Pry off old roof shingles with pitch fork.
Reshingle vs new roof.
However when done right it also yields the biggest return on your investment.
Whether you re going for a fiber cement composite shingle installation or a composite shingle asphalt roof the total expenditure can vary.
You can t examine the decking to determine if there is any damage that needs repaired.
In general it is not a good roofing practice to overlay a traditional asphalt shingle roof versus a complete tear off and replacement with a new roof for the very reason you stated.
Re roofers have tricks to lay new roof shingles over old so that the same step ups between courses are maintained but if any old shingles are cupped curled or otherwise misshapen those defects will telegraph through to the new layer.
In this video this old house general contractor tom silva explains how to reshingle a roof steps.
Since it s being put on top of another less than perfect roof it s likely that it may not look as good as a brand new roof would.
A bundle or two of new shingles stored flat in the garage comes in handy if your new roof gets damaged later.
What you need to know dave law last updated january 24 2020 here is a scenario we hear about all the time.
Although it sounds like a good idea we can assure you the cons heavily outweigh the pros.
Pro tip for low sloped roofs photo by carl tremblay while asphalt shingle is a good roofing material it s not the best choice in all situations.
Roof tear off vs.
2nd layer of shingles.
Cover roof deck with 30 pound felt underlayment.
Reroofing is the process of layering one set of new shingles over a set of existing shingles.
By placing shingles on top of a damaged roof you ll affect the way the roof looks.
In fact reports show that a new roof yields more than 80 of its original cost upon resale.
If you want to reshingle your asphalt roof with new shingles it ll cost an average of about 7200 for a 2000 square foot house excluding old roof removal.
Staple felt every 6 to 8 inches.
This contractor told me i don t need to tear off my existing shingles when we re do our roof.
Nail down loose roof sheathing to rafters.
Your contractor can then use them for exact match patch repairs.
It can only be done once so if you already have two layers of roofing in place reroofing is not an option for you.
More difficult to check deck when you tear off the old roof you get a look at what s underneath.
The roof is one of the biggest investments you will make in your home.
Because there is no tear off reroofing can go much faster and be much less expensive than a complete roof replacement.
When contemplating a new roof many people hope to simply do a shingle over and avoid the extra cost and mess of tearing off the existing roof and starting from scratch.