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Stesso

Install Base Layers: Sheathing Protection

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How your roof keeps you dry 👍 #roofing #shingle #stepflashing #learn #building

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What happens here

First, apply the 'Ice and Water Shield' directly onto the 'Deck Sheathing'. This layer typically extends at least three feet past the conditioned space of the building. Next, install the 'Synthetic Felt' underlayment above the 'Ice and Water Shield', covering the remainder of the roof deck. The 'Synthetic Felt' is secured using 'cap nails' to prevent it from lifting in windy conditions.

Goal: Provide initial waterproofing and underlayment for the roof deck.

Tools and materials

  • Cap Nails — Securing the synthetic felt to the roof deck
  • Hammer — Driving cap nails
  • Ice and Water Shield — The self-adhering waterproof barrier
  • Synthetic Felt — The underlayment layer installed over the ice and water shield

What they say

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Roofdeck, apron, fascia. >> [snorts] >> Ice and water shield. This typically goes 3 ft past your conditioned space. Synthetic felt. This will go higher on the roof above the ice and water. This also gets cap nailed. Drip edge. Starter strip. Tar side up to adhere to the shingles. Don't nail too high, usually 2 to 3 in. Shingles. Overlap the drip edge or apron a half inch. Can nail between the wide lines or where the lines are tighter, it

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