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Frequently Asked Questions (FAQ)

1. What is sheathing (or decking)?

Sheathing (or decking) is the part of the roof to which your roofing system is attached. Sheathing is typically made of plywood, OSB, 1″ plank, 26 gauge metal, or concrete. (see Figure 1)

2. What are roof eaves?

Eaves are part of the perimeter of your roof. They are oriented parallel to the ground. (see Figure 1)

3. What are roof gables (or rakes)?

Gables are part of the perimeter of your roof. They are oriented from your eaves toward the peak of your roof. (see Figure 1)

4. What are roof valleys?

Valleys are the intersection of two roof facets. Rainwater typically collects in larger quantities in these sections. (see Figure 1)

5. What are roof ridges?

Ridges are located on the peaks of your roof where two roof facets meet. (see Figure 1)

6. What are roof hips?

Hips are located where the sides of two roof facets meet. (see Figure 1)

7. What are fascias (architectural)?

Fascias are located below the roof edge. They are either covered with metal or plastic cover or painted. (see Figure 1)

8. What is a square?

A square is a unit of measurement used to represent 100 square feet.

9. What is pitch (or slope)?

Pitch or slope is a measure of the steepness of a roof. It is measured in the rise over a 12-inch run. The typical roof slope in Central Florida is 6:12.

10. What are pipe flashings (or boots)?

Pipe flashings or boots are roof flashings used to cover sewer exhaust pipes. (See Figure 2)

11. What are exhaust flashings (or gooseneck vents)?

Exhaust flashings are roof flashings used to cover bathroom and kitchen extractor exhaust ducts. (See Figure 2)

12. What are drip edge flashings?

Drip edge flashings are an integral part of your roofing systems that help divert water from running down your fascia. Florida Building Code requires that new drip edge flashings are installed whenever you have your roof replaced.

13. What are wall flashings?

Wall flashings are formed sheet metal used to prevent water intrusion along the exterior walls of a building. For newly constructed buildings, wall flashings are typically covered by exterior siding and/or stucco. For existing buildings, the best approach is to use a two-part flashing system that includes a counter flashing with sealant. (See Figure 3)

14. What is underlayment?

Underlayment is a secondary water barrier that acts as both temporary waterproofing for your roof before your primary roofing system (shingles, tiles, or metal) is installed and then as a backup waterproofing system after your primary roofing system is installed. (See Figure 4)

15. What are Starter Shingles?

Starter shingles are the first course of shingles required to start the process of installing shingles up your roof. Starter shingles are installed at the eave of your roof to help prevent shingle blow-off during high winds. They are typically required to be installed along your eaves and gables (or rakes) to provide your home with maximum wind performance. (See Figure 4)

16. What are Hip & Ridge Shingles?

Hip & Ridge shingles are the shingles that cover your hips and ridges. (See Figure 4)

17. What is Ice & Water Underlayment?

Ice & Water underlayment is a self-adhered secondary water barrier typically used to provide additional protection in the valleys of your roof. Ice & Water underlayment can be used around roof penetration, along your roof’s eaves and gables, or cover all of your roof’s sheathing. (See Figure 4)

18. What is attic ventilation, and why is it important?

Attic ventilation is typically a two-part system that consists of intake ventilation and exhaust ventilation. Intake vents are usually found on your soffits (under the eaves of your roof), and exhaust vents are typically found on top of your roof (either along your ridges or offset from your ridges). Florida Building Code requires a minimum 150:1 ratio of ventilation area to the attic area. The ventilation area is split between your intake and exhaust vents. A properly ventilated attic not only meets Florida Building Code, but it can reduce the load on your home cooling system and extend the lifespan of your roof. (See Figure 5)

19. How many nails are required to fasten each full asphalt shingle?

Typically, a minimum of six nails is required to fasten each full shingle.

20. How much does it cost to replace your roof?

It depends on the dimensions of your roof and the roofing system you would like on your roof. Homewyse.com is an excellent resource for getting within a reasonable range for your roof replacement.

21. How do you identify a qualified contractor?

We recommend a 4 step process:

  • Verify they have their company registered to do business in the state of Florida.
  • Verify they are licensed to work as a Roofing Contractor in the state of Florida.
  • Verify they have a current Worker’s Compensation insurance for their employees.
  • Verify general liability by requesting a certificate of insurance from the contractor

22. What is a system warranty?

A system warranty refers to the installation of multiple roof components from the same manufacturer. Manufacturers offer extended warranties for using several components because they are specifically designed to work together and maximize the lifespan of any product when installed correctly.

23. What is a written warranty?

After a roof replacement, you should receive two warranties, one from the manufacturer and one from the contractor. The warranty from the manufacturer covers the materials used. The warranty from the contractor is for the installation of those materials.

Figure 1: Components of a Roof

Figure 2: Pipe Flashing and Gooseneck Vent

Figure 3: Wall Flashing

Figure 4: Components of a Shingle Roofing System