommend placing on the ends of the logs to prevent further rot? CPES™ or Layup laminating resin™?

We suggest that you treat all log ends with the CPES™. This will be absorbed into the wood in surprising amounts. It will seal the wood and prevent any further deterioration.

The outside of the cabin need to be cleaned and sealed also. What products do you recommend for this job?

This is a subject we stay away from because it involves so many variables, including the appearance of the wood, and because the products/formulas are constantly changing. Generally speaking, the stains/sealers with the most pigments in them will protect the wood best, since the pigments provide some UV protection. None of these stain/sealer products will provide effective rot protection, in spite of the manufacturers' claims. We would suggest that BEFORE you do any general exterior sealing, you treat all vulnerable areas with the CPES™. This would include upward facing log cracks that might accumulate moisture.

We're excited about our log cabin and want it to out last us. This cabin has been in the same family since it was built!

That's wonderful! Keep it going and it should last indefinitely.

Thank you for your help,
John S.


You're welcome, and feel free to come back if you have additional questions.