Siding Replacement Strathroy

What comes off the wall in Strathroy

Strathroy has a notably older median resident age than London, and the practical consequence for siding work is that a large share of jobs are on long-held homes where the owner is weighing a last-time-ever re-clad against a cheaper patch. That changes what belongs in a quote.

What tear-off most often turns up on a Strathroy wall:

• Wind-lifted panels on west and southwest elevations after 402-corridor squall events.
• Under-locked final courses at gable ends, which is where wind lift almost always starts.

What drives the price in Strathroy

What the crew finds once the old cladding comes off — rotted sheathing and failed wrap are the two line items that move a quote.

Strathroy is 35 km from the London base. About 30 minutes west of London along Highway 402. Travel affects scheduling, not the price, and either way it is stated before you book.

Where siding replacement goes wrong

• Reusing old trim and capping to save a few hundred dollars on a twenty-year install.

Wind-driven rain in the 402 corridor — and what it means for the trough

Strathroy-Caradoc publishes no downspout by-law. The governing condition here is wind: the town sits in the Highway 402 corridor between London and Sarnia, which is the route lake-effect squalls off Lake Huron take inland, and wind loading on west-facing elevations is meaningfully higher than it is in London.

Wind changes where roof water actually lands. Driven rain does not arrive at a trough vertically — on a west elevation in a squall it comes in at an angle and a proportion of it clears the front lip entirely, particularly on a steep roof or a short overhang. The trough can be correctly sized and still be bypassed.

That points at trough position and hanger spacing rather than capacity. A trough set closer to the roof edge on the exposed elevation catches driven water that a conventionally positioned one throws past, and closer hanger spacing on the windward run resists the uplift that works mitres loose over a few seasons.

How siding replacement is done properly

• Tear-off is the only point at which the sheathing and the water-resistive barrier can actually be inspected. Anything installed over top hides the condition instead of fixing it.
• Pre-1975 walls in this region frequently have board sheathing with gaps, or no sheathing at all behind the original wood cladding.