Apply Waterproof Underlayment
2:45
25:42
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At 2:45 in
Building A MASSIVE Deck Part 3 - Roof Framing and Sheathing
What happens here
The final step involves applying an underlayment to the sheathed roof. The video shows the installation of Titanium PSU 30 synthetic underlayment, which is peel-and-stick and provides a robust, high-performance waterproof barrier. This critical layer protects the roof deck from moisture penetration and prepares it for the installation of the final roofing material, ensuring long-term durability and weather resistance for the new outdoor living space.
Goal: Provide a waterproof barrier for the roof deck.
Tools and materials
- Roller — Ensuring proper adhesion of peel-and-stick underlayment
- Safety Harness — Ensuring worker safety while working on the roof
- Synthetic Underlayment — Creating a waterproof barrier over the roof sheathing
- Utility Knife — Cutting underlayment to size