Timber or steel window – cracked or loose putty

Cause

Putty is not protected by paint and has dried out

Repair

  • scrape out loose putty. Clean and prime rebates and install new putty, ensuring that there is putty between the glass and the inside of the rebate. Leave for 2 weeks before painting. Ensure that all the exterior putty and 2 mm of the glass is painted

Cause

The glazing rebate was not primed before the glass was installed

Repair

  • scrape out loose putty. Clean and prime rebates and install new putty, ensuring that there is putty between the glass and the inside of the rebate. Leave for 2 weeks before painting. Ensure that all the exterior putty and 2 mm of the glass is painted