Walls and Rainscreen
COR-PLY
Rainboard
20 Minute Building Paper
30 Minute Building Paper
60 Minute Building Paper
Building Paper FAQ
How to do Rainscreen Right.

Rainboard is designed to bridge over spaced supports in a rainscreen wall system.

Provides rigid backing - excellent for stucco applications.

Exceptional resistance to water penetration.

Breathable - Aids in drying of wall.

The only choice for rainscreen stucco backing.

RAINBOARD

Wall and Rainscreen Products

HAL Industries Inc. manufactures a variety of breather membranes to suit whatever wall system your climate requires.

Asphalt building papers, sometimes called breather-membranes, have proven themselves over a very long history of use as protective weather barriers beneath exterior wall cladding. They "breathe" to let the wall release water vapour while at the same time they provide a barrier to water entry from outside. Building papers help to resist the effects of winds and drafts as part of an overall wall system.

The degree of attention that a moisture barrier must receive is entirely dependent on the wall's exposure to rain. If it is well protected with roof overhangs, then there is usually minimal risk of water damage. In areas of high rainfall, particularly in multi-unit "condo" buildings, a much greater focus on proper use and installation of breather membranes is imperative.

A wall must be water tight, but it must also breathe. There is usually a balancing act between those two functions. Industry standards now require the use of two layers of building paper. Two layers of Hal-Tex 30 Minute building paper makes a great barrier, yet it retains good breathability. An extra layer of building paper might cost $100 for an average house. However, repairs to leaky walls can cost thousands of dollars.

For extreme situations we highly recommend RAINSCREEN construction. Simply, this means to mount all cladding on strapping, allowing a three quarter inch air space behind it. This is simple, fairly low cost, and yet 100% effective if done right. Building science professionals are now routinely specifying RAINSCREEN construction.

For more information see our Building Paper Frequently Asked Questions and the article Breather Membranes for Wood Framed Walls.
 

Available Documents

Document Name (Click to view)

Document Format

Building Paper Frequently Asked Questions (FAQ)

Wall and Rainscreen Products

Click product name for more information

Product
Number

Standard
Compliance

Dimensions

Weight*

Count
per
Pallet

Total
Pallet
Weight*

W
L
sq. ft.

COR-PLY

BU0585

CAN 2-51.32
US UUB-790a

36"

40"

20

-

200

-

Rainboard

RBP505

CAN 2-51.32
US UUB-790a

40"

64"

17.7

3 lbs

200

699 lbs

20 Minute Building Paper

BU0100

CAN 2-51.32
US UUB-790a

40"

120'

400

16 lbs

100

1650 lbs

30 Minute Building Paper

BU0400

CAN 2-51.32
US UUB-790a

40"

120'

400

-

90

-

60 Minute Building Paper

BU0500

CAN 2-51.32
US UUB-790a

40"

90'

300

21 lbs

95

2045 lbs

5 Sq. 30 Minute Building Paper

BU0700

CAN 2-51.32
US UUB-790a

40"

150'

500

20 lbs

75

1550 lbs

Dry Kraft 20"

BU1550

-

20"

150'

250

7.5 lbs

75

1025 lbs

Dry Kraft 36"

BU1600

-

36"

166'

500

13 lbs

65

845 lbs

Dry Kraft 40"

BU1500

-

40"

150'

500

13 lbs

75

1025 lbs

#2 Dry Sheathing

BU1625

-

36"

133'

400

16 lbs

52

882 lbs

Double Ply 30

BU0580

CAN 2-51.32
US UUB-790a

40"

60'

200

21 lbs

46

1016 lbs

Flashing Paper

VA0700

CAN/CGSB-51.33
UUB-790a

12"

150'

150

10 lbs

126

1310 lbs

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* All weights and measurements are approximate. Please contact HAL Industries Inc. directly at 1-800-663-0076 to confirm specifications.
 

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