Title:
ROOFING BASE SHEET AND MOISTURE PERMEABILITY ROOFBOARD USED THEREFOR
Document Type and Number:
Japanese Patent JP2010275842
Kind Code:
A
Abstract:
To provide a roofing base sheet resistant to corrosion and dew condensation, and a moisture permeability roofboard used for the same.
The roofing base sheet 30 includes both the moisture permeability roofboard 10 of 15 N/mm2 or above in a bending strength and 5 m2*h*mmHg/g or less in a vapor resistance, and a moisture permeable waterproof sheet 20 arranged on this moisture permeability roofboard 10, and is used. The moisture permeable waterproof sheet 20 includes a nonwoven fabric layer of 0.01 g/cm3 or above in a bulk density, a porous polyolefin film layer laminated on the nonwoven fabric layer, and a resin joint for bonding between the nonwoven fabric layer and the porous polyolefin film layer. This resin joint is decentrally-formed.
Inventors:
NAKAE KAZUHIRO
Application Number:
JP2009132348A
Publication Date:
December 09, 2010
Filing Date:
June 01, 2009
Export Citation:
Assignee:
FUKUVI CHEM IND CO
International Classes:
E04D12/00
Domestic Patent References:
| JP2004052473A | 2004-02-19 | |||
| JPH07259270A | 1995-10-09 | |||
| JPH07300953A | 1995-11-14 | |||
| JP2001140414A | 2001-05-22 | |||
| JPH05248043A | 1993-09-24 | |||
| JP2000080767A | 2000-03-21 | |||
| JP2010180590A | 2010-08-19 | |||
| JP2004314593A | 2004-11-11 | |||
| JPH1150609A | 1999-02-23 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama