Proper Roof Underlayment Installation

If it gets wet it will wrinkle making it harder to shingle.

Proper roof underlayment installation.

For vaulted or cathedral roof construction provide a free ventilation path from eaves to ridge between all rafters. If you lay the felt perfectly straight you can use its lines instead of horizontal chalklines to align the shingles. Observe and comply with all osha and other safety standards and codes that apply to roof safety. Cut the membrane into 10 to 15 foot lengths and re roll loosely.

Roof underlayment prevents the roof deck from being exposed to the elements before or while the roofing material is being installed. Check this out. Installing a roof is much more than just nailing shingles onto some boards. Synthetic roofing underlayment installation guidelines and safety precautions.

Ideally the roof covering material would be installed as soon as possible but in reality the roof may be protected by only the underlayment for days weeks or sometimes months. It starts with installing solid decking usually plywood or oriented strand board but that is not waterproof. Appropriate personal safety equipment and work. Fall protection devices should always be used when working on roofs.

Underlayment flashings and shingles all work together and must be installed in the correct order. Install baffles providing a minimum of 1 inch of clear space between framing and or under roof decking at eaves to ensure that ceiling or roof insulation does not block ventilation paths. Do not use felt as a temporary protection against rain. How to install roofing underlayment the proper way.

However while a self adhered underlayment is a significant leg up against harsh conditions if it is not properly installed the roof is still vulnerable to leaks. I want to be.