On 2015 09 08 by mod some granule wash down is normal on new roofs but what you describe is not.
Is it normal for shingles to just fall off roof.
New asphalt roof shingles.
This may solve the problem temporarily but there is a chance of the same thing being repeated in the future if the issue extends beyond a few loose shingles to the entire roof.
It s normal for shingles to lose the colored ceramic granules as is happening to you and i.
In other words when shingles are new excess granules from the manufacturing process fall off when somebody walks on roof and when it rains.
Before you get to work replacing your shingles you should determine what caused them to fall off in the first place.
In many cases unusually strong wind is to blame but installation issues can make shingles more vulnerable to weather patterns or even cause them to fall off when wind is minimal.
Later in life as the shingles become more brittle granules continue to fall off exposing the shingles fiber underlayment.
How long will it continue to do so.
Where one shingle tab blew off your roof you have a 1 in 3 chance that the missing shingle was sitting directly above an open seam between the shingles below.
Just had a new roof put on and it has been shedding granules.
If the asphalt is poor quality if there s too much powdered stone filler in the shingles or the manufacturing process is not great the granules will eventually come off the shingles much faster and in greater amounts than is normal.
That s because this type of roof shingles standard 3 tab asphalt shingles are installed side by side with the next upper row of shingles covering the side seams.
When roof shingles get blown off during storms or strong winds homeowners typically call for professional roofers to repair them.
Have the gutters cleaned out and check their slope.
These other granules are not attached to the shingle so they are likely to fall off slowly from manufacturing to the packaging to the installation on your roof and even after.