ᐅ Contaminants in a 1950s Single-Family Detached House with Solid Construction

Hello dear forum,
we are currently in the process of buying a single-family house built in 1956. Unfortunately, back then, many less healthy materials were often used in construction. What should one look out for, and what can be left as is? Asbestos is clear (though I rather doubt it in this case) and I’ve heard about parquet adhesive. Who inspects these things?
Thanks in advance 🙂!

Adhesives contained solvents well into the 1980s. They were hazardous during application but harmless once cured, as were nitrocellulose varnishes. Wood preservatives like Xylamon, however, pose a more lasting concern. The popular Stragula flooring, on the other hand, are harmless early forms of vinyl. K.

HaLonse schrieb:
we are currently in the process of buying a single-family house built in 1956. Unfortunately, back then it was common to use many less healthy materials.

Not so bad — twenty years later, people considered it forward-thinking to use “modern” materials quite naively. The late 1970s to mid-1980s was actually a peak period for health-risk materials, whereas the post-war economic boom era was much more cautious. “Asbestos” has become almost a buzzword representing all the fears of buyers of older homes. The wood preservatives used in that later period are much more common and concerning (they emit gases, unlike asbestos, which is harmless as long as it is not disturbed or processed).

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Thank you, that already sounds good 🙂! Yes, I knew that asbestos itself does not necessarily have to be a problem. But it might need to be considered during renovations. It's good to know that the parquet flooring can remain as well. An acquaintance mentioned that the adhesive might release harmful substances over time. Regarding wood preservatives, what is the best way to handle them? Who tests the wood, and what would need to be done if it is contaminated?

HaLonse schrieb:
A friend mentioned that the adhesive permanently releases harmful substances.

She is correct. The parquet adhesive commonly used in the 1950s and 1960s contains polycyclic aromatic hydrocarbons. These can be mutagenic and carcinogenic, among other health risks. When the parquet becomes cracked and individual planks start to detach from the subfloor, it becomes dangerous. Walking on it can grind the solid adhesive into dust, which then gradually penetrates through gaps and cracks.

HaLonse schrieb:
Regarding wood preservatives, how should one handle them? Who tests the wood and what steps are necessary if contamination is found?

Building biologists specialize in these issues. They can determine the proper testing procedures and advise on the necessary measures to take if contamination is present.

Good to know, thank you! I will look for someone who can take a look at it with us as soon as possible.