While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding.
Do siding shingles from 1950 have asbestos in them.
In our opinion the term china glaze siding may well have been more widely used or applied to cementious based or even cement asbestos shingle siding than just products sold by u s.
Gypsum as we find the phrase my house was sided with china glaze siding appearing in quite a few more vague descriptions of homes dating from the 1950 s into the 1970 s.
If you suspect that your siding may contain asbestos there is no need for alarm.
The use of asbestos siding shingles was a popular one that was used in the us from the early part of the 20th century until the 1970s.
These shingles are generally 12 by 24 inches and the bottom tends to have a wave like pattern though that is not always the case.
Let the siding dry then prime and paint with the best exterior latex you can find.
Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne.
See photos at asbestos siding in this document.
The siding was made by combining cement with asbestos which is a naturally occurring mineral that is fibrous in nature and fireproof.
If your siding fits either of these descriptions you should consider having it tested.
Testing your siding for asbestos.
Asbestos shingles are relatively strong but brittle.
Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos.
Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.
The siding may also contain asbestos if it is old with a wood grain texture to resemble cedar.
If you don t know the age of the shingles inspect them for wear.