Can you leave cushions outside on garden furniture if covered?

[Wiifitmama]

Just took delivery of a new sofa set for our garden. It has massive cushions on it. The company suggest not leaving them outside and we have ordered a storage unit to put them in when the weather is bad or in winter etc. But the coming week looks good weather. Dry. So can I leave the cushions on and just cover it with the waterproof cover? I really don’t want to put them on and off each day!

Anyone?

It's a faff but I would remove them every time, they get mildewed otherwise.

That is not the answer I was hoping for 😩

It isn't a good idea really. However we do leave the cushions out on the sofa on the deck which has a glass roof.

Can anyone explain why? I mean, if the cover is waterproof, the rain won't get to the cushions, so why can't they be left out?

We leave the cushions on ours from about March - October (under waterproof cover) but put away in a storage box over the winter.

They are absolutely fine.

The covers aren't generally waterproof, they're water resistant. If the insides get wet you'll get mildew.

I keep mine on April to October and over winter store inside.
U I really wouldn't leave them out

Oh and do watch out that the box you have bought is waterproof and not weather proof...

Thank you. I have every intention of putting them away when weather looks bad for a few days, or certainly over winter. The box (shed) we have bought is waterproof.

The cover we have seems to be water proof. I ran water over it in the sink and it sort of repelled the water and bounced off! Nothing went through.

I would just like to be able to leave the cushions out over a few days when we know we are going to use them a lot and not put them away each night.

Just to clarify, I mean a cover that goes over the whole couch - like a big plastic green thing. Not the covers on the cushions themselves. I know those covers are not waterproof!

I think it depends on the quality of the furniture and the cover. We left our Kettler set out all winter and they still look as good as new

Yes depends on materials etc. It will still get damp even if good weather