On Thursday, 31 January 2019 15:26:41 UTC, Martin Brown wrote:
On 31/01/2019 15:14, Rosanne wrote:

My porch was foolishly built with no damp course or brick support
wall. As such the timber used rests directly on the ground. On the
exposed side fungus is now coming through on the inside. I will
redesign the footings, but in the meantime can any body suggest a
tried and tested fungicide either proprietary or home made ?

You really need to ID the fungus. It is not good news if it is wet rot
but it is even worse news if it is dry rot. Whatever it is don't let the
fruiting bodies get to the stage of producing spores and don't delay.

Once the weather warms up the fungal hyphae will be growing again and
they can cover 1m/year in all directions or more if you are unlucky.

You can DIY the ID but unless you have seen the real thing it is
difficult to identify wood rot fungi reliably since they almost never
look like the textbooks and there are loads of less common ones as well.

https://www.diydoctor.org.uk/project...-diagnosis.htm

You probably need specialist advice to get it treated (and the right
answer could well be rip the entire thing down sterilise with a powerful
licensed fungicide and then rebuild with pressure treated lumber and a
proper damp course).

I wouldn't trust the stuff in the sheds to work and nothing DIY stands
even the remotest chance of working. Usually the advice is remove all
rotten wood and at least 30cm beyond into sound wood then treat the rest
with something suitably nasty (and keep a careful eye on it).

http://wiki.diyfaq.org.uk/index.php/Rot

Creosote is very effective IIRC. Whatever you do you'll need to cut out the rotten bits.


NT