Hello XXXXXXXXXXX,
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Drilling holes is the easiest and has the least amount of impact when blowing insulation into an existing wall. There are plates at the top and bottom of a wall that prevent access from these points.
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Best of Luck, Brian
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I am entitled to a government grant, was inspected and would have gone ahead.
However, 3 years ago I had a very expensive coating on the walls of my house.
It had a 25 year guarantee which promised that if had any building or other work done the company would reinstate the walls free of charge.
Fortunately I checked first and the company concerned had gone oyt of business and the 'receivers' said nothing could be done about the guarantee.
Therefore I do not want my very large 3 story gable end wall with a beautiful finish covered in holes which cannot be filled in the correct material or colour.
I have been told that sometimes the insulation can be introduced from the top by removing some roof tiles.......?
XXXXXXXXXXX,
I understand your concern. I'm not sure if the expensive coating is on the outside or inside, but I would have the holes drilled on the opposite side. Unfortunately, removing roof tiles will not give you access to the walls, because there is a top plate on the wall that is part of the framing. I wouldn't recommend drilling a bunch of holes in this top plate since it will weaken it.
The house is 100 years old and has brick and brick cavity. Do you think the plates will still be there?
Yes, the wood framing is the back-up support for the brick and would have a top plate, which would be in the way. I would recommend removing the interior base trim at the floor and drilling the holes there, which you could cover back up with the base trim afterwards. You could also drill holes at the top of the interior side of the wall and install crown molding to cover the holes afterwards.
Architect
Licensed Architect- 12 years, L.E.E.D. AP, Former Remodeling Contractor- 10 years