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roof underlay bitumen paper feltroof underlay bitumen paper feltroof underlay bitumen paper felt

roof underlay bitumen paper felt

  • Min. Order Quantity: 40000 Square Meters
  • Supply  Ability    : 3000000 Square Meters /Month
  • Width              :100mm
  • Color              : grey/black
  • Loading port       :QINGDAO
  • Payment Term       :L/C,T/T


Description

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

Asphalt-saturated organic felt is processed by making the paper base soaked in low-softening petroleum asphalt, then covered with high softening petroleum asphalt, and finally coated with isolating materials such as talk powder.


Specification

Width

100mm

Thickness

0.5mm/0.8mm

Color

Grey/black

According to properties, products are divided into two types: Type I, Type II

Test item

ASTM

ASTM

ASTM

ASTM

D226 15#

D226 30#

D4869 15#

D4689 30#

Pliability tested at 23±2°C:  not crack when bent 90°at 

12.7mm

12.7mm

12.7mm

12.7mm

a uniform speed over a rounded corner of radius in table for each

(radius)

(radius)

(radius)

(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

4.00%

4.00%

6.00%

6.00%

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%

120%

Features

1, Cold applied no open flame required; self-adhesion without bonding agent, safe application, no pollution, low carbon, economical.

2, Excellent adhesion, good self-coalescence, guarantees the integrity of waterproof layer.

3, Good rubber elasticity and elongation and shear stress.

4, Good performance at low temperature.

Applicable scope

Widely used in the industrial and civil building roofing, underground, Pool, tunnel, wooden & metal roofing. Applied in the chemical factory, garment factory, granary, especially used for cold places

Storage and handling

Asphalt saturated organic felts require protection form damage and the weather. store rolls upright in a dry
location and never install when wet or over a wet roof deck.



Weifang Dongsheng waterproof material Co.,Ltd

Tel:+8615064688312

Contact Person:amber

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