Experiences with WPC terraces

Always remember with the hollow chamber... What happens in winter at below zero degrees? When moisture in the hollow chamber turns to ice and expands.....

Back then, when I dealt with it, I saw many damage patterns that looked like they had something to do with it (cracks, splits, etc.)

Of course, it could also have been a coincidence because I was basically looking for that.
That's why we went solid....
I would do it exactly the same way again today...

I’m chiming in here: I am also interested in your experiences with WPC, especially the comparison between hollow chamber and solid. Particularly when planning to screw the boards directly onto battens and not use clips.

You should also note that manufacturers require a slope of 2 percent for hollow chamber boards. This is to prevent water trapped in the chambers from freezing and thus damaging the board.
We had a hard time accepting a slope of 8 cm for a 4 m terrace; that seemed too much to us, even the beer in the glass would be tilted.
Therefore, solid profile was ordered.

You should also note that manufacturers require a 2 percent slope for hollow chambers. This is to prevent water that enters the chambers from freezing and thus destroying the decking. We had difficulty with a 4m terrace having a slope of 8cm; that seemed too much to us, even the beer in the glass would be tilted. That’s why full profile was ordered.

I would always make a slope of at least 1.5% to 2% away from the house on a terrace. No matter what the manufacturer says. I definitely don’t want standing water at the house wall during heavy rain. And 2% slope is (if done evenly) 2% everywhere. Whether your terrace is 2m or 20m long. You don’t even see the 2% in the beer glass. Unless you have a 4m glass.

Can only agree with .

Kann @Spoony80 only agree.

Me too. By the way: The manufacturer of my terrace boards generally recommends at least 1% slope – regardless of whether hollow chamber or solid board.

Hollow chamber wpc are probably not so heat sensitive in summer!