Installation Guide
Page 12
Care and Cleaning
With proper installation and care, TimberTech products will provide years of outdoor living pleasure.
For most current recommendations or to download a PDF, visit http://www.timbertech.com/warranty-and-care/care-and-cleaning
into the surface texture. DO NOT allow the treated area to dry 
before rinsing throughly as this will allow dirt residue to dry in 
the surface texture.
Thoroughly rinse the treated area with clean water, then allow 
the area to completely air dry. Note that any residual cleaner 
can leave a difficult to remove surface film. Always rinse 
thoroughly and never allow the cleaner to dry or evaporate on 
the surface prior to rinse.
Recommended Products for TwinFinish
®
, 
ReliaBoard
®
 and DockSider
™
 Collections
Although TimberTech products are low-maintenance, we 
recommend periodic cleaning to help maintain the beauty 
of the product. TwinFinish, ReliaBoard, and DockSider are 
composite products and cleaning is not the same as for capped 
composite products.
These recommended products can be purchased at many 
hardware stores including Lowe’s and Home Depot as well 
as online. Always make sure to read the cleaning product 
manufacturers specific information before using any product 
on your TimberTech Deck and follow their instructions.
Power Washing
A power washer can be used when cleaning TimberTech 
products. The recommended maximum pressure is 1500 psi 
for TimberTech decks. A fan tip nozzle should be used along 
with the proper cleaning product. Spray in the direction of 
the brush/grain pattern to avoid damaging the product. Use 
caution not to damage the material and always take the proper 
safety precautions when operation a power washer. 
Cleaner
The cleaners TimberTech recommends for periodic cleaning or 
use with ReliaBoard, TwinFinish, and DockSider include:
  • Wash Safe Spray and Clean Composite Deck Cleaner
  • Resist Mist Composite Deck Cleaner
  • Corte Clean
  • Super Deck Composite Deck Cleaner
  • Thompson’s Water Seal — Oxy Action
Dirt, Grime, Tannin and Mildew Stains:
TimberTech wood/plastic composite products are formulated 
to inhibit mildew growth and minimize staining. Rinse off 
your TimberTech products periodically with a hose. Even if it 
appears clean, it is important to prevent build-up of pollen/
debirs. Mildew stains may occur where moisture, pollens, and/
or dirt are present. Mildew needs a food source to grow, which 
can be grass, pollens, dirt, debris, wood and wood resins.
Recommended Products for Terrain, 
Tropical and Legacy Collections
We know you want to keep your TimberTech Deck clean and 
looking its best, so here are a few guidelines on the best 
products and methods to use to keep your TimberTech Deck 
looking great.
These recommended products can be purchased at many 
hardware stores including Lowe’s and Home Depot as 
well as online. Always make sure to read the cleaning 
product manufacturers specific information before using 
any product on your TimberTech Deck and follow their 
instructions.
Brushes
The correct brush is very important so that it not only cleans 
the surface, but also does not damage or dull the plank 
surface. We recommend using either the Quickie
®
 Bulldozer 
Deck Scrub or a medium plastic bristle deck brush. DO NOT 
use a natural fiber deck brush on capped composites as 
they can dull the surface.
Cleaner 
For general periodic maintenance cleaning, use a dilution 
of mild liquid soap and water. Dawn Ultra
®
 has shown 
best results. For more difficult to remove dirt, mud, clay, 
or surface contamination, use an all purpose cleaner like 
Chomp
®
 Pro Gutter Cleaner or Zep
®
 Fast 505.
*Note that composite deck cleaners such as Corte Clean
®
, 
Thompson’s
®
 Water Seal
®
 — Oxy Action, Olympic
®
 Deck 
Cleaner, or other cleaners specified as composite deck 
cleaners, in powder or liquid form, should not be used 
with TimberTech Terrain, Tropical, or Legacy Collections. 
TimberTech Terrain, Tropical, and Legacy Collection deck 
planks are a capped composite material, the cap of these 
products are not compromised of a wood/plastic composite.
Cleaning Procedures:
In preparation for spot cleaning as well as full surface 
cleaning, you will need a bucket of water, one of the 
recommended scrub brushes with an extension handle and 
one of the recommended cleaners.
Work in small manageable areas. Avoid cleaning in direct 
sunlight, the UV and heat will dry the surface quickly as you 
attempt to clean.
Saturate the area with one of the recommended cleaners 
and allow the cleaner to soak for 30-60 seconds. DO NOT 
allows the cleanser to dry or evaporate before scrubbing. 
Rinse area thoroughly with water after scrubbing.
Using the recommended brush and extension handle, scrub 
using moderate downward pressure, first scrubbing in the 
direction of the grain and then against the grain getting 










