On Thu, 25 May 2017 03:34:57 -0700 (PDT), wrote:

On Wednesday, 24 May 2017 19:45:38 UTC+1, AnthonyL wrote:
On Wed, 24 May 2017 04:16:23 -0700 (PDT), tabbypurr wrote:
On Wednesday, 24 May 2017 10:28:34 UTC+1, AnthonyL wrote:
This is my second spring in this bungalow. Last winter we noted
interstitial condensation in the (boarded) attic and it was suggested
putting in roof vents would help so we did.

This year there are items in the attic, an office chair in particular,
which has mould on it.

So two issues -
Mould - why? How to cure?

water is getting in. Fix it.

Moss - why? How to clean/stop?

Remove with paintbrush.

It's taking some shifting with a metal trowel!

Wrong tool. Try a paintbrush, preferably one that's set rock hard with paint.


Maybe I should have been a bit more specific and also mention fungi
such as

https://willowhousechronicles.wordpr...g/rock-shield/

which seem to have quite a strong grip. These are interspersed with
the moss but the moss also is under the overlaps in the concrete
Marley tiles and the trowel works well to slightly lift and scrape.

The old stiff paintbrush works on the looser stuff, just easier to
keep the trowel in my hand.

--
AnthonyL