What is the method for sealing an unreachable hole in a masonry wall?

Blocking an inaccessible hole in a masonry wall typically involves using an appropriate sealant or filler material that can be injected into the hole to create a barrier.


One option is to use expanding foam sealant, which can be sprayed into the hole to fill the space and expand to form a tight seal.

Another option is to use hydraulic cement or mortar mix, which can be mixed to the desired consistency and forced into the hole using a caulking gun or trowel.


Once the hole is filled, smooth out the surface of the sealant or filler material to create a flush finish with the surrounding wall.

This method provides an effective solution for blocking inaccessible holes in masonry walls, preventing moisture infiltration and other potential issues.

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