Abstract
This report is the third part of a three-phase program to study the relationship between temperature-viscosity and interply weights achieved during mopping and mechanical application of hot coal tar roofing membranes. The test procedures used during the first two phases involved the ply-on-ply application of the tarred felts. This method was based upon the procedures described in NBS BSS 92. Phase III was conducted to develop a correlation between the ply-on-ply technique and the shingle method of built up roofing application. Four test roof sections were constructed using a mechanical spreader and four test roof sections were mopped. A total of 43 coupons, each measuring 16"x9" (1 sq. ft.) were taken. Eight additional coupons were forwared to NRCA. The examination of these coupons included calculating interply quantities of coal tar materials.
This report is the third part of a three-phase program to study the relationship between temperature-viscosity and interply weights achieved during mopping and mechanical application of hot coal tar roofing membranes. The test procedures used during the first two phases involved the ply-on-ply application of the tarred felts. This method was based upon the procedures described in NBS BSS 92. Phase III was conducted to develop a correlation between the ply-on-ply technique and the shingle method of built up roofing application. Four test roof sections were constructed using a mechanical spreader and four test roof sections were mopped. A total of 43 coupons, each measuring 16"x9" (1 sq. ft.) were taken. Eight additional coupons were forwared to NRCA. The examination of these coupons included calculating interply quantities of coal tar materials.
Date
10/1986
10/1986
Author(s)
Koppers & NRCA Task Group
Koppers & NRCA Task Group
Page(s)
33-36
33-36
Keyword(s)
coal tar; EVT; shingle BUR
coal tar; EVT; shingle BUR