Know Your Roof

A simple glossary of terms Roof Glossary

The Roofing Process.

Your professional roofing contractor should be skilled and trained to provide proper installation. This is critical to long term performance. The contractor should be trained in installation techniques that cover the following areas:

  • Proper reroofing techniques
  • Overall inspection ยท Deck preparation
  • Usage and application of underlayment
  • Secure attachment with the proper amount and location of nails
  • Metal drip edge installation
parts of a roof
  • Shingle application and the proper offset
  • Valley construction, which kind to use, shingled or metal, and the proper application
  • Proper flashing installation around pipes and vents
  • Proper ventilation
  • Hip and ridge installation and the special techniques that finish the job properly
Why Ventilation is Important:

When a house has been properly ventilated, a positive airflow is created. This allows the house to breathe and helps prevent moisture build-up. That's why proper attic ventilation is a serious issue that should always be considered when re-roofing your home.

Normal household activities can wreak havoc on an attic and ultimately, a roof. Showers, laundry, dishwashing and cooking all generate moisture that can damage insulation, rafters, wood deck, underlayment and shingles during winter. Summer heat buildup in the attic promotes premature aging and cracking of wood and roofing materials. All of which could shorten roof life. For maximum roof protection, a well-ventilated attic is the key.

In warm weather, proper ventilation prevents the attic from becoming a hot box that spills unwanted heat down through the attic floor into the living area (even if the attic is insulated).

In cold weather, proper ventilation helps prevent moisture from condensing on the insulation, structural wood, shingles or roof deck. Moisture-soaked insulation becomes ineffective, thereby causing excess energy usage. Condensation on wood leads to rotting and expensive repairs. While those are the most important reasons for proper ventilation, they aren't the only ones.

Excess attic heat causes premature shingle failure and can invalidate the shingle warranty. Excess moisture in the home causes mildew and drywall damage. Moisture problems can cause paint to peel and siding to warp.

Balanced airflow keeps attic temperatures from reaching extremes. Vents allow outside air to move through the attic. The result is a cooler, drier attic, which means a longer lasting roof.