First house I owned was built in the early 20th century. It must have had at least 4 layers of shingles; I don't think it had ever had a tear-off. The roof deck was boards, not plywood, installed with about 1-inch gaps between them.
The house had been re-sided at one point with Aluminum siding. It was a bungalow style house with a covered front porch. After we had the roof torn off and replaced, there was about a 1-inch gap between the bottom of the siding and the top of the porch roof, that was the thickness of shingles removed. The dumpster they ordered for the job turned out to be too small by about half, because there were so many layers of old roofing. Current code I think limits residential roof to 2 layers, one of the reasons is so that firefighters can cut through the roof to vent smoke if needed. Allan On Fri, Aug 6, 2021, at 11:37 AM, Jim Cathey via Mercedes wrote: > > Do they not just put another layer of shingles on anymore? > > I was told, from family lore, that you could put on a second layer, but not a > third. > When we finally did a full tear-off of the beach cabin roof, there were five > layers > in some spots. > > -- Jim > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com