Renovating windows - consider this!

Replacing poorly insulated or leaking windows will become increasingly important in the future. SIGA window specialist Hendrik answers all your questions about window replacement and sealants in this video.
00:00 Intro Hendrik
00:18 Window renovation is important
02:05 Avoiding draughts
03:14 Differences in sealants
04:06 Hybrid sealants
05:21 Calculating the amount of sealant needed