1. When Was The Last Time Your Roof Was Repaired Or Installed?
Does your house still have its original roof, or have repairs been made to it over the past couple of years? Depending on the kind of shingles your roof has and how old the roof is, you might need to watch for leaks or get a replacement scheduled. When it is time to replace your roof will depend on the type of shingles and existing structure. Wood shake roofs are able to last for up to 30 years while asphalt shingles can help up for around 20 years.
2. How The Roof On Your House Is Ventilated
It is critical for a healthy roof system to have proper ventilation. If your roof is lacking airflow it might be susceptible to mildew and mold. Along with your roof’s main vent, there are a couple of other factors that can affect the way that air moves through the attic to your roof.
Do a quick review of your attic and check on the following:
– 1 inch at least between the roof sheathing and insulation.
– Enough vented, open spaces enable air to freely pass through. A roof should typically have a 1-foot area of venta space for each 150 square foot of attic space. You can calculate the number of vents that your roof needs to have here.
– A vapor barrier next to the ceiling and under the insulation to prevent moisture from getting into the attic.
– A layer of gap-free insulation on your attic floor to keep your house protected from heat loss and gain.
3. What Kind Of Shingles Does Your Roof Have
There are various materials that may be used as shingles, ranging from asphalt to slate to wood. Each of them has a different warranty that comes with it and the durability will depend on your local area. Remember that harsh weather conditions like extreme cold or high winds may crack clay shingles.
4. Your Roof’s Fire Rating
A fire rating system classifies the fire resistances of various roofing materials. There are A, B and C Classes. Class A materials have the highest fire resistance that originates from outside the structure. They include metal roofing, fiberglass asphalt composition shingles, and clay tiles.
5. Slope or Pitch of Your Roof
Pitch determines what kind of shingles are suited best for your roof.
Pitch Grade of Slope Recommended Types of Shingles
High 5 to 12 inches Slate or wood shake shingles
Medium 4 to 12 inches Composite and asphalt shingles
Low 1 to 3 inches Steel or another material that makes a watertight seal.