Eavestrough
Eavestrough, Fascia and Roof Drainage
Everybody treats it as trim. It is drainage — and an undersized trough on a big roof is a wet basement waiting for the right storm.
Eavestrough gets treated as trim — something you pick to match the fascia. It is not trim. It is the thing that decides where every litre your roof sheds actually ends up, and whether your basement stays dry.
Size is not a style choice
Standard five-inch trough is fine on a modest roof in ordinary rain. Put it on a large plane, or a steep pitch that accelerates the runoff, or under a valley concentrating two planes into one channel, and it simply overflows.
And this corridor is wet. Between roughly 770 and 900 mm of rain a year on top of everything the winter delivers — Tillsonburg is the wettest of the lot. Six-inch trough with bigger downspouts on those roofs is not an upsell. It is the correct part.
Then there is the ice
In the northern half of this service area your trough spends part of every winter carrying ice rather than water. That is real structural load hanging off your fascia, and it is why hanger spacing and fastener choice matter far more in Goderich than they do in Leamington.
It is also why we look at the fascia whenever trough comes off. Rotten fascia behind old eavestrough is extremely common, completely invisible until the moment it is exposed, and impossible to fasten anything to.
Where the water goes next
A downspout emptying against your foundation is a basement problem with a roof cause. Extensions and a discharge point well clear of the wall cost very little and fix something that is genuinely expensive to solve from the other end.
It is the least glamorous thing on this website and one of the highest-value hours anybody will spend on your house.
Talk to a Woodstock roofing contractor
Three things get us most of the way there: which town you are in, roughly when the roof was last done, and what you are actually seeing — a stain on a ceiling, granules in the eavestrough, shingles on the lawn on Sunday morning. That is usually enough to tell you whether this is a repair, a claim, or a roof that has quietly reached the end, without anybody driving anywhere.