How to stop condensation on a single skin patio?

[pjs68]

Hi all 

I have stratco single skin roof , im enclosing with aluminium shutters, and cladding on the underside of the roof .

I purchased  sarking from Bunnings, however I had to use aluminium battens for strength, the last 3 battens were the screws are  , it is water drops on the battens , not sure how to fix

help please 👍

 

 

[EricL]

Hello @pjs68 

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about stopping condensation. 

If you have enough sarking left, I propose cutting strips large enough to cover the aluminium battens used. I recommend fixing the sarking in place using Ametalin 72mm x 50m Reinforced Insulation / Ducting Tape. By covering the aluminium battens in insulation, it will prevent condensation from forming on its surface.

Let me call on our experienced members @Dave-1 and @Nailbag for their recommendations.

If you have any other questions we can help with, please let us know.

Eric

[pjs68]

Only problem with that is I have to glue the cladding and screw 

[Dave-1]

Afternoon @pjs68 

Mmmm Any chance of some further back photros as I am a little confused about the sarking. Or maybe a sketch?

Are you using the battens to hold up the sarking?

Dave

[pjs68]

 

 

 

Can do tomorrow 

the sparking is straight under the roof then the battens are over sarking, the battens are screwed from underneath into 50x50 x 6mm  aluminium angle 

cheers

[Nailbag]

Hi @pjs68 

Sorry but I''m unclear as with @Dave-1 as to understanding the issue. If you could send through some wider shots from both top and underside with any arrows to highlight the issues would be of great help.

Nailbag.

[pjs68]

Hi Eric 

mum thinking a waterproof membrane 

on the aluminium battens might work 

to stop the condensation 

The battens took about 1 hour to dry 

I didn’t want to put sarking over the battens as I’m using a construction glue on them for fixing the panels 

[MitchellMc]

Hi @pjs68,

To find a resolution to the issue, I think it's important to understand how condensation works. It's the act of moisture-laden air coming into contact with the cold aluminium surface. This causes the moisture in the air to hit the dewpoint; as a result, water accumulates on the aluminium. By installing your panels and sealing the area, there shouldn't continue to be such an issue with condensation, as the moisture-laden air will struggle to reach the aluminium.

Also, are you sealing in this patio so the moisture-laden air from outside can not enter, if so, once again, that will help resolve the issue.

Mitchell

[pjs68]

Thanks for your help 

do think putting a waterproof membrane on the battens would stop it 

it’s the last 3 

note using Bunnings acoustic panels, not designed for outside, moisture is the only thing that I’m worried about. I did put 2layers of your sarking. It’s the last meter of the roof 

Will be enclosed with aluminium shutters 

[MitchellMc]

Since this is a concern, I'd add the sarking over the aluminium and just connect the panels with screws @pjs68. Provided you pop a few additional screws in, they'll hold the sheet in position even without the adhesive.

Mitchell