Underside hab floor seal (1 Viewer)

[Allanm]

We were out in the van a couple of weeks ago driving down cobbled streets in France. I remembered hearing a bang from underneath and had a good look when we stopped later. Couldn't see anything amiss at the time.
I just had another clamber underneath and found a small chunk missing from the ply underfloor. It's about the size of a 2c piece and goes in 6 or 7 mm
I don't know if this was the result of the previous bang we heard but it has left exposed wood. The underside is coated with a thin black ( I assume some sort of waterproof sealant) paint. Is there anything recommended to safely seal the bare wood with or can I use any old wood seal?
Allan

 

[pappajohn]

bituminous type paint used on garden shed felt roofs should do the trick.

paint it over the damage and a few inchs around it to be safe.

 

[Vlad The Impaler]

I would suggest some sort of bitumen based sealant.There are plenty to choose from, look in somewhere like B&Q should be plenty amongst the roofing products.

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[Allanm]

Thanks both. I'll have a look tomorrow and see what they have
Allan

 

[pappajohn]

make sure its a rubberised type...not wishy-washy cuprinol or ronson woodseal etc.

 

[Allanm]

Will do.

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[deanroofing]

Bituminous roof primer,roofing merchants will have it 25 litres
Should be about £35 and it keeps,so you could do the whole underside
When needed, you can buy 5litre tins.

 

[old-mo]

Bitumen, flexible Felt Edge Seal.. from B&Q...

Comes in one of them tube`s and use the gun...

It`s very thick, and dont set hard...

Made like that for flexible roofs..

Dont get it on your hands, it`s as sticky as all get out.. As I learnt.. :Sad:

 

[Gooney]

Bituminous roof primer,roofing merchants will have it 25 litres
Should be about £35 and it keeps,so you could do the whole underside
When needed, you can buy 5litre tins.

I would advise against painting the whole underside with bitumastic seal, IF water was to get under it, it will be held against the wood, roof seal is just that, OK on top but not underneath, in the early days of car undersealing bitumen type materials caused more rot than it prevented.

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