However shingle color difference due to age and weathering does not make the shingles unavailable.
How mamy shingles off roof before it has to be replaced.
You may need to contact a professional roofing contractor.
If the shingles are backed with adhesive strip remove the covering and push them into place then nail them to secure them.
There are missing shingles missing shingles will need to be replaced right away.
Moss holds moisture against the roof surface and overtime in freezing climates can cause damage to the granules on the top of the shingles.
If you have a 40 year old roof there could be a problem even if it looks good from the ground how much time you ve got left.
There are many factors when an insurance adjuster inspects your roof.
Follow the directions of the shingles that you purchase or use the other shingles on the roof as a guide.
Some shingles become discontinued and repairs cannot be made due to the roof shingles being unavailable.
Five to 10 years depending on your roof s condition.
Moss can be brushed off but it won t prevent it from growing again.
The tear off gets a lot more complicated if you have something other than asphalt up there.
Lastly the shingles have to be currently available on the market.
Take care not to damage the shingle surface.
If you can see original wood shingles on the underside of your roof when you re up in the attic you ll need not only to tear everything off but also to install new plywood decking all of which likely adds 5 000 or more to your costs.