There are several different types of roofing material in North West Indiana. However, the material used usually dictates the length of time a roof will deflect rain water.
Types of Roofs
- Asphalt shingle (15 to 20 years)
- Asphalt, Multi-thickness (20-30)
- Wood shake (10-40 years)
- Clay or concrete tile (20+ years)
- Slate (30 to 100 years)
- Metal or steel (15 to 40 years)
- Polyurethane (5-10 years)
Asphalt shingles are the most commonly used roofing material in construction, mostly because they are inexpensive and can last 15-30 years, depending on the grade. Some of the more expensive asphalt products are designed to last up to 30 years. The shingle chosen by most builders will start to show signs of aging after 10-15 years. For example, the corners will start curling, the shingle will start cracking, alligatoring, blistering, ponding, cupping and the asphalt granules can start to deteriorate and fall off. When these signs become obvious to you then it is time to think about taking action.
Keeping a home dry is one of the most important things a homeowner should be concerned with. Roof top leaks can cause mold to grow in attic spaces, rot plywood sheathing, cause structural damage, and so much more. If you are not able to climb up onto the roof to investigate then use binoculars from ground level.
Roof coverings should be visually inspected in the Spring and Fall for any visible missing shingles, damaged coverings or other defects. In addition to monitoring the condition of a roof covering it is a good idea to keep in mind the possibility of a roof leak caused by poorly installed roof vents, plumbing vents, flashings, and skylights. Climbing up into the attic to investigate the plywood sheathing for dryness, staining, or rot, is recommended.
There are many issues to take into consideration when inspecting a roof. For example, the roof pitch, age, number of layers, previous roof repairs, previous roof certifications, and age. Ridges, caps, drip edges, gutters and downspouts, and flashings are also integral factors in determining if the roof is ready for repair or replacement. If you are unsure or unable to determine if a roof top and all of its parts are in need of attention please call a home inspector for a roof and attic inspection.