Blue/green marks on floorboards. Carpet just lifted.

mattnick1981 · 31 Mar 2015

Hi everyone, I was hoping someone would be able to help with this. I've just lifted the carpets in the living room of my terrace (1905). There are strange dark marks where the knots are and mostly around the edges the floorboards are a blue/green colour.

I'm presuming that this is some sort of mould, but would I be able to sort it out with something?

I've (hopefully!) attached an couple of photos to show what I mean.

Untitled

mattnick1981
31 Mar 2015
1

Untitled

mattnick1981
31 Mar 2015
1

Thanks.

Belboz · 31 Mar 2015

Could it be knotting solution?

An expert on here will best advise

mattnick1981 · 31 Mar 2015

Cheers. We bought the house about 8 months ago and wanted to have a peek to see how the boards were, so have no idea whether it is or not!

HERTS P&D · 31 Mar 2015

As above, that's knotting solution.

Andy

mattnick1981 · 31 Mar 2015

Thanks both, not having any background in DIY, everything I see raises questions! So, no need to worry about the dark patches.

How about the blue/green colour? Can I treat that with anything? The floorboards seem in otherwise decent condition.

Cheers.

Burnerman · 31 Mar 2015

Many moons ago, there was a copper based wood preservative that was particularly good.....I'd put money on that's what the green stuff is.
Sorry, can't remember it's name! Loads better than the 'friendly' rubbish we have to use today!
John

mattnick1981 · 31 Mar 2015

That's great. Thanks for all your help!

First time I've posted on here, although have often looked, and it's been great to find out new things (and to reassure this newbie!)

diynot

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Blue/green marks on floorboards. Carpet just lifted.

Similar threads