Water ponding on roof

Solmanic · Sep 22, 2023

I’m not sure if this is going to be a problem but it’s not ideal…

It seems the cross beam in the roof creates a not insignificant water trap on the roof. On flat ground, the slight downward slant means the center sections of the roof retain pools of water. If it’s not blown off driving then it just forms an ugly hard water mark. Over time I’m concerned how this will affect the paint.

DaveB · Sep 22, 2023

Solmanic said:
I’m not sure if this is going to be a problem but it’s not ideal…

It seems the cross beam in the roof creates a not insignificant water trap on the roof. On flat ground, the slight downward slant means the center sections of the roof retain pools of water. If it’s not blown off driving then it just forms an ugly hard water mark. Over time I’m concerned how this will affect the paint.

View attachment 7827534 View attachment 7827535

Park undercover?
Put a ceramic or wax coating on the vehicle.
Park facing uphill instead of downhill.

alvan · Sep 22, 2023

Perfect Defender style...

trobex · Sep 22, 2023

DaveB said:
Park undercover?
Put a ceramic or wax coating on the vehicle.
Park facing uphill instead of downhill.

Not a suitable solution for a car that must last 20+ years for some owners.

trobex · Sep 22, 2023

Solmanic said:
I’m not sure if this is going to be a problem but it’s not ideal…

It seems the cross beam in the roof creates a not insignificant water trap on the roof. On flat ground, the slight downward slant means the center sections of the roof retain pools of water. If it’s not blown off driving then it just forms an ugly hard water mark. Over time I’m concerned how this will affect the paint.

View attachment 7827534 View attachment 7827535

If that vehicle is flat in both X,Y plane, then you have a long-term problem and yes, your paint will fail. When scum, acids, hydrocarbons etc etc rest on your roof and through continual wetness, it will deteriorate the paint. Surely others on this forum have seen this problem if present in certain vehicles - anyone else? I live near salt, or not far from salt water and that would be a bad outcome for such conditions.

Trialmaster · Sep 22, 2023

A problem, only if you make it so. Drill a hole in the offending area!

DaveB · Sep 22, 2023

trobex said:
Not a suitable solution for a car that must last 20+ years for some owners.

With 15 ducks, 10 Corella's , 8 Kookaburra's & 4 magpies resident in my yard and countless other flying visitors.
Not to mention countless gravel/dirt roads.

Until the shed is finished in 3-6 months it will be parked outside in the open.
I have the metallic black so that paint will be getting a ceramic coat as soon as it arrives.
We are heading into summer/wet season

Simon C · Sep 22, 2023

If you brake hard it all comes rushing down over the windscreen - 'speaks from experience'

alvan · Sep 22, 2023

Simon C said:
If you brake hard it all comes rushing down over the windscreen - 'speaks from experience'

Again... very Defender style

BTW, Today I've washed the car. No puddle on the roof, just very wet, but the roof is accessible thanks to the ladder e to the lateral bars. No more acrobatics like in my Defender...

Tazzieman · Sep 22, 2023

trobex said:
If that vehicle is flat in both X,Y plane, then you have a long-term problem and yes, your paint will fail. When scum, acids, hydrocarbons etc etc rest on your roof and through continual wetness,

I guess living on a fresh clean cold island out of town has some benefits

God punishes those who live too extravagantly

Solmanic · Sep 22, 2023

trobex said:
If that vehicle is flat in both X,Y plane, then you have a long-term problem and yes, your paint will fail. When scum, acids, hydrocarbons etc etc rest on your roof and through continual wetness, it will deteriorate the paint. Surely others on this forum have seen this problem if present in certain vehicles - anyone else? I live near salt, or not far from salt water and that would be a bad outcome for such conditions.

Yes. This is my point. The ponding is when parked on flat ground.

I wasn’t thinking of getting PPF but might consider it just on the roof, which should be pretty simple.

DaveB · Sep 23, 2023

Solmanic said:
Yes. This is my point. The ponding is when parked on flat ground.

I wasn’t thinking of getting PPF but might consider it just on the roof, which should be pretty simple.

Just get a ceramic coating
Good ones last a lifetime as opposed to ppf lasting 5 years.

trobex · Sep 23, 2023

Secondary coatings are 'ok' but water ponding that deep even in dewy conditions will post a long term issue no matter what. Paying money for such an 'issue' is bullsh** in my view of a vehicle in the $120K range.

Mini2nut · Sep 23, 2023

Scuff up the roof and spray on black Raptor bed liner?

https://www.amazon.com/dp/B01CKE7B1E/?tag=globalgrena0b-20

bigleonski · Sep 23, 2023

DaveB said:
I have the metallic black so that paint will be getting a ceramic coat as soon as it arrives.

So you’ve given up calling it Donny Grey before you even have it.

DaveB · Sep 23, 2023

bigleonski said:
So you’ve given up calling it Donny Grey before you even have it.

No
I have been calling it both since the first time I saw it.
Apart from the fact Donny Gray means nothing to anyone when you say it.
I have also called it metallic gray and metallic gunmetal

DaveB · Sep 23, 2023

Simon C said:
If you brake hard it all comes rushing down over the windscreen - 'speaks from experience'

If you accelerate hard first it all runs off the back onto the car behind you.

ECrider · Sep 23, 2023

DaveB said:
If you accelerate hard first it all runs off the back onto the car behind you.

or understeer round a roundabout

DaveB · Sep 23, 2023

ECrider said:
or understeer round a roundabout

You could remove the Safari windows and fly fish in the pond.
Add a Black Sheep roof platform and you could ice fish in the winter. (Don't drill too deep) although that would stop it pooling on the roof and it would just gather in the footwell. Where this is a removable plug..>>... These Ineos engineers think of everything.

ECrider · Sep 23, 2023

DaveB said:
You could remove the Safari windows and fly fish in the pond.
Add a Black Sheep roof platform and you could ice fish in the winter. (Don't drill too deep) although that would stop it pooling on the roof and it would just gather in the footwell. Where this is a removable plug..>>... These Ineos engineers think of everything.

....throw those water bladders away folks. when going bush carry it loose on the roof.

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