Exterior insulating sheathing

Details Exterior insulating sheathing Exterior insulating sheathing

1987-04-09

1988-11-22

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

4283117, 4283144, 4283148, 4283171, 428490, B32B 326, B32B 702/7/12

Patent

active

047865474

ABSTRACT:
An exterior insulating sheathing which comprises a foam polystyrene ply and a second ply glued to said polystyrene ply throughout. The second ply is preferably a fiberboard but may also be a waferboard. The sheathing is nailable, has a racking load of about 1900 to 3700 lbs, and has at least he exposed side of the second ply water resistant. This sheathing has a minimum tensile strength of 65.+-.14 kPa, a linear expansion at 97% RH and 23.degree. C., of less than 0.40%.+-.0.02, a water vapor transmission of at least 96.sup.ng.Pa.s.m.sup.2, and a modulus of rupture of 0.5 to 17.2 megaPascal.

REFERENCES:
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patent: 4042746 (1977-08-01), Hofer
patent: 4073674 (1978-02-01), Hortel
patent: 4083743 (1978-04-01), Degens
patent: 4259386 (1981-03-01), Wagstaffe
patent: 4262052 (1981-04-01), Kannan et al.
patent: 4479912 (1984-10-01), Bullock
patent: 4503106 (1985-03-01), Cogliano
patent: 4564554 (1986-01-01), Mikuski
patent: 4587164 (1986-05-01), Freeman
patent: 4651494 (1987-03-01), Van Wagoner

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