From: AndrewJ 
Newsgroups: alt.building.construction alt.home.repair misc.consumers.house
Subject: Re: Impact of not removing existing shingles?
Date: Sat, 19 Jun 2004 18:46:20 -0400


>
>Thanks in advance,  Jeff R.
>
>--- Other Info ---
> We are in the Midwest.
> Believe the existing shingles are asphalt organic felt (does this matter?

No.

> Some of the existing shingles have started to curl slightly.

Should be ok if you choose a dimensional(cedar look) shingle.

Guys putting up cheap shingles must do a tear off. Poor quality
shingles look awful going over anything but sheathing. We put 30 year
shingles over decent roofs all the time. It's called a "roof over" and
exact directions are on every bundle sold. 99% of the country allows
upto three layers of shingles with some regions allowing four.

The second part of the scam is that the lowest bidder saying a tear
off is needed, always "happens" to find a lot of damage. Possibly
charging $100 or more a sheet to replace the sheathing. Only when
everything is said and done do you realize they were actually the
highest bidder.