1. 

   Kaylg Member

   Before I clip on the interior pvc trims, I want to fill the joins between the windows for maximum sound insulation.
   
   What would you say is best?
   

   • Silicone
   • Caulk
   • Expanding foam
   • Something else

   
   What I am referring to:
   
   
   Thanks

    

   Kaylg, Aug 27, 2020

   #1
2. 

   ElecCEng Screwfix Select

   Foam. Anything solid like caulk or mastic will just transfer sound.

    

   ElecCEng, Aug 27, 2020

   #2

   Abrickie and WillyEckerslike like this.
3. 

   Deleted member 11267 Guest

   They should have been made properly, without the need for any bodger bead to cover that up.
   I would complain and get them to make the window correctly.

    

   Deleted member 11267, Aug 27, 2020

   #3

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