- Impact from a stone or other object smashing the glass in a ‘bullseye’ effect
- The result of a break-in
- Extreme weather or changes in pressure causing a crack
- The sealed unit being ‘blown’, meaning that it’s no longer energy efficient due to air leaking out
Talybont
Tal-y-Bont is a tiny town in Conwy County Borough, Wales and also lies in the Conwy Valley, west of the River Conwy, on the B5106 road, six miles from the town of Conwy to the north, and six miles from Llanrwst to the south, as well as in the community of Caerhun. It lies beside the town of Dolgarrog to the south, as well as below the tiny negotiation of Llanbedr-y-Cennin to the west. The 'Bont' (the mutated kind of pont, Welsh for "bridge") in the name possibly describes the bridge over the Afon Dulyn, a tributary of the neighboring River Conwy, which runs through the town. Tal-y-Bont is the starting point for the road to Llyn Eigiau and also the southern Carneddau mountains. Accessibility to the northern end of the Carneddau Range and also the Roman road over to Aberystwyth can likewise be accomplished by following the road up from Tal-y-Bont through Llanbedr-y-Cennin - which gets on the eastern edge of the Snowdonia National Forest - and taking a left fork at the pub, Ye Olde Bull Inn, in Llanbedr. Pedestrians can access peaks in the north end of the Carneddau Range such as Drum as well as Foel Fras, and then continue south east to get to Carnedd Llewelyn.