You can t know for sure that there aren t any soft spots or haven t been any leaks.
Tearing off old roof.
Cover foliage near the house with reinforced plastic tarps to catch debris for easy cleanup.
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You must tear off existing roofing under these conditions.
Standing at the peak use a garden fork or a specially notched roofing tear off shovel to tear away the ridge caps and the top courses of shingles.
Some roofers prefer forks because they don t get caught on nails making it easier and faster to remove the shingles.
Short term you can save money by installing a new roof over an old one if local codes allow.
If you don t tear off the old layer you can t examine the decking.
Complete roof tear off in 7 steps step 1.
By laying down a new roof over the existing one you.
Why a roof tear off is a good idea.
Save time by skipping the step of having a team remove the old roof before building the new one.
If you re able to position it directly under one of the lower.
Remember this is your one chance to make absolutely sure there are no problems with decking and have been no holes made in your soffits or fascia.
However new roofing applied over old rarely lasts as long as roofing installed on a stripped and properly prepared substrate.
Save money especially when the old insulation can stay in place and be used again.