【Daily Discussion】Utilities - Civil Engineering - 20210608
Thread Content
What determines the grade of asphalt tar used for laying roofing felt? Answer: The grade of the asphalt rosin used for laying roofing shingles should be determined based on (1) the operating conditions ； (2) Roof slope ； (3) The extreme highest temperature for each year in the local calendar is selected. We welcome active participation in discussions; the system offers generous rewards for answering questions from VIP members! ! !
1) Usage conditions； 2) Roof slope ； 3) Selection of the extreme highest annual temperature according to the local calendar.
The grade of the asphalt mastic used for laying roof oil sheets shall be determined based on (1) operating conditions: (2) roof slope； (3) The extreme highest temperature for each year in the local calendar is selected.
The main technical performance indicators of asphalt rosin are heat resistance, flexibility, and adhesion. The grade of the asphalt-tar pitch used for laying roofing felt should be determined based on the conditions of use, the slope of the roof, and the highest extreme temperatures recorded in the area over the years.
The main technical performance indicators of asphalt mastic are heat resistance, flexibility, and adhesion. The grade of the asphalt rosin used for laying roofing shingles should be selected with reference to the table below, taking into account the operating conditions, roof slope, and the highest extreme temperatures recorded in the area over the years. Roof slope: The grade of the asphalt bitumen used for laying roof shingles should be selected based on the operating conditions, roof slope, and the highest extreme temperatures recorded in the area over the years. Roof slope: Highest extreme temperatures recorded over the years – 1%-3%, 3%-15%, 15-25%; less than 38: S-60, S-65, S-75; 38-41: S-65, S-70, S-80; 41-45: S-70, S-75, S-85.
The main technical performance indicators of asphalt rosin are heat resistance, flexibility, and adhesion. The grade of the asphalt-tar pitch used for laying roofing felt should be determined based on the conditions of use, the slope of the roof, and the highest extreme temperatures recorded in the area over the years.
The main technical performance indicators of asphalt mastic are heat resistance, flexibility, and adhesion. The grade of the asphalt rosin used for laying roofing shingles should be selected with reference to the table below, taking into account the operating conditions, roof slope, and the highest extreme temperatures recorded in the area over the years. Roof slope? ??? The grade of the asphalt pitch used for laying roof shingles should be selected based on the operating conditions, roof slope, and the highest extreme temperatures recorded in the area over the years. Roof slope: Highest extreme temperatures recorded over the years – 1%-3%, 3%-15%, 15-25%; less than 38: S-60, S-65, S-75; 38-41: S-65, S-70, S-80; 41-45: S-70, S-75, S-85.
The grade of the asphalt-tar used for laying roofing felt shall be determined according to (1) operating conditions； (2) Roof slope ； (3) The extreme highest temperature for each year in the local calendar is selected.
It should be selected based on the operating conditions, roof slope, and the highest extreme temperatures recorded in the area over the years