Shingle Roof In Need Of Replacement In Burnsville NC

These shingles are beginning to slide down the roof, marked in pink. I looked into it a bit better, discovering the reason why.

The reason was that the shingles have been high nailed, meaning when the shingles were nailed down, the person nailing put the nail in way too high and missed the nail line. I checked this area along with many others and found high nailed shingles all over the roof. A shingle has a nail line, and that nail line of the shingles is thick with 2 layers. Above that line, the shingle is thinner with one layer. Most nails will shoot through or almost shoot through the shingle. Here are some pictures I took

there are many other pictures I took. Too many to list here. 

These cracked ridge cap shingles developed a hole in it. This was likely the cause of the leak in the middle dormer.

Exposed nails can cause the nails to rust away, leaving a hole for water to penetrate the roof. These need to be re-caulked

Moss is terrible for your roof. Moss has a root system that is thin as hair. It grows in the dark (in-between shingles), letting water wick under the shingles causing nails to rust away.

The shingle union is way too close to the corner of the dormer. This can cause leaking at the corner.

There was actually moss all over this roof but more so on the rear slope as there is less sunlight there  like I mentioned about it on the front, the moss wicks moisture under the shingles causing rusted nails which leads to leaks.

Once again these pipe boots are ancient and not nailed down again.

These pipe boots are completely deteriorated, and dry rotted. How there is not water just pouring in the house is beyond me. On top of that they are not nailed down at all

As you can see i put a chalk line next to each union. A union is where two shingles butt up together. These shingles are in rows running vertically up and down the roof.

This next picture will show you how the shingles are supposed to be installed on a roof. With a 6 inch stagger. This allows the while roof to tie together as one solid congruent unit. This is a picture of roof we recently did. As you can see these are installed on a 6 in stair stepping stagger.