Do you have any of these problems?

Look outdoors for these problem signs

1.  Have you had any hail or severe winds?  Yes      No

2.  Are your shingles:     Blistered     Curled     Split

3.  Do you have loose or missing shingles?     Yes     No

4.  Do you have loose nails?     Yes     No

5.  Do you have exposed nails (that could cause leaks)?     Yes      No

6.  Do you have dark patches on asphalt shingles?     Yes     No

7.  Do you have a large amount of granules in the gutter?     Yes      No

8.  Do you have sagging at the ridges or center of the roof?     Yes     No

9.  Do you have broken or loose shingles at the ridge and/or hip lines?     Yes     No

10.  Do you have rusty or corroded flashing?     Yes      No

11.  Do you have overflowing gutters or water pooling near foundation of house?     Yes     No

Look indoors for these problem signs

1.  Do you have sagging decking between rafters?     Yes     No

2.  Can outside light be seen through the roof?     Yes     No

3.  Are there signs of water damage or leaks (water stains or sagging ceiling)?     Yes     No

4.  Are there signs of leaking in attic (dark spots on wood)?     Yes     No

WHAT CAUSES THESE PROBLEMS

ALGAE GROWTH

Algae growth causes a dark discoloration on roofs. The algae is usually brown to black in color which results in a streaked, dirty looking rooftop. It can be mistaken for soot, dirt or tree droppings, which typically produce only localized discoloration. It's caused by the growth of air-borne algae which deposits on your roof. The good news is that algae growth does not affect the service life of your roofing material. It occurs most often in warm, humid climates such as the Southeast (where algae-resistant shingles are available).

BLISTERING

Blistering is caused by moisture in the shingle.

BUCKLING

Buckling is caused by improperly applied felt, wrinkled underlayment, roof deck movement, spacers not used in between roof deck boards, poor roof ventilation, new shingles applied over old, and rough shingles.
 

CEILING SPOTS

Ceiling spots are caused by leaks in the roof.

CURLING

Curling is caused by high nails, lack of back coating, under-saturation of asphalt felt in organic shingles, lack of ventilation, and improper number of fasteners.

DAMAGED FLASHING

Damaged Flashing is caused by improper installation on a new roof, drying and cracking on an old roof, dented by improper nailing, and settling of the structure.

MISSING GRANULES

Granule loss does not affect the service life of the shingles unless granules can be seen missing on the surface of the shingles, thus exposing the asphalt or Fiberglas® mat.

MISSING SHINGLES

Missing Shingles are usually caused by improper fastening and/or exposure to high winds.

ROTTING

Rotting is caused by absorption of moisture by the mat at the core of the shingle. This is a common problem with organic-based shingles.