Re: Old foundation question??? - Posted by GL(ON)
Posted by GL(ON) on February 04, 2002 at 11:21:21:
Around here there are plenty of pre 1900 houses with fieldstone foundations. They are made of big rocks with lime mortar in between. Every 100 years or so they need pointing, especially if it’s damp. Clean out the old mortar and put in new mortar, small rocks etc. Do a small section at a time. If you do this before the wall starts to bulge and crack, it will be good for another 100 years.You can get the mortar in sacks at the lumber yard.
If the foundation is actually falling down or bulging you are from 10 years to 50 years too late. You should consult a stonemason. You may need to shore up the house and rebuild a section of wall.
I have replaced short sections of damaged wall by digging out the old foundation and the outside soil with a backhoe, building a form and pouring a new section in concrete, throwing in all the old stones I could. This makes a permanent repair and you don’t need to be a mason.