Filling holes on exterior wall

5 May 2014
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United Kingdom

I am currently working on the outside of my house and have discovered two holes that will require filling and I was wondering what I should use.

1. The first hole is around the boiler fleu at the back of the house and is about 10mm all the way round. I was thinking expanding foam or silicon but was concerned about the heat. What would you recommend?

2. The second hole is between the wooden fascia board and brick. This hole is about 5-15mm across and about 100mm long. For this I was thinking silicone or Toupret Murex Exterior Filler or something similar. What would you recommend.

Thanks for any help you can provide.
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