A bad roofing job can pose several risks to home owners and make the home ownership experience very unpleasant.  Some of these risks are:

1. Water damage: A poorly installed roof can allow water to seep through, leading to water damage inside your home. This can result in mold growth, structural damage, and the need for costly repairs. Here are a few signs that you have a leaky roof:

a) Water stains: Look for water stains on the ceiling or walls of your home, especially in areas where there is no plumbing. Water stains may be brownish or yellowish in color and may have a circular shape.

b) Peeling paint or wallpaper: Water damage can cause paint or wallpaper to peel or bubble. This is because the water can weaken the adhesives holding them in place.

c) Mold or mildew: Moisture from a roof leak can create a breeding ground for mold or mildew. Look for any signs of mold or mildew growth on your walls, ceilings, or floors.

d) Dripping water: If you notice any water dripping from your ceiling or walls, it’s a clear sign that there is a leak somewhere in your roof.

e) Damaged shingles: Check your roof for any damaged or missing shingles, as these can allow water to seep through. Also, look for any cracks or holes in your roof.

2. Reduced energy efficiency: If your roof is not installed properly, it can lead to air leaks, which can reduce your home’s energy efficiency. This can result in higher energy bills and an uncomfortable living environment.

3. Safety hazards: A poorly installed roof can also pose safety hazards. For instance, a roof that is not secured properly can collapse, posing a danger to anyone in or around your home.

4. Voided warranties: Most roofing manufacturers have warranties that cover their products for a certain period of time. However, if the roof is installed improperly, the warranty may be voided, leaving you with no protection in case something goes wrong.

5. Decreased property value: A poorly installed roof can decrease the value of your property. This is because potential buyers may see it as a red flag and factor in the cost of repairing or replacing the roof when making an offer on your home.

It’s important to hire a reputable roofing contractor with a good track record to minimize the risks associated with a bad roofing job.