How to install flashing to seal shed and vermin-proof?

Hello

Looking for advise please i have brought some aluminium flashing and silicone for sealing the inside and outside bottom of shed .

Before install I have cleaned out all dirt, taken out Tex screws and put flashing in.

Have installed one section see photos, installed flashing to block holes and silcone sealed along all edges.

Will this last ? Any advice?

See photos thank you

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MitchellMc

Welcome to the Bunnings Workshop community @Rona. It's wonderful to have you join us, and many thanks for your question about sealing a shed.

The aluminium flashing you’ve used is well-suited for this purpose and should last without issues. Aluminium is naturally resistant to corrosion and, with proper installation and sealing, it will remain durable over time. The silicone sealant you've used is also a good choice, as it helps to ensure that any gaps are properly sealed to prevent water and pests from entering. Adding steel wool inside for extra protection against rodents and snakes is a smart move as well. Overall, with the steps you've taken, your flashing installation should serve its purpose effectively in the long term.

Please let me know if you have any questions.

Mitchell

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Jewelleryrescue

Hi @Rona

What you are doing is so incredibly hard and I lov your work so far.

But if you targeting mice for example or snakes. They are so skilled at the smallest gaps to get through and the standard shed metal has all these corregations that a rat could get thourgh with ease. With all your work there I still can see gaps between the foil and the cement edge.

Can I suggest you buy some premixed sand and cement 1 bag per 2 meters as a guide. mix it up and take out the foil and from the inside of the shed fill the cement in between shed wall and the concrete floor in that space . The cement will block of everything including water except for floods.

Buy an inexpensive pointy trowel or a small garden trowel to aid you to get into the metal corregations and make it all smooth.

Rona

Hello Jewelleryrescue

Thanks for your reply really appreciate it,

If I put concrete in between the gaps isn't it going to rust the colorbond?

I am mainly worried long term the flashing won't last, will it corrode? I was also going to put steel wool on the inside because I know rats and snakes can't eat it, this will fill any gaps at the bottom.

Thanks Rona

MitchellMc

Rona

Hello,

I recently have started putting weather proof flashing to stop rain pouring into between carport and shed, to stop rust and the water sitting there.

I need advise for around the post please as there seems to be rain still able to get in around the post, is there a better solution to this ?

See photos

Will also put anti rust paint on bottom of shed once watertight

Thank you

MitchellMc

Hi @Rona,

Great job on using flashing with the Colorbond contours—that’s quite a bit of work to ensure the weatherproofing is done properly! It sounds like while you've waterproofed the front of the post, water might still be running down the rear of it, which is likely causing the issue. Getting behind the post to add flashing can be tricky, but you could try squirting a liberal amount of silicone sealant around the post and using a thin tool to push the silicone into any gaps at the rear. This should help create a better seal and stop the water from getting in.

Please let me know if you have any questions.

Mitchell

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