Install the underlayment along the roof decking.
How to install synthetic roof underlayment deck.
Roof underlayment prevents the roof deck from being exposed to the elements before or while the roofing material is being installed.
Synthetic underlayment also provides better traction for roofers than felt underlayment in both wet and dry conditions making it a safer product to work with during installation.
The underlayment adds a layer of essential protection between roofing shingles and the roof deck.
If necessary adjust how the material ls aligned to keep it hanging over the decking material.
Step 4 rolling the underlayment.
Install drip edge at the roof eave edges.
It has exceptional dimensional stability compared to standard felt underlayment.
Step 5 nailing the underlayment.
For many years traditional roofing felt was the most popular underlayment.
Smooth out the underlay to prevent any bumps.
Felt underlayment can wrinkle when it becomes wet and telegraph those wrinkles through to the shingles applied over it.
Conclusion by offering tear resistance protection from the elements and a safer surface area to walk on synthetic underlayment outperforms felt underlayment.
When most people think of roofs they typically think of shingles or metal roofing.
Diamonddeck is a synthetic scrim reinforced water resistant underlayment that can be used beneath shingle shake metal or slate roofing.
Synthetic roofing underlayment is to be laid horizontally parallel to eave with printed anti slip side up starting at the bottom of the lowest roof eave with a 1 5 underlayment overhang at the eave covering the pre installed eave drip edge.
They also protect the wood roof deck during installation.