How To Recognize Asbestos Siding

The presence of old dirty demotion materials may suggest that old asbestos cement shingles have been removed from the.

How to recognize asbestos siding. How to identify asbestos siding determine the age of your home by looking at the property deed or any other records about its construction. Recognizing siding with asbestos asbestos siding was manufactured to resemble many different materials so it doesn t always look the same. While an expert lab test using polarized light microscopy may be needed to identify the specific type of asbestos fiber or to identify the presence of asbestos in air or dust samples many asbestos containing building products not only are obvious and easy to recognize but since there were not other look alike products that were not asbestos a visual identification of this material can be virtually a certainty in many cases. Asbestos wasn t always added to cement siding and there s no way to tell from a visual test or physical inspection on site if siding really does have asbestos in it.

Identifying possible asbestos materials 1. Look specifically for any printed. Look specifically for any printed information that identifies the siding manufacturer or date of. The only way to be sure if your siding has asbestos in it is to collect a sample and send it to an accredited testing lab.

Check the manufacturer and product name on the insulation label and do a web search to find out if. If you suspect that your siding may contain asbestos there is no need for alarm. Look for a siding that is made to look like roof shingles. Contractors and inspectors or anyone identifying asbestos siding can t tell from just an on site inspection whether or not your siding really has asbestos in it.

This however can change if the asbestos siding begins to dry out or get damaged. On the outside of buildings asbestos sheets were often joined together with aluminum runners. The presence of multiple layers of exterior siding can be spotted by noticing that the wall cladding extends out past. Are there several layers of siding wall cladding extending out past the original door trim or window trim could be an indication of several layers of siding the one behind is likely containing asbestos since it was such a popular material previously.

The nails used to secure the shingles probably won t help. It is generally very brittle and the back may be black and have the appearance of tar paper. Asbestos siding is made of the same product but exists in a hardened state and does not pose the same type of threat as asbestos insulation. Look for asbestos cement shingles a mixture of asbestos fibers and cement or asbestos cement corrugated roofing which is thicker and more often found on old sheds barns and low income housing.