Best way to tool silicone bead

[King Herald]

roofer said:

.....Gun finish is useless, mastic needs tooling to ensure a proper seal.

Hmm, no wonder 5,000,000 double glazed windows all leak then.

I'm damn sure none of those ever have 'tooled' silicon around the frames/wall inter-phase.

[roofer]

King Herald said:

roofer said:

.....Gun finish is useless, mastic needs tooling to ensure a proper seal.

Hmm, no wonder 5,000,000 double glazed windows all leak then.

I'm damn sure none of those ever have 'tooled' silicon around the frames/wall inter-phase.

Windows we have fitted are fitted by window fitters, the mastic men come in afterwards. Having recently completed 4 tower blocks, i can guarantee every window was tooled in. Its an art.