ᐅ Installing Flooring on a Balcony

Hello,

We have an additional balcony in our new build that was sealed with a membrane over the insulation. Around the balcony is a stone edging, against which the membrane is laid.

What is the best way to install flooring here using WPC decking boards? I would like to raise the decking to the level of the stone edging to create a flat surface. But how do you attach supports or pedestals in this case? Drilling into the membrane would probably be a bad idea ;-)

Or can this be filled with other materials and the WPC boards simply laid on top?

Hello, questioner.
WPC decking boards are always fastened; unlike heavier concrete paving slabs, lighter boards (whether WPC or wood) must always be secured to a supporting structure.
For WPC boards, manufacturers often provide suitable supports; otherwise, you need to work with battens on which the WPC boards are fixed using appropriate clips or fasteners.
If height adjustments are still not sufficient, the only solution is to align the side stones to the corresponding top edge of the surface.
----------------------------
Best regards, KlaRa

Are WPC decking boards now considered the standard for roof terraces? They were recommended to me yesterday for our roof terrace as well. At first glance, however, they seem quite expensive.

What options do I have for covering a 19.55m² (210.4 sq ft) roof terrace in a cost-effective and weed-resistant way? Currently, we have small concrete slabs where weeds grow through everywhere, and we spend about two hours every quarter dealing with it. Definitely never want to do that again!

The roof terrace won’t be used very often, so we would prefer an affordable solution here. I don’t think WPC is the right choice, is it? What would be the alternatives?

R.Hotzenplotz schrieb:
Are WPC decking boards considered the standard choice for rooftop terraces nowadays? I was recommended them for our rooftop terrace just yesterday. At first glance, they seem quite expensive to me.

What options do I have to cover a 19.55m² (210 sq ft) rooftop terrace in a cost-effective and weed-resistant way? Currently, we have small concrete slabs, with weeds growing between them everywhere, and it takes about two hours every quarter to deal with it. Definitely never want that again!

The rooftop terrace will not be used very frequently, so we would like to choose a cost-efficient solution here. I don’t think WPC is the right choice for that, or is it? What are the alternatives?

You shouldn’t just consider the upfront price. We have to maintain our terrace every year, which costs time and money. Plus, you might get splinters from wood. Although wood does have its own charm.

Then take a look at WPC decking after 5 years. It doesn’t look new anymore either, and some types (possibly the cheaper ones?) suffer from sun exposure and develop a grayish haze.

Is it possible to install Xenox granite porcelain tiles in a way that prevents weed growth? The architect mentioned some kind of bags that could be placed underneath, so that there is no soil where anything can grow.