How to seal window gaps?

badmojo

I was checking the windows for leaks during winter and found several windows with gaps on the rubber gasket. Is this normal or should these be sealed?

EricL

Hello @badmojo

Can you please post a photo of the bottom of the window seal. I would like to see if the bottom seal has been cut or ripped off due to damage. This is the first time I've seen this type of seal. Is it loose? Can you pick it up and shift it upwards? If you can, its possible that some sort of clip may have been attached at the end to prevent wind from coming through. Can you please check the other windows to make sure that it is just that window and that there are no others that have the same issue.

Once you've checked the other windows and have posted the photo, we'll be able to assess the condition of the window and offer recommendations on how to proceed.

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

Eric

badmojo

Hi @EricL, thanks for the immediate response. Please see below bottom of said window.

Other window with good seal. This is the top and bottom views.

EricL

Hello @badmojo

Thanks for sharing those extra photos of your window. I still have a suspicion that something was installed inside that gap. If you wish to cover that gap to prevent critters from coming through, I suggest using Parfix 340g Expanding Foam Filler. Please note that the expanding foam will multiply to three times its size so be careful on the amount that you use. Once the foam cures you can use a Craftright 18mm Snap Off Knife to trim the foam.

The good news is that the foam can be removed should you need to access that corner. You can use a sharp BBQ stick to break it apart and take it out piece by piece. The advantage of course is that it is weatherproof can be sanded down and painted if you wish. It will stop the rain and any cold air that may be passing through that gap.

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

If you need further assistance, please let us know.

Eric

Dave-1

Good morning @badmojo

I was wondering if those gaps will be moving when the window is opened? I was just looking at rubber seals and was going to recommend one but there are a few types that bunnings has that could work "Goliath Rubber Seal I was thinking more of if the window is opened then the foam that @EricL has mentioned might wear away so the rubber might be an option.

Dave

badmojo

Appreciate the recommendation @EricL. Would applying silicone work as well?

badmojo

Thanks @Dave-1. This is a sliding window and this is the part where it is permanent and stationary. I was also thinking to apply a new rubber seal but I have to remove both.

Dave-1

Afternoon @badmojo

A new seal sounds like a good idea, a glazier place may have the correct type of seal for your window if yougo in and show them your photos if you are lucky.

Dave

EricL

Hi @badmojo

Technically, yes it would work but the vertical application might be difficult and result in the silicone drooping and sliding down the glass. If you can lay the glass down for a few hours, you'll be able to apply the silicone to that spot.

If you need further assistance, please let us know.

Eric