Wallboards

Details Wallboards Wallboards

1975-10-31

1977-07-05

Bell, J. Karl

Static structures (e.g., buildings)

Including design feature accommodating dimensional variation...

52127, 52459, E04B 168, E04B 194

Patent

active

040330842

ABSTRACT:
A wallboard composed of a low-strength core of gypsum or the like can be successfully faced with a decorative plastic such as melamine if plastic is used on both sides, and a sheet of steel foil is located on both sides of the core between the core and the facing material. The use of steel foil greatly reduces the likelihood that low humidity will cause the gypsum core to split as a result of shrinkage of the facing material, and the provision of plastic on both sides of the core balances the wallboard eliminating any tendency to bow.

REFERENCES:
patent: 2745779 (1956-05-01), Ritter et al.
patent: 3197929 (1965-08-01), Halbostad

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