Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.
Do siding shingles from 1950 have asbestos in them.
And see asbestos cement siding for details about cement asbestos building siding its repair removal demolition or cover over.
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.
Testing your siding for asbestos.
If you suspect that your siding may contain asbestos there is no need for alarm.
See photos at asbestos siding in this document.
If you don t know the age of the shingles inspect them for wear.
Asbestos ranks high on the list of dangerous substances because of its toxic and carcinogenic properties when airborne.
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.
Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos.
Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s.
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.
Let the siding dry then prime and paint with the best exterior latex you can find.
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.
While older homes will likely contain asbestos in roofing insulation and tiles it can also be present in exterior siding.
Asbestos shingles are relatively strong but brittle.