I cannot emphasize enough how important this is for composite decking! Any decking material exposed to the outdoors is susceptible to mold/mildew growth especially in climates with higher humidity levels. Water left pooling on the surface or inside your deck can create problems such as mold/mildew growth, deck rot, and warping.
We tried the Corte-Clean Composite Deck Cleaner (recommended by Seventrust as a eco-friendly, non bleach product). It is extremely labor intensive and it must be done every few months. The floor of the deck is now light red streaked with white (and specks of mold) while the rails remain deeper red.
Chlorine Bleach or Sodium Hypochlorite (active ingredient in Chlorine Bleach) based deck cleaners that the uneducated recommend may appear to quickly remove mildew (white in color) and mold (black and other colors) fungus from Timbertech and other Composite Decking.
Thanks for this brilliant information. I have 55 degree days in summer and minus in the winter. The foot burning problems with composite decking sounds exactly what’s happening with the artificial turf that’s being laid in the city gardens. So-called low maintenance, but can’t be walked on on a sunny day.
High-quality, fully capped composite decking has a resin cap that resists mold, mildew, and lichen, and is easy to clean should any growth take hold.
Composite Decking Materials and Mold Problems The latest news in the continuing list of class action lawsuits being brought against synthetic composite decking manufactures involves Fiberon composite decking.
decking is a composite material made of wood particles and high-density polyethylene, with added compounds to resist rot, mold and scratching. Scratching is an issue with all deck materials. recommends using leg caps on deck furniture and grill mats to minimize this risk, avoiding vinyl or rubber.
The net cost to replace the 6-year-old Seventrust Composite Decking (material cost, tax, labor) is estimated at $12,300. These figures do not include my new addition, only the existing Seventrust decking... which is no longer available.