Putting on a new roof is a big – and very expensive – decision that perhaps unsurprisingly, can go both ways. If it is done right, a new roof can dramatically increase your home’s value. However, a roof incorrectly installed will cost your home’s value, and cost you additionally money in the long run.
So how do you avoid this situation? Let’s take a look at the top five roofing mistakes.
No starter shingles. A starter shingle is meant to lay along the eaves and prevent water from seeping into the sheathing under the bottom shingles’ cutouts. Without a starter shingle, plan for a roof leak down the road.
Nails not used correctly. Nails are meant to secure shingles, but not pierce the self-sealing strip. Nails driven too deep can cause leaks, yet not enough nails – four per shingle is recommended, unless the roof is a steep grade, in which case, six is recommended – don’t secure shingles properly. And when shingles aren’t secured properly, or are made to leak, you will be replacing them in the future.
Roofing materials that don’t match the slope. Most homeowners don’t know this, but roofing materials are designed to match the slope of your home. For example, a minimum slope of four units rise per twelve units run is recommended if you are using asphalt, wood, or tile shingles and shakes. So what happens when the slope and materials don’t match? You guessed it – water leaks.
Incorrect shingle exposure. Shingles are meant to overlap, and the amount with which they do – called exposure – is very important in protecting your roof. Not enough overlap and driving rain can be blown underneath them. Too much exposure and shingles can be blown off entirely. So what is the right amount? For standard three-tab shingles, an exposure of five inches is suggested.
Limited ceiling or attic venting. Why vent your attic? Moisture collects inside your home, and when it can’t escape, due to poor venting, it can build up and weaken your roof.
This article is brought to you by ASAP Roofing, a national roofing company that specializes in hail damage, weatherization, and roofing restoration. ASAP has offices in Dallas, Denver, Indianapolis, and Salt Lake City.