Best way to fill external gap

[Ellsa100]

There is a brick wall at the boundary between me and my neighbours house. This wall is made of two sections and there is a ~1.5 inch gap between the two sections - see photo. What’s the best way to fill this? Expanding foam?

Thanks.

 

[foxhole]

Why do you want to fill it?

Expansion Joint Foam - 10m Coil - Miothene

This Expansion Strip consists of polyethylene foams for a variety of expansions and movement joints. Low resistance joint filler, manufactured from high quality closed cell polyethylene and has been specifically designed and developed for all clay fired brickwork, calcium silicate brickwork and...

justthejobsupplies.co.uk

 

[Ellsa100]

Why do you want to fill it?

Expansion Joint Foam - 10m Coil - Miothene

This Expansion Strip consists of polyethylene foams for a variety of expansions and movement joints. Low resistance joint filler, manufactured from high quality closed cell polyethylene and has been specifically designed and developed for all clay fired brickwork, calcium silicate brickwork and...

justthejobsupplies.co.uk

For privacy

 

[freddiemercurystwin]

For that you would use a backer rod to fill in most of the gap and then apply a sealant over the joint to finish it, same on the other side normally eg

Everbuild Joint Backer Rod Polyethylene Foam Gap Filler 10m All Sizes | eBay UK

Everbuild Tecnic Joint Backer Rod is a non-absorbent compressible grey closed cell polyethylene foam backup material. Reduces sealant usage.

www.ebay.co.uk

+

https://www.screwfix.com/p/no-nonsense-291-builders-silicone-grey-310ml/912gr

 

[foxhole]

For that you would use a backer rod to fill in most of the gap and then apply a sealant over the joint to finish it, same on the other side normally eg

Everbuild Joint Backer Rod Polyethylene Foam Gap Filler 10m All Sizes | eBay UK

Everbuild Tecnic Joint Backer Rod is a non-absorbent compressible grey closed cell polyethylene foam backup material. Reduces sealant usage.

www.ebay.co.uk

+

https://www.screwfix.com/p/no-nonsense-291-builders-silicone-grey-310ml/912gr

Gap 30mm+?

 

[Ellsa100]

Gap 30mm+?

Actually gap is 15-25mm (not the same width the whole way). Need it to be about 1300mm in height

 

[Ellsa100]

Actually gap is 15-25mm (not the same width the whole way). Need it to be about 1300mm in heigh

Given the gap is not the same the whole height, should I get 25mm backer rod (as 25mm is the widest part) and will I be able to easily compress the backer rod to say 15mm where the gap narrows?

thank you!

 

[foxhole]

The 12mm expansion joint foam can be pushed in without cutting simply hold against the gap with a flat paint scraper push into the gap all the way down give you about 100mm inside the gap( folded double)