Installation guide

Transcription

Installation guide

FOREWORD
SOPREMA’s installation manuals are designed to provide
quality-conscious roofing professionals with the most appropriate
installation procedures for SOPREMA systems to ensure the best
possible performance. Using text and images, each manual
describes the ABCs of a specific roofing system, in this case, ALSAN
FLASHING. It provides sound advice and detailed information on
products and tools as well as installation instructions.
Note: In this case, ALSAN FLASHING is not a system, but rather a waterproofing product
that can be used within other waterproofing systems. It is used as a cap sheet or as general
waterproofing when conventional solutions are not appropriate or when the installation of
the membrane cannot be done in a proper way.
Other more general references on SOPREMA products have also
been published by the company and are excellent work tools,
depending on the requirement. They include the Safety Plus Guide,
the Roofing Systems Specifications Manual, and the Roofer’s Guide,
all of which are accepted and used by the roofing industry.
SOPREMA is increasing its efforts to create new information tools,
like this manual, to help roofing professionals find the answers to
their questions and discover the highly superior performance of
appropriately installed SOPREMA products.
Technical roofing information documents available from SOPREMA
Safety Plus Guide
•
•
•
•
Presentation of high performance SOPREMA roofing systems
Specific specs for each system
Summary of installation procedures for each system
Safety rules recommended by SOPREMA
Roofing Systems Specifications Manual
• Presentation of SOPREMA roofing systems
• Roof details
• Master specs
Roofer’s Guide
• General application guidelines for all SOPREMA products
• Safety rules recommended by SOPREMA
Installation Manuals
• COLVENT
• SOPRAFIX
• ALSAN FLASHING
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ALSAN FLASHING Installation Manual 2006
TABLE OF CONTENTS
1 Insurance and Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Description of the ALSAN FLASHING . . . . . . . . . . . . . . . . . . 4
3 Products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Surface Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Additional Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Safety Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3
SECTION 1 INSURANCE AND LIABILITY
This manual provides a detailed description of the installation
techniques recommended by SOPREMA Inc. to ensure a quality and
safe installation for both the installers and the building itself.
However, provincial associations, insurance companies, and other
local authorities may impose safety regulations that are not included
in this manual. It is thus the responsibility of the contractors carrying
out the work to make sure that their installation methods comply
with the requirements of their respective insurance companies,
associations, and local authorities.
Note: SOPREMA Inc. is only liable for its own products subject to the applicable
terms and conditions and legal restrictions.
SOPREMA Inc. cannot be held liable for any damage whatsoever arising from:
• The use of products that have any patent defects,
• The use of products that have been modified in any way, or
• The use of products in a way that is contrary to the standards of good practice
and/or the rules laid down by SOPREMA Inc. as of the delivery date.
SECTION 2 DESCRIPTION OF THE
ALSAN FLASHING
The ALSAN FLASHING is a waterproofing one-component
polyurethane / bitumen coating. It is used for the upstands and
roofing details where it is difficult to apply waterproofing
membranes (example: complex upstands with numerous angles,
hard to reach areas due to their narrowness or their environment,
circular flashings, etc.).
ALSAN FLASHING is ready-to-use. It is installed directly over
traditional bituminous waterproofing or approved substrates.
This liquid waterproofing process applies where torches are
prohibited or dangerous (example: inflammable environments, sky
light flashings, etc.).
The ALSAN FLASHING has a 100 g/m2, 150 mm-wide (6 in)
reinforcement, that must be installed at all angles and joints
between two supports.
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SECTION 3 PRODUCTS
Here is the essential information on ALSAN FLASHING
and FLASHING REINFORCEMENT.
ALSAN FLASHING
Definition
Ready-to-use waterproofing
one-component polyurethane /
bitumen coating
Destination
Upstands and roof details
Presentation
Thixotropic paste
(Mixing reduces the viscosity)
Colour
Brown
Viscosity
Brookfield at 25 °C 35 000 centipoises
Solids contents
80 % ± 2 %
Flash point
2.5 °C
Format
19 litre container
Inflammable
Yes
Covering Power
0.75 l/m2 [19 litres covers 25 m2 (270 ft2)]
FLASHING REINFORCEMENT
Definition
Flexible reinforcement made of a woven
100 g/m2 polyester
Use
Upstand angles, support junctions
and joints
Format
0.15 m (6 in) wide x 30.5 m (100 ft) long strip
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SECTION 4 TOOLS
Attention
The right tools are important for the successful installation of a
quality waterproofing system. It is thus very important to have all
the appropriate tools on the worksite that are required for installing
the product. Moreover, these tools must be specially adapted to the
materials being used.
The roofing industry is in constant evolution, which means that new
materials, new procedures, and, in certain cases, new tools regularly
show up on the market. It is thus the responsibility of the contractors
to make sure that their workers have the tools required to produce
quality work.
Tools required for the installation of ALSAN FLASHING
• Paint roller and metal tray
• Trowel
• Paint brush
• Rubber gloves
• Independent breathing apparatus
(for applications in enclosed areas)
Tool maintenance
The tools can be cleaned with petroleum solvents such as mineral
gas, varsol or xylene.
SECTION 5 SURFACE PREPARATION
The following installation recommendations are specific to the
ALSAN FLASHING. They detail the application techniques relating
to the various substrates. We recommend consulting the Roofer’s
Guide to become familiar with the handling procedures of
elastomeric bitumen waterproofing products.
Acceptable supports for ALSAN FLASHING
• SBS modified bitumen membrane without loose particles or
plastic film (or one that has had these components removed)
• Structural concrete and concrete panels
• Wood and plywood
• Non coated metals and pre-painted metals
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SBS modified bitumen membrane
• The membrane must be clean, dry, dust-free and free from any
loose particles.
• On granulated surfaces, the loose granules must be removed or
embedded.
• Thermofusible plastic film must be burnt prior the application of
ALSAN FLASHING.
• Sanded sheet membranes or part of membranes whose bitumen
is protected by a release sheet do not require any particular
preparation.
Structural concrete and concrete panels
• The structural concrete must be at least 28 days old.
• The surface must be dust-free and have no other substances that
can interfere with the adherence.
• Any residue must be removed by cleaning, sanding, or high
pressure washing.
Wood and plywood
• The supports must be clean, dry, dust-free and free from any
loose particles that could interfere with adherence.
Non coated metals and pre-painted metals
New structures:
• Grease must be removed from all steel components.
Repairs:
• All steel components must be free from traces of oxidization.
• The support must be free from non-adhered particles or other
substances that can interfere with adherence.
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SECTION 6 INSTALLATION
FLASHING upstand
A waterproof upstand is achieved by applying two layers of ALSAN
FLASHING (0.75 l/m2) and a reinforcement with a minimum width of
0.15 m (6 in) at all angles and joints between two supports.
FLASHING REINFORCEMENT installed on the top of the cap sheet
ALSAN FLASHING (first layer)
ALSAN FLASHING (second layer)
ALSAN FLASHING
FLASHING
REINFORCEMENT
BASE SHEET
CAP SHEET
FLASHING REINFORCEMENT installed between base and cap sheet
ALSAN FLASHING
FLASHING
REINFORCEMENT
BASE SHEET
CAP SHEET
Note: When the field surface’s waterproofing system is made of two layers, it is possible to
achieve the FLASHING upstand by installing the FLASHING REINFORCEMENT on the base
sheet. To do so, you must verify that the eventual thermofusible films have been burnt.
When a thermofusible cap sheet is applied according to this process, you must avoid
exposing the ALSAN FLASHING to heat welding. Instead, you must burn the thermofusible
film along the last 50 cm (20 in) of the membrane and fold it over the base of the FLASHING
upstand while the bitumen is still hot. When the FLASHING upstand is installed on a
granulated surface such as a mono layer system or an existing membrane, the loose
granules must be removed or granules must be embedded to allow a good adherence of the
ALSAN FLASHING to the bitumen.
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STEP 1
Impregnation coat
Using a paint brush, roller or trowel, coat the transition at the bottom
of the upstand with a layer of ALSAN FLASHING 100 mm (4 in)
horizontally and 100 mm (4 in) vertically. Do not spread more that
3 m (10 ft) of adhesive at once.
STEP 2
Reinforcement
Follow immediately with FLASHING REINFORCEMENT that is
installed on the humid impregnation coat using a trowel or paint
brush. Repeat this step so as to cover the entire surface to be treated.
The FLASHING REINFORCEMENT strips must overlap each other by
a minimum of 50 mm (2 in).
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STEP 3
1st waterproofing coat
Using a paint brush, roller or trowel, immediately coat the top of the
FLASHING REINFORCEMENT and the overall upstand with a coat of
ALSAN FLASHING.
STEP 4
2nd waterproofing coat
When the first coat of ALSAN FLASHING is dry, finish covering the
upstand with a finish coat along the entire surface covered by the
first coat.
Note: Covering time:
• Covering of the reinforcement by the 1st coat of ALSAN FLASHING:
immediately after applying the reinforcement.
• Covering the 1st coat with the 2nd coat of ALSAN FLASHING:
2 to 3 hours after installing the 1st coat.
These minimal delays are given for indicative purposes and correspond to the polymerisation
of the ALSAN FLASHING at an ambient temperature of 20 ºC. Favourable atmospheric
conditions such as heat, humidity and wind can noticeably reduce this amount of time.
10
Junction between two supports
The junction between two supports is reinforced with an FLASHING
REINFORCEMENT installed on the joint with ALSAN FLASHING
using the same procedure as described earlier (example: joint
between two ply-woods).
ALSAN
FLASHING
ALSAN FLASHING
(first layer)
ALSAN FLASHING
(second layer)
CAP SHEET
BASE SHEET
SUPPORT PANEL
INSULATION
VAPOUR BARRIER
STRUCTURE
ALSAN FLASHING
ALSAN FLASHING
CAP SHEET
BASE SHEET
SUPPORT PANEL
INSULATION
VAPOUR RETARDER
STRUCTURE
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SECTION 7 ADDITIONAL NOTES
Metal flashing
The adherence performance of the ALSAN FLASHING allows to
discontinue using products such as metal flashings, termination
bars, grooves, etc.
Weather conditions
ALSAN FLASHING must be installed:
• On a dry support.
• At a temperature between 5 and 35 °C.
ALSAN FLASHING must not be installed:
• When rain is forecasted within 12 hours of installation.
• When there is a risk of exposure to any type of water within
12 hours of its installation.
Waterproofing systems on the field surface
All SOPREMA modified bitumen membranes can be installed on the
field surface to the base of the upstand. In all cases, at the end of the
day, or in case of bad weather, waterproofing work in the process of
being installed must be protected, especially at the base of the
upstands by using one of the following solutions:
• Seal with ALSAN FLASHING.
• FLASHING REINFORCEMENT glued square with the
ALSAN FLASHING at the base of the upstand.
Slopes
As with all non protected waterproofing systems, ALSAN FLASHING
must be installed on a surface that has a minimal slope of 1%. The
surface must slope evenly and continuously towards the drains.
ALSAN FLASHING is not recommended in areas that are
permanently exposed to water.
Covering existing ALSAN FLASHING coating
The use of a primer, to allow a better adherence, is not required
when a new coat of ALSAN FLASHING is used to cover an existing
one. However, the top membrane must be free from all traces of dust
and humidity.
12
Upstand protection
ALSAN FLASHING is made to resist ultraviolet rays (UV). However, it
is possible to apply one of the following optional finishing methods.
Optional finishing methods
Ceramic granules:
Ceramic granules can be applied to the wet (not skinned over)
ALSAN FLASHING finish coat.
• Plan on using approximately 1.2 kg/m2.
• This application is done from bottom to top by using,
for example, a plastic trowel.
• The granules can also be applied later by applying a thin ALSAN
FLASHING membrane (250 g/m2) that will be used as an adhesive
for the granules.
CURAL:
To obtain an aluminium colour finish, it is possible to install a
200 to 250 g/m coat of CURAL.
2
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SECTION 8 SAFETY MEASURES
EXTREMELY FLAMMABLE product and vapours
Contains toluene and methyl ethyl ketone
• No smoking.
• Use in a well ventilated area.
• Keep away from heat and flames, such as a pilot flame.
• Keep away from all objects that produce static electricity and
sparks such as an electric motor.
• Vapours are heavier than air and can spread to ignition
sources and create a flame.
• Flash point: 2.5 °C.
TOXIC products
Contains Isocyanate
• Limited exposure: 0.005 ppm.
• If the exposure limit is exceeded, it may cause an allergic
reaction if inhaled or when in contact with skin. Allergic
reactions can occur a long time after being exposed.
• Avoid inhaling product vapours.
• Avoid contact with skin, eyes, and clothes.
• Wear protective equipment such as gloves,
safety glasses, etc.
• Should not be used inside or within a confined area unless
extreme safety precautions are taken.
• Wear an appropriate protective breathing apparatus
(only an independent breathing apparatus is
completely efficient).
Consult the material safety
data sheet prior to use.
14

Installation guide

Transcription

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