Project #165 | 2-Phase Roof Deck Leaks Solved with One Duradek Solution – Simcoe, ON

PROJECT: Residential Roof Deck Leak Solution – Simcoe, Ontario


This wood deck was situated over living space and had two methods of moisture management in place, yet it was still leaking in all of the critical detail areas.

The first level of protection was waterproofing through a traditional felt and tar on the roof under the deck boards. The secondary water management approach was utilizing a ceiling system that caught water and re-routed it to a trough. While this was intended as a ‘back-up’ system, it was clear that neither approach was working to protect the living area below from leaks.


Duradek dealer, Lakeview Deck and Rail knew what needed to be done to resolve the leak issues for good. To start, they tore off all of the existing deck and failed waterproofing.

They established a slope with new framing on one foot centers, and installed all post blockings. Substrate preparation requires untreated plywood which is an environmental advantage over chemically treated wood the new substrate was prepped by sheeting 3/4″ select fir T&G plywood and filling all joints to make it perfectly smooth for the application of the Duradek Ultra Cork Macchiato vinyl.

Lastly, the installation of an aluminum picket railing system gave the homeowners a beautiful, low-maintenance new deck.


The homeowners on this project wanted a reliable solution, but at a reasonable price. To do the job right would be a pricy undertaking, so the homeowners carefully considered their options. After a year of frequent questions to Duradek dealer, Lakeview Deck and Rail, the homeowners decided to go ahead with Duradek. After the project was completed, these customers provided unexpected bonus tips to the crew which showed how very happy they were with their new, leak-free Duradek deck and the professionalism of its installers.

View or download the .pdf version of Case History #165 for the complete case history with installer details and before and after images.