1924 Drawings - Mastic Floor Finish
1924 Drawings - Mastic Floor Finish
(OP)
I am working on renovations to a building constructed in two phases. The building was constructed as an automobile manufacturing facility. Phase 1 was a four story building constructed in about 1916. Phase 2 was a 2 story addition constructed in about 1925. We were fortunate that the owner had copies of the original construction documents for both phases and some construction photos for phase 1. The building is being renovated into a hotel. The drawings for the 2 story addition specifies a 1 1/2" thick mastic floor finish in an area where a penthouse is being renovated into a guest suite. Does anyone know what a mastic floor finish is? I know that mastic is an adhesive but what did that mean in the mid-1920s? Likely the same type of thing but at 1 1/2" thickness, I am wondering if it might be a gypcrete or regular concrete topping with a mastic sealer. Looking through some old texts and a www search has resulted no additional useful information. Curious if anyone on here has encountered this material previously.






RE: 1924 Drawings - Mastic Floor Finish
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RE: 1924 Drawings - Mastic Floor Finish
RE: 1924 Drawings - Mastic Floor Finish
Michael.
"Science adjusts its views based on what's observed. Faith is the denial of observation so that belief can be preserved." ~ Tim Minchin
RE: 1924 Drawings - Mastic Floor Finish
I second Paddington’s thoughts on “mastic floor finish,” also called ‘mastic asphalt.’ 1 or 1.5" thicknesses were common. It was an asphalt type floor topping, not really a structural component; smooth, hard, no seams, water tight, good wearing surface.
RE: 1924 Drawings - Mastic Floor Finish
RE: 1924 Drawings - Mastic Floor Finish
RE: 1924 Drawings - Mastic Floor Finish
RE: 1924 Drawings - Mastic Floor Finish
RE: 1924 Drawings - Mastic Floor Finish