Description:

A heavy-weight asphalt roofing felt made of a specially formulated organic sheet which has been fully saturated with waterproofing asphalt.

 

Feathers and benefits

•  heavy organic mat
•  high asphalt saturation 
•  heavier roll weight
•  tightly wood roll lengths
•  excellent standard packaging
•  highly visible alignment lines 
•  high tear strength
•  easier roll-out-less sticking

Uses:

A roofing felt used as an underlay beneath asphalt shingles, wood shakes, tiles and other sloped coverings.

 Specification

 

Description	Width	length	Weight	Thickness	Usage
ASTM D-226 roofing felt 30#	36in 0.914m	72ft 21.95 m	23.5kg	1.2mm	A roofing felt  used as an underlay beneath  asphalt shingles,  wood shakes,  tiles  and other  sloped coverings.
ASTM D-226 roofing felt 15#	36in 0.914 m	144ft 43.89 m	23kg	0.8mm
ASTM D-4869  roofing felt 15#	36in  0.914m	144ft 43.89m	16.5kg	0.6mm
ASTM D-4869  roofing felt 30#	36in 0.914m	72ft 21.95m	13.5kg	0.8mm

 

Technical capacity index

 

Test item	ASTM D226 15#	ASTM D226 30#	ASTM D4869 15#	ASTM D4689 30#
Pliability at 23±2°C.tested shall not crack when bent 90°at a uniform  speed over a rounded corner of radius in table for each	12.7mm (radius)	12.7mm (radius)	12.7mm (radius)	12.7mm (radius)
Tear strength at 23±2°C min	2.5N	2.5N	2.5N	2.5N
Breaking strength at 23±2°C min MD	30LBF/in	40lbf/in	30lbf/in	40lbf/in
Breaking strength at 23±2°C min CD	15lbf/in	20lbf/in	15lbf/in	20lbf/in
Loss on heating at 105°Cfor 5h max	4.0%	4.0%	6.0%	6.0%
Width of the roll	36 in	36 in	36 in	36 in
Area of the roll	432 ft2	216 ft2	216 ft2	216 ft2
Net mass of saturated felt,min	560 g/m2	1270g/m2	400g/m2	660g/m2
Saturation,%by wt., min	120%	150%	100