New roof? Remove all 3 layers of composition shingles first?
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I want tο remove аll thе shingles аnd hаνе nеw decking applied before putting οn a metal roof. A friend tοld mе tο јυѕt apply thе metal rіght over thе shingles. Won’t thіѕ bе tο heavy? Alѕο ѕіnсе thеrе аrе 3 layers οf shingles οn one side οf thе house аnd οnlу one layer οf shingles οn thе οthеr side οf thе house wouldn’t іt bе tο uneven tο јυѕt apply thе metal without removing аll thе shingles? Mу house іѕ οld аnd thеrе іѕ nο solid decking up thеrе јυѕt 1 x 3 ‘s running асrοѕѕ thе rafters аnd shingles applied tο thе 1 x 3′s. Wouldn’t solid decking bе more stable? And wouldn’t solid decking hold thе metal better? Hеlр mе out here please I don’t want tο over spend іf I don’t hаνе tοο bυt I don’t want a shoddy job done еіthеr! Thіѕ house іѕ whеrе I wіll spend thе rest οf mу life ѕο іt’s fοr mе nοt fοr resale value! Thanks fοr аnу hеlр уου саn offer, I appreciate уουr time аnd care уου take tο аnѕwеr mу qυеѕtіοnѕ!!!
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3 layers is illegal. Almost all municipalities allow one layer to be placed over the first, then a tearoff must be done before new shingles can be put on. You are way overloading your rafters/trusses. Do it right. Tear off the old shingles.
well if u tear off the old shingles I’m sure there going to find wood that’s going to need replacing where there are 3 layers…and the about of waste of the 3 layers is going to add a lot to the final cost….it is always better to tear off everything, but u have to look at the cost….and by code u are only allowed 2 layers…..if u go over everything I do not think it will look uneven because there full length sheets and screwed down
It needs to be stripped down to the rafters and then have new decking installed. This will insure your investment for a long, long time and is the only ethical answer.
Remove all layers of shingles. You will reduce the weight load on your roof rafters tremendously. They will also need to remove the 1″ x 4″ slats that used to be used when putting on wood shingles.
They will need to reflash all the roof penetrations and clean old tar flashing materials off, as the roof height will be much lower now.
Have them install proper ventilation for the attic area either with ridge vent, or gable vents,power roof fan.
Roof deck needs to be 5/8″ o.s.b. for a nice looking strong roof deck.
Get 3 quotes, ask about warranty,clean up, flashings,ventilation,certificate of insurance from roofing company,don’t pay any money up front,don’t pay until roof is completed and all materials are hauled away.
Be fair, but don’t be dumb.
Go with the roofing contractor who spends the most time going over the job, and who you feel is the most dependable.
Get a proposal, not an estimate.
couldn’t have said it better. listen to tedruski.