Subject: Deck Repair
Date: Fri, 25 Oct 2002
I have an exterior deck which is built on 2x12 joists which extend out
from the floor of our second story bedroom. During a home
inspection, it was determined that there was decay in the bottom or the
deck boards where they met the joists. When I removed
the deck boards, I found much more extensive damage to the joists than
expected. There were sections of the joists, which had
damage from both dry-rot and termites. I have removed most of the
damaged area, which extended up to 2 deep into the joist
from the top. These joists cannot be replaced, so I need to repair them.
What is your recommendation for performing this repair?
Thanks in advance for your assistance,
It's important that you stop the rotting process before you begin the
actual joist repair. To do this we suggest you use our CPES (Clear Penetrating
Epoxy Sealer), brushed/sprayed generously on the deteriorated areas.
This will also harden any soft or punky wood that may remain, and serve
as a bonding surface for the structural filler. Since you are having
this problem, I would also take the opportunity to apply the CPES to
whatever parts of the joists you can access...as a preventive measure.
Following the application of the CPES, you then apply either our Fill-It
Epoxy Filler (cures white) or a mix of our Layup & Laminating Resin and
sawdust (cures to the color of the sawdust) to the vacant areas. Either
of these materials will bond at the molecular level with the
CPES-treated wood and produce a structural repair. The compressive
strength of either of these products exceeds 20,000 lb/sq/in, which is
far harder than wood. They will never crack or pop out.
For the CPES, you can figure on getting about 150 sq ft per gallon
coverage. For the filler, it's strictly a volume issue -- as much as you
need to fill the vacant areas.
Both these products are professional-grade and available only directly
from us. Please feel free to come back if you have additional questions.