If a shingle is missing your roof becomes vulnerable to the elements especially wind and rain.
13 yr old roof lost 6 shingles in wind.
Even 45 year asphalt shingle roofs start having problems after 20 years.
Wind will be able to get under surrounding shingles and cause further damage while rain may be able to leak into the area where the shingle is missing.
Every 2 years after 15 years.
There is no requirement of law that says new shingles have to match the color of old shingles or all the old shingles have to be replaced.
When a major storm is coming document the roof s condition before and after.
When exposed to strong direct sunlight and rapid temperature changes thermal shocks commonly associated with southern states and dessert climate zones think texas arizona oklahoma nevada and parts of california dessert asphalt shingles can develop.
Be sure to align with the shingles of either side.
There are missing shingles missing shingles will need to be replaced right away.
For example the shingles at the edges of a windward roof slope are exposed to higher uplift pressures than the shingles near the center of the roof slope.
Normal defective product storm damage foot traffic etc.
Every 2 3 years after they are 10 years old.
Wood shingles and shakes.
This extra uplift pressure is generated at the edges by the additional pressures from the secondary movement of the wind as it encounters the wall and then rushes up over the roof figure 1.
Clay and concrete tiles.
In lb s old shingle shingle photos taken on the roof itself most of the open pits or craters on shingles where mineral granules have been lost appear to be in relatively flat areas shingles.
Photos and text guide diagnosis of asphalt roof failures causes effects of loss of protective mineral granules from roof shingles description of different causes of roof shingle granule loss.
Every 2 3 years after they are 10 years old.
If part of a shingle is missing you ll have to replace the whole thing.
First see if you have any leftover shingles from the last time the roof was worked on with any luck the builder or the roofer who handled the job left some behind.
Metal roofs and composite shingles.
Causes effects of loss of protective mineral granules from roof shingles asphalt roof shingle defects.
This is not the insurance company s responsibility.
Mineral granules that have been lost to expose shingle substrate in the center of raised blisters will in at least some instances leave a crater around.
And we are not in that windy of area no hurricanes or tornadoes.
Since no one will give the insured the same purchase price for a house that has a mis matched roof.
Slide the new shingle up into place.
In some cases the roofing could have been inappropriately installed like being nailed too close to the top of the shingles causing the nails to pop up and raise the shingles.
The maximum wind uplift a 3 tab shingle roof can withstand is 60 mph to 70 mph.
