Meeting the insulation requirements of the building envelope with polyurethane and polyisocyanurate foam

被引：30

作者：

Bogdan, M ^{[1
]}

Hoerter, J ^{[1
]}

Moore, FO ^{[1
]}

机构：

[1] Honeywell Int Inc, Buffalo, NY 14210 USA

来源：

JOURNAL OF CELLULAR PLASTICS | 2005年 / 41卷 / 01期

关键词：

polyurethane; polyisocyanurate; insulation foam; ASTM C 1303; CAN/ULC S-770; PIMA technical bulletin 101; HCFC-141b; HFC-245fa; Enovate (R) 3000; ASTM C 1289; k-factor; R-value; LTTR;

D O I：

10.1177/0021955X05049869

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The use of insulating products in the building envelope is defined by many criteria. The specified R-value or k-factor for the structure is an essential component of most specifications. The industry has traditionally reported the R-value measured at a mean temperature of 75degreesF for use to calculate insulation requirements for the building envelope. With improvements in instrumentation, it is now possible to specify insulation based upon the actual use temperatures for a given building or region. This paper compares the performance of insulating products over a variety of mean temperature ranges including a discussion of measurement methods.

引用

页码：41 / 56

页数：16