jinman
Rest in Peace
- Joined
- Feb 23, 2001
- Messages
- 21,059
- Location
- Texas - Wise County - Sunset
- Tractor
- NHTC45D, NH LB75B, Ford Jubilee
You should not have a problem on a screen porch in the shade but those plastics are know for failure and looking horrible in the coming years.
I have a neighbor with a floating dock made of aluminum with a Trex deck. It's been exposed to the Texas sun for about 10 years and still looks like the day it was delivered. I think the brand, how you support it, and the way fasteners are installed has a lot to do with the success of a Trex deck. Other copycat brands may not be as durable. Certainly, you can't put down Trex in the sun and use joists on 24" centers. 16" or even 12" joists will keep the Trex from sagging. As you said, in the shade, all those problems don't exist.
At a local zoo, they have a raised walkway over an area that is supposed to be like an African Savannah. The walkway was built with donations and is made of traditional treated lumber. There's a lot of cupping of the wood and some loose fasteners in the decking, but the walkway seems okay and plenty strong. Visitors in wheelchairs and power chairs don't seem to have a lot of problems with it even though it surely is showing wear. One thing the zoo did was to sell deck boards when they were first building the walkway. People could buy a deck board or several. They engraved the names of the donors into the planks they had purchased to form a permanent record of folk's generosity.






