Old Siding Under Newer Siding

This usually happens on walls with wooden siding that is not uniform or hand split such as cedar shakes.

Old siding under newer siding.

However removing the asbestos siding first though more expensive is the best alternative in the long run. There are two options for this. If the siding cedar or hardboard is in good shape and the substrate is wood it is foolish to remove the old siding. Value report new vinyl.

But be sure to check your local building codes first to see if it is allowed in your area. Just recently i got some clear confirmation that our policy of tearing off old siding before installing new siding is the right policy. Long think pieces and mounted side by side horizontally across the house. It also eliminates the problem of mold forming when insulation is attached directly to the substrate.

On the right this is that same home and an example on why you never install new siding over existing siding as this is what you will find underneath of it. In a 2015 cost vs. Cut into square or rectangular shapes and is layered vertically to give the impression of many layers of shingles. If there is a problem it can be repaired before the new siding is added.

Alternatively if you leave the asbestos on your home you can safely seal the old siding underneath the new siding and because asbestos is an excellent insulator you will actually be adding to the energy efficiency of your home by leaving it on. Going over the existing siding adds to the r value by creating an air space between the insulation and old siding. Removing asbestos is often cost prohibitive for most people. Applying a layer of sheathing or sheets of foam insulation over the asbestos then covering it with vinyl siding is a common practice.

Remove the siding and install oriented strand board commonly referred to as osb or to use the existing siding that s on the house now as substrate or layer beneath the top surface underneath the hardieplank siding.