Report 7\_€12._( o j7-0003 /
iloc-Sw 1; //1/f/fry
Page 1 of 2
NO. 30 FELT PLAIN 2 SQ. ASTM D226
Description
A heavy-weight asphalt roofing felt made of a specially formulated organic sheet which
has been fully saturated with waterproofing asphalt. This sheet is pre-conditioned to lay
flat and remain stable during and after installation. Guidelines are provided every 2"
across the sheet to aid the roofer in keeping asphalt shingles aligned.
Uses
May be used as an eave protector on sloped roofing or as a complete high performance
underlayment beneath heavy roofing such as tile or metal.
Physical Specifications
Conforms to: ASTM D226
Average Breaking Strength:
Along fibre grain: Exceeds 7 kN/m (40 lb/in) of width
Across fibre grain: 3.5 kN/m (20 lb/in) of width
Average roll weight, lbs/roll: 57 (approx.)
Packaging
Roll width: 36" (0.09 m.) also available in 44"
Roll Contents: 216 sq.ft. (20 sq.m.)
Rolls per pallet: 25
Pallets size: 40"x 48"
Installation
1) DECK PREPARATION: Proper deck preparation is an essential step to ensure that
the roofing remains problem free.
When preparing roof deck:
• Follow all instructions supplied by the manufacturer of the shingles or other
roofing.
• Remove and replace any broken or decaying lumber.
• Remove loose nails and ensure that all decking is securely fastened to sound
framing members with proper fasteners.
• If installing new O.S.B. sheathing, allow a 3/16" gap at end joints and 1/8"
Pap at side joints.
Continued on next page
HAL INDUSTRIES INC■ WSITE alind.com
9681 -187 SEBSur Surrey, B.C.,V4N 3N3
PROTECTIVE CONSTRUCTION MEMBRANES Telephone: (604)888-0777
Toll Free: 1-800-663-0076
Fax: (604)888-1656
Page 2 of 2
NO. 30 FELT PLAIN 2 SQ. ASTM D226 Cont'd
2) ATTIC HUMIDITY: Check for adequate ventilation under the roof deck. High
humidity due to improper attic venting can cause wrinkles or ridging to occur in
some roofing materials. It can also cause new plywood or O.S.B. to expand
excessively which may also cause ridging in the roofing materials. Problems
caused by high humidity are usually of an aesthetic nature and may not be
protected by roofing material warranties.
3) UNDERLAYMENT INSTALLATION: No. 30 Felt Plain 2 SQ ASTM D226 asphalt
felt is a heavy sheet which suits a heavier style of finished roofing. When used
under lightweight roofing, such as asphalt shingles, No. 30 Felt Plain 2 SQ ASTM
D226 asphalt felt may telegraph expansion ripples to the shingles when deck
humidity is excessive.
To help avoid this problem:
• Roll the felt out and allow it to warm up before fastening down.
• Cut the felt into shorter segments (approx. 15 ft.) to reduce expansion
potential.
• Install extra nails in the felt at the time the shingles are placed.
• Eliminate humidity problems by improving attic ventilation.
Caution
Great care must be exercised in all phases of steep slope roof application. Follow the
safety guidelines of the safety authority having jurisdiction in your area.
The information provided herein, while not guaranteed, is to the best of our knowledge true and
accurate. Except when agreed to in writing for specific conditions of use, no warranty or
guarantee expressed or implied is made regarding the performance of any products, since the
manner of use and handling are beyond our control. The user of such information assumes all
risk connected with the use thereof. Nothing contained herein is to be construed as permission or
as a recommendation to infringe any patent.
Revised:Apr 30,2015 FE1400