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Stesso

Roof Underlayment: Protecting the Roof Deck

1:16
2:04
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At 1:16 in

Construction shortcuts that can lead to failure 👎 #learn #carpentry #failures #roofing #siding

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What happens here

This step covers critical roof underlayment issues. The demonstrator shows that without ice and water shield or roofing felt installed beneath the shingles, water that penetrates the shingles can directly soak into and damage the roof deck. He demonstrates this by pouring water onto a section of the roof deck that lacks underlayment. The correct practice involves installing these protective layers to safeguard the roof deck from moisture damage.

Goal: Install proper roof underlayment (ice and water shield or roofing felt) to protect the roof deck from moisture damage.

Tools and materials

  • Ice and Water Shield — A self-adhering membrane that provides waterproofing, especially at eaves and valleys
  • Roof Decking — The base layer of the roof structure
  • Roofing Felt — A water-resistant barrier installed over the roof deck before shingles
  • Water Bottle — Demonstrating water penetration

What they say

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driven too shallowly, it is much stronger. If all the nails for the sheathing are missed , then the sheathing will not do much good . For your roof, if you don't install ice and water protection or roofing felt and water gets under your shingles, it will seep in and damage your roof tiles. If starter tape is installed or if the nails are low, water can blow under your shingles. Or

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