Replace terrace beams?

[magdogg]

I think the picture explains the situation, do I have to replace these or is there any way to fix them?

Best regards,
M

 

[Magnus E K]

If they are not rotten (soft, compromised structure) or emitting an unpleasant odor that is noticeable, nothing needs to be done.

 

[fribygg]

If the wood is hard and healthy you don't need to replace it, wash them off with deck cleaner or green-free if the discolorations bother you.

 

[magdogg]

If the wood is hard and healthy, you don't need to replace it. Wash them with decking cleaner or green-free if the discolorations bother you.

Aha, so this is not mold in other words?
Nice to hear anyway!

 

[fribygg]

Whether you have regular dirt, black mold, or green algae on the underside of the deck, it is harmless and usually completely possible to wash away without strong chemicals or the need to replace the wood.
Step 1 is cleaning with warm water, Yes dish soap, and scrubbing with a brush if you want it clean.