Replacing a Torn Shingle

Unless you have installed some high quality shingles, you may find that the wind will blow and possibly tear off the edge shingles.  This is often caused by the shingles not properly sealing.  If you live in an area that regularly experiences high winds, you might want to try architectural shingles which can handle winds up to 110 MPH.

BAAAD shingle
Items needed:
Roof cement
Utility knife
Roofing nails
Hammer
Safety Suggestions and Tips
Be careful when working on the roof.  Use safety equipment when necessary. 
Level of difficulty


Time Required:
 1 hour

Steps

Asses damage
Assess damage

Step 1:

The first step is to assess the damage to the shingle.  You should do this in warm weather to avoid shingle breakage.

Remove damaged shingle
Remove damaged shingle

Step 2:

You will need to remove the broken section by pulling the nail.  Lift the intact tabs, being careful not to damage any intact shingles.  If you have serious problems and need to be aggressive, there are special tools to remove the entire roof section.

Nail shingle down
Nail shingle down

Step 3:

With the old shingle fragments removed, measure for a the replacement shingle.  You can cut the shingle to size by scoring it with a utility knife.  Using a roofing nail, fix the shingles by nailing above the tab cut (typically there are 3 nails per full shingle).  The nail should be covered when you lay the flap down again.  Avoid nailing within 2" of the edge of the shingle.

Spread out sealant
Spread sealant around

Step 4:

You will need to seal both on top and below of the replacement shingle.  I suggest using a caulking gun and tube of roof cement.  Be sure to cover the entire area which will be covered by the tab.

Check for loose shingles
Check for loose shingles

Step 5:

Before you leave, check for other loose shingles by lifting the edges and see if the self-sealing contact is not bonded.

Apply sealer under edge
Apply sealer under edge

Step 6:

If need be, simply apply a liberal amount of roof compound about 1" from the edge of the tab. One area that is often overlooked is the bottom-most row.  Be sure to adhere the shingles to the metal roof guard