Specifications rib----14 M4-BHA SYSTEM SPECIFICATIONS
Roofing Products
IVI'!-VVIV V Giv 11VI11/4L
{ ALL ZONES•SUBSTRATE Roof Membrane materials e ials per 100 sq.feet
NAILED OR Premium t"fiberglass SBS
FULLY ADHERED Base Sheet*501 1 ply 301bs
Premium"'Type IV
2"- --2` Ply Sheet 1x500 2 plies 18 lbs.
T Premium 1"'Fiberglass
` •1' 'S Mineral Surface Ir502 1 ply 72 lbs.
' 183/.
933g'ie" T 31e"
Asphalt shall be as show n in D.2 333/e"
'
2037.' 3 Each mopping will weigh approx.
18/a"
V T I I tt 25 lbs per t oo square feet.
Slope in BASE SHEET ATTACHMENT Depending on Deck
Deck Type-Uninsulated Rating 12" Mech. Type Change Spec
_ See Gen. Req. Fast. Asphalt Number to Read"
dolidalloPCombust./Nailable Wood A 2" C.6 X M4-WU-BHA-H
Structural Concrete A 2" C.7 X M4-CU-BHA-H
Lightweight Concrete A 2" C.8 X M4-LU-BHA-H
Metal N/A N/A
Structural Wood Fiber N/A . N/A
Gypsum A 2" C.11 X M4-GU-BHA-H
Precast Slabs N/A N/A
Slope in Insulation Roofing Depending on Deck
Deck Type-Insulated Rating 12" Attachment Attachment to Type Change Spec
See Gen. Req. Insulation Number to Read'
Combust./Nailable Wood A 2" F.2 Hot Asphalt M4-WI-BHA-H
Structural Concrete A 2" F.4 Hot Asphalt M4-Cl-BHA-H
Lightweight Concrete A 2" F.5 Hot Asphalt M4-LI-BHA-H
Metal A 2" F.3 Hot Asphalt M4-MI-BHA-H
Structural Wood Fiber A 2" F.8 Hot Asphalt M4-SI-BHA-H
Gypsum A 2" F.6 Hot Asphalt M4-GI-BHA-H
Precast Slabs A 2" F.4; F.7 Hot Asphalt M4-PI-BHA-H
Refer to Tab 2 for General Requirements:Responsibilities,quality control,deck consideration,and other general topics.
Refer to Tab 11 for Products and Associated Materials information.
Refer to Tab 6 for Execution Specifications.
Refer to Tab 7 for Flashing Details. * Change last Character(H=Hot Asphalt):
S=SEBS Hot Asphalt
07/04-MAL 195 Click Here.Return to Table of Contents
4141alarkey
Roofing ProductsTM
B.U.R., Modified, & Steep Slope
Roofing Systems
4. Low Slope Roofing Installation Instructions
MaIaritey
Roofing Products-
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4 LOW SLOPE ROOFING INSTALLATION
Roofing Products
4.1 STORAGE & HANDLING sonnel, personal property, occupants or contents of the
The following is a list of Malarkey basic requirements building that is being roofed.
for handling and storing roof insulations, roofing Always keep first aid kits, emergency telephone numbers,
products,and construction materials. escape routes and area maps to emergency facilities in a
Unload, handle and store all roofing products and con place that is easily located.
struction materials with care. Thoroughly train all personnel on preventing and safely
Store all rolled roofing and materials on pallets, keeping it extinguishing fires.
off of the ground or roof deck. Thoroughly train all personnel in first aid procedures.
Check all material delivered to the work site for damage. Never allow contact between heated surface of the mem-
If any material is damaged, contact your roofing products branes, adhesives, and flame equipment to your skin,
distributor to resolve the issue.All damaged material must hair, or clothing.
be removed and replaced. Malarkey will assume no liabil-
ity for damaged material once it has been released from Have the correct type and number of fire extinguishers
Malarkey's manufacturing or warehouse facilities. near the area being roofed, and the area where the roof-
ing kettle or tanker is located.
Protect all roofing materials and construction products
from weather before,during, or after delivery. Properly store and handle flammable materials.
Store all roll goods on end in a dry, clean, safe area. Only use flammable materials in safe,well-ventilated areas.
Use breathable tarpaulin or covers to allow venting and Maintain and service all roofing equipment.
protection from the weather of the roofing materials. En-
sure that all unused materials at the end of each working 4.3 INSULATION
day are protected as described above. Malarkey recommends that you research the types and
All lightweight insulation products must be stored. and advantages of the many insulation products that are avail-
properly weighted to avoid wind related damage. able when considering incorporating insulation into your
Malarkey roof system.
Protect any roll goods,adhesives.and coatings from freezing.
Installation can vary greatly depending on the deck type,
When storing materials, ensure that the container or area wind uplift requirements, roof slope and performance.
is designed for that purpose and will not endanger any
of the occupants, or contents of the building that is being Should you have any questions on whether the insulation
roofed. that you are considering will work with and meet Malarkey's
minimum standards, contact our Technical Department.
Materials stored on the roof surface shall be dispersed
to avoid concentrated loading. Larger concentrations shall 4.3.1 POLYISOCYANURATE
be set over major structural members. Polyisocyanurate (Polylso), is a rigid foam insulation
board that consists of closed cell, blown pentane deriva-
4.2 SAFETY tives with a facer.
Malarkey recommends that all applicable safety standards
and good roofing practices be followed Polyisocyanurate is the most commonly used roof insula-
tion in roofing systems because of its great thermal resis-
All roofing and construction personnel are responsible tance, lightweight nature, and ability to be installed with
for their own safety on the work site, as well as for those conventional roofing practices.
around them.
Polyisocyanurate can be manufactured in various thick-
Roofers should always wear and maintain their personal nesses and made to provide roof slope. It is also available
protection equipment (PPE) when handling or installing with a perlite cover board. or an oriented strand board fac-
components of the roofing system. tory laminated to surface.
Keep the roofing and staging areas clean. Malarkey requires that a cover board or a layer of#1000
ESHAventTM venting base sheet be installed over the
All roofing personnel must be properly trained to operate Polyisocyanurate before the application of the Malarkey
and install roofing systems safely and effectively. roofing membranes. Contact Malarkey's Technical De-
partment for details.
All roofing and construction materials should be stored
and protected in a manner as not to endanger any per-
www.MalarkeyRoofing.com•800-545-1191 4-1 Specification Manual 07/06-MAL
4 Mabriws, LOW SLOPE ROOFING INSTALLATION
Roofing Products-
4.3.2 EXPANDED POLYSTYRENE(EPS): Above roof deck insulation with a factory laminated nailable
This is a closed cell. rigid plastic made from petroleum substrate can be used under Malarkey roofing systems.
derived from crude oil, and formed into typical insulation The use of this product must be installed according to the
sizes and thickness. installation requirements and recommendations by the
Expanded Polystyrene can be manufactured as fill insula manufacturer of the product.
tion or to provide slope for roof decks Malarkey recommends that a thermal barrier (a low per-
Its light weight, low cost and ability to be installed with con- meance underlayment, vapor retarder/barrier, or a gyp-
ventional roofing practices make it a great alternative to sum roof utility board)be installed directly to the roof deck,
re-sloping roof decks with traditional framing techniques. staggered and secured, before the installation of the rigid
roof insulation with a factory laminated nailable substrate.
Expanded Polystyrene can be manufactured with an oh- This has been shown effective in reducing thermal trans-
ented strand board laminated to the insulation. fer between the joints/gaps in the decking that cause'pic-
ture framing'of the rigid insulation with a factory laminated
Malarkey requires that a cover board be installed over the nailable substrate.
Expanded Polystyrene before the application of the Ma-
larkey roofing membranes. Contact Malarkey's Technical Contact Malarkey if you have any questions regarding
Department for details. above roof deck rigid insulation with a factory laminated
nailable substrate.
4.3.3 PERLITE Malarkey will accept no responsibility for damage to the
This is an expanded volcanic ore that is blended with decking, building, or the contents of the building when
selected binders and fibers and formed into a homoge- above roof deck insulation is used.
neous board.
4.4 INSULATION ATTACHMENT REQUIREMENTS
Periite can be manufactured in various thicknesses and used FOR SPECIFIC DECK TYPES:
as fill insulation, a tapered insulated system, cant strip or ta-
pered edge strips, or as a cover board. 4.4.1 STRUCTURAL CONCRETE DECKS
Structural concrete decks are to be primed with asphalt
4.3.4 WOOD FIBER based primer. The insulation is set in a uniform mopping
This is an insulation/cover or recovery board that consists of asphalt at a nominal rate of 30 pounds per square.
of wood pulp. sugar cane, water that is blended with a
binder, and formed into a solid sheet/board. Other options for attachment are concrete fasteners with
insulation plates, or roof insulation adhesive (see Malar-
It can be coated with asphalt slurry on one or all six sides key's general requirements for concrete decks).
to reduce blisters and eliminate the need of priming for
some roof systems. 4.4.2 PRE-CAST CONCRETE DECKS
Pre-cast concrete decks are to be primed with asphalt
4.3.5 GYPSUM ROOF BOARDS based primer. The insulation is set in a uniform mopping
These are manufactured with a gypsum slurry, fire retar- of asphalt at a nominal rate of 30 pounds per square.
dant chemicals, and water and have various facers.
Other options for attachment are concrete fasteners with
Contact Malarkey for approval when using gypsum roof insulation plates, or roof insulation adhesive (see Malar-
boards as a recover, or roofing substrate. key's general requirements for concrete decks).
4.3.6 RIGID INSULATION WITH FACTORY 4.4.3 WOOD DECKS
LAMINATED NAILABLE SUBSTRATE Wood decks require the use of approved screw fasteners
The following information is intended for use on steep slope and plates that are secured through the roof insulation to
commercial applications when enhanced fastening is re- the wood deck.
quired.This is an alternative to the installation of an insulat-
ed steep slope commercial application that uses pressure Alternate attachments may be used only after submission
treated wood nailers and/or insulation stops for back nailing and approval by Malarkey's Technical Department before
of roofing plies and cap sheet. For residential shingle appli- job start (see Malarkey's general requirements for wood
cation over rigid insulation with a nailable substrate, refer to decks)
Section 7, Part 8 on page 7-4; Rigid insulation and venting
installation instructions for residential roofing systems.
07/06-MAL 4-2 Specification Manual www.MalarkeyRoofing.com•800-545-1191
Malarkey 4 LOW SLOPE ROOFING INSTALLATION
Roofing Products-
4.4.4 POURED GYPSUM DECKS 4.5.1 MECHANICAL ATTACHMENT
Poured gypsum decks require a layer of#501 SBS base FIGURE 6
sheet, mechanically attached with approved fasteners, - 24" 12"
over the entire roof deck surface and roof insulation (if
specified) installed on the base sheet using a uniform 6"
mopping of asphalt at a nominal rate of 30 pounds per o 0 o- a
square (see Malarkey's general requirements for poured
18"
gypsum decks).
4.4.5 LIGHTWEIGHT CONCRETE DECKS
18"
These require either a layer of#501 SBS Base Sheet or
an inverted #502 Mineral Surfaced Cap Sheet, mechani- o o a -- o
cally attached with approved lightweight concrete fasten-
ers over the entire roof deck surface and roof insulation 1 (ONE) FASTENER PER 2.67 SQUARE FEET(RIGID
(if specified) installed on the base sheet using a uniform INSULATION THICKNESS OF 1.1"AND GREATER).
mopping of asphalt at a nominal rate of 30 pounds per
square (see Malarkey's general requirements for light- 4-6 STAGGERING OF 4'X 8' INSULATION BOARD
weight concrete decks). FIGURE 7
— 18"--18"— 6
4.4.6 STEEL DECKS
Steel decks require the use of approved screw fasteners o 0 0 0
and plates that are secured through the roof insulation to 0 0
the steel deck. Fastener attachment shall penetrate the I 24"
top of the decking flutes, and extend a minimum of 3/4" o o d
from the bottom side of the steel decking. 12"
Alternate attachments may be used only after submis- 0 a '6"
sion and approval by Malarkey's Technical Department o 0 0 0-
before job start(see Malarkey's general requirements for - 6••
steel decks) 1 (ONE) FASTENER PER 2 SQUARE FEET(RIGID
INSULATION THICKNESS UP TO 1").
4.4.7 STRUCTURAL WOOD FIBER DECKS Start at the lowest part of the approved deck with a full
Structural wood fiber decks require a layer of#605 SBS layer of roof insulation. Maximum insulation size is 4'x 8'.
base sheet mechanically attached with approved fasten- Install approved plates and screw fasteners per the las-
ers over the entire roof deck surface and roof insulation tening pattern specified.
(if specified) installed on the base sheet using a uniform
mopping of asphalt at a nominal rate of 30 pounds per Continue to install full boards of roof insulation along the
square (see Malarkey's general requirements for wood lowest part of the approved deck.
fibered decks)
Start the second course with a 4'x 4'layer of roof insulation
fas-
4.5 INSULATION FASTENING PATTERNS and install approved plates and screw fasteners per the fas-
tening pattern specified.This pattern is designed to stagger
Board size, thickness, and type determine the type of fas- the insulation joints and prevent possible problems that can
tener, insulation plate and spacing. relate from a non-staggered insulated roof system.
The following patterns are Malarkey's standard attach- Continue the second course of roof insulation by installing
ment patterns for 4' x 8' rigid insulation: full layers of 4' x 8' insulation and install approved plates
and screw fasteners per the fastening pattern specified.
When the roof system requires enhanced fastening to
meet higher wind uplift, contact Malarkey's technical de- Repeat until the deck has been covered.
partment. A fastening pattern, listed as fastener installed
per square feet of insulation product type,will need to be 4.5.2 ASPHALT ATTACHMENT OF A SINGLE LAYER
met in order for the roof system to comply with the higher OF ROOF INSULATION
wind uplift.
Note: Malarkey recommends that any insulation (other
than cover or recover cover board) installed with asphalt
be limited to 4' x 4'. Contact Malarkey for details.
www.MalarkeyRoofing.corn•800-545-1191 4-3 Specification Manual 07/06-MAL
._� LOW SLOPE ROOFING INSTALLATION
4 R� Products-
Start - -
at the lowest part of the roof by mopping asphalt di- Cover boards may be installed in 4'x 8' sections.
rectly to the approved, primed deck (see general require-
ments for approved deck types and conditions prior to in- All Polyisocyanurate and Expanded-poly-styrene insula-
stalling any roof installation)at a rate of 30 lbs.per square, tion is to receive a cover board (perlite, asphalt coated
and install a full width layer of roof insulation. single sided wood fiber board, asphalt coated 6 sided
wood fiber board).Type, thickness, and attachment meth-
Set insulation into the fresh mopping of asphalt and care- od will be determined by the architect,specifier, or roofing
fully walk over the surface of the insulation to promote con- professional per the insulation manufacturer's attachment
tact of the bottom side of the insulation and the asphalt. requirements.
Do not kick or damage the insulation at any time during Malarkey recommends that polyisocyanurate be installed in
the roofing process. a single layer of a maximum thickness of 2".
Continue to install layers of roof insulation along the low- Mechanical attachment of insulation will be secured as
est part of the roof deck. recommended by the insulation manufacturer. If that infor-
mation is unavailable, refer to Malarkey standard insula-
Start the second course of insulation by installing a half tion attachment patterns.
sheet (2' x 4' for 4' x 4' boards, 4' x 4' for 4' x 8' boards)
into a fresh mopping of asphalt, at the nominal rate of 30 Metal insulation plates are to be used when mechanically
lbs. per square, directly to the approved, primed deck. attaching base sheet over insulation when torch down(APP)
membranes are used No plastic plates should be used
Set insulation into the fresh mopping of asphalt and care-
fully walk over the surface of the insulation to promote con- Malarkey will not accept any overlay of spray polyurethane
tact of the bottom side of the insulation and the asphalt. foam (SPF) roofs. A complete tear-off and removal of the
SPF roof to the deck must occur before attaching insula-
Do not kick or damage the insulation at any time during tion for a Malarkey roof system
the roofing process.
Continue to install layers of roof insulation along the low- 4.6 MEMBRANE INSTALLATION
est part of the roof deck. 4.6.1 GENERAL RULES
Repeat until the deck has been covered. Before installing any heavy duty base sheet or cap sheet,
the membranes must be cut to desired lengths and al-
4.5.3 ADHESIVE ATTACHMENT lowed to relax prior to installation.
Refer to adhesive manufacturers installation requirements. i Additional time and methods may be needed to fully al-
low the membrane to relax when installing in colder tern-
4.5.4 ADDITIONAL INSULATION REQUIREMENTS peratures. Contact Malarkey's Technical Department for
Install only as much insulation as can be completed(insu recommendations.
lation, base and interply)that workday. Malarkey #500 and #506 Premium ply sheets do not re-
quire possible, Malarkey recommends divorcing the insu-
lation screws and plates from the roofing system. Care must be used when staging, positioning and install-
Gaps along the joints of the insulation are to be less than ing the membrane.
1/4". All gaps in excess of 1/4" are to be filled with the All base sheets should be positioned and kept taut while
same insulation that is being installed. mechanically attaching.
Offset all side and end joints of the insulation layers a
minimum of 12".
Insulation will be set in position and walked in, to ensure
contact between the bottom of the insulation and the as-
phalt or adhesive used to attach the insulation to the deck
surface.
Kicking of the insulation is not acceptable and can result
in damage that will affect the layout and surface of the
insulated roof deck.
Malarkey recommends that all insulation attached with as-
phalt be a maximum size of 4' x 4'. Cover boards are the
exception.
07/06-MAL 4-4 Specification Manual www.MalarkeyRoofing.com•800-545-1191
LOW SLOPE ROOFING INSTALLATION
4! ngProd!!cts
1
4.7 BASE SHEET FASTENING PATTERN 4.7.3 BASE SHEET ATTACHMENT USING
TAPE&STAPLES
4.7.1 BASE SHEET FASTENING WITH 1"CAP NAILS Install 1 ply of specified base sheet so that the flow of water
is over or parallel to, but never against the laps.
4 Lap 2" on all sides, 6" on all ends, and turn up to the top
18"�,
12" of cant.
0 0 � Install a row of tape and staples at all side laps at 12"cen-
ters, and install 2 rows of tape and staples at 12" centers
along a line of 12" from each edge. Enhanced fastening
would be 9"on center for all rows.
18"
4.7.4 BASE SHEET ATTACHMENT USING HOT
v o 0 t ASPHALT&COLD ADHESIVE
9" 9" 12" Always stand above or on up-slope the deck side of the
installation when installing membrane to prevent asphalt
0 0 0 0 o t or adhesive displacement.
Install 1 ply of specified base sheet so that the flow of water Avoid foot and machine traffic over any newly laid mem-
is over or parallel to. but never against the laps. branes to reduce asphalt or adhesive displacement. This
Lap 2" on all sides, 6" on all ends and turn up to the top may affect the overall adhesion and performance of the
of cant waterproofing and could result in voids within the roofing
system.
Nail all side laps with 1" tin cap fasteners at 9" centers, Install a uniform mopping of asphalt at the nominal rate of
and install 2 rows of fasteners at 18"centers along a line 25 lbs. per square or cold adhesive at the nominal rate of
of 12" from each edge. 1.5 to 2 gallons per square directly to the insulation cover
board, and install 1 ply of specified base sheet so that
4.7.2 BASE SHEET FASTENING PATTERN USING the flow of water is over or parallel to, but never against
PLATES &SCREWS the laps. For cold adhesive attachment of base sheets
to cover board, Malarkey recommends using asphalt im-
pregnated wood fiberboard.
12;, Install the membrane without wrinkles, buckles, voids,
— 18" — fish-mouths, direct membrane to membrane contact. or
I direct lap to lap contact.
O O
Cut and patch any wrinkles, buckles. voids, fish-mouths,
membrane to membrane, or lap to lap with the like amount
18" and type of membrane a minimum of 6" beyond all sides
of the affected area set in hot asphalt or cold adhesive.
o b Lap 2" on all sides, 6" on all ends. and turn up to the top
12"r 12"
r r 12n
of cant achieving an asphalt or cold adhesive bleed out of
the seams of a minimum 1/4"to a maximum of 1".
o O o o-
When hand mopping, only mop ahead of the set roll 8' to
prevent the asphalt from cooling.
Install 1 ply of specified base sheet so that the flow of water
is over or parallel to. but never against the laps. When using cold adhesive, set all base, inter-plies, or cap
into the wet adhesive.
Lap 4" on all sides, 6" on all ends, and turn up to the top
of cant. Broom all plies to ensure a good bond between the as-
phalt or cold adhesive and the bottom of the membrane.
Install a row of approved plates and screws at all side laps
at 12" centers, and install 2 rows approved plates and
screws at 18" centers along a line of 12"from each edge.
www.MalarkeyRoofing.com•800-545-1191 4-5 Specification Manual 07/06-MAL
4 Malarkey LOW SLOPE ROOFING INSTALLATION
Roofing Products-
4.7.5 THERMALLY ADHERED BASE SHEETS asphalt at a rate of 25 lbs.per square or 1.5 to 2 gallons per
Malarkey ESHAventTM is a thermally adhered bituminous square of cold method adhesive.
waterproofing and ventilating base sheet membrane. The Install the membrane without wrinkles, buckles, voids,
top surface is coated with a weathering grade of SBS bitu- fish-mouths, direct membrane to membrane contact, or
men and surfaced with fine mineral sand. The underside direct lap to lap contact.
is covered with a perforated aluminum foil sheet. allowing
the adhesive SBS undercoating to"spot weld"to the deck Cut and patch any wrinkles, buckles, voids, fish-mouths,
or insulation. The "weld" is enhanced to its permanent membrane to membrane,or lap to lap with the like amount
bonded state upon application of a torch or hot asphalt and type of membrane a minimum of 6" beyond all sides
applied system. of the affected area set in hot asphalt or cold adhesive.
Concrete decks require the installation of asphalt primer Only install the adhesive per the manufacturer's require-
prior to the application of ESHAVentTM base sheet. ments.
All vertical surfaces require the installation of asphalt Asphalt or cold adhesive bleed out of the seams shall be
primer prior to the application of ESHAVentTM when used a minimum 1/4"to a maximum of 1".
as a part of the base flashing assembly
When hand mopping, only mop ahead of the set roll 8' to
Position ESHAVentTM over approved roof deck or insu- prevent the asphalt from cooling.
lation so that the flow of water is over or parallel to, but
never against the laps. Extend ESHAVent to the top of all When using cold adhesive, set all base, plies, or cap into
canted areas. the wet adhesive.
Re-roll 1/3 to 1/2 of the ESHAVent and carefully peel Broom all plies to ensure a good bond between the as-
the release film from the back of the ESHAVent before phalt or cold adhesive and the bottom of the membrane.
rolling back into position. Re-roll the remaining ESHAV-
ent and carefully peel the release film from the back of 4.7.7 INTER-PLY TORCH INSTALLATION
the ESHAVent before rolling back into position.
Torch weld inter-ply sheet so that the flow of water is over
Continue to install the ESHAVentTM over the remaining or parallel to, but never against the laps. Unroll first roll
roof deck or insulation. completely and set in position. Re-roll the membrane a
minimum of 6' or no more than 16' (1/2 of total length)
Carefully remove the release film located at the head lap making sure sheet remains aligned correctly.
of each course of ESHAVentTM and press the overlapping
base sheet into the head lap adhesive. Install the membrane without wrinkles. buckles,voids,and
fish-mouths.
Install a uniform layer of plastic roof cement a minimum of
3" wide under each end lap of the bottom course of ES- Cut and patch any wrinkles with the like amount and type
HAVentTM and press overlapping course into the plastic of membrane a minimum of 6" beyond all sides of the af-
roof cement. fected area
Install ESHAVentTM to the vertical wall surfaces before A propane torch flame will be applied to the exposed, out-
installing the fields inter-ply, surfacing or base flashing er surface of the membrane's underside in an even and
membranes. steady motion until the membrane reaches the application
temperature(350-400°F).
4.7.6 INTER-PLY HOT/COLD ADHESIVE ATTACHMENT An indicator of proper application temperature is the com-
When using cold adhesive, only base sheets are to be plete melting of the burn-off film and a slight compound
used: DO NOT USE CONVENTIONAL PLY SHEETS. flow that's present at the bottom of the rolled membrane.
Always stand above or on the up-slope side of the deck of Apply the flame with a steady'L'shaped motion that starts
the installation when installing membrane to prevent as- from the head lap side of the roll, towards the side lap of
phalt or adhesive displacement. the roll, then away from the applicator on the side lap side
of the roll from 8" to 18" then reversed (The flame should
Avoid foot and machine traffic over any newly laid mem- be split between the rolled membrane and the Base/Inter
branes to reduce asphalt or adhesive displacement. This ply 75% rolled membrane. 25% Base/Inter ply) and the
may affect the overall adhesion and performance of the rolled membrane is un-rolled slowly.
waterproofing and could result in voids within the roofing
system A minimum compound flow-out of 1/4" to a maximum 1"
of bitumen should be visible from all side and end laps of
Install all inter-plies so that the flow of water is over or paral-
lel to,but never against the laps in a uniform mopping of hot
07/06-MAL 4-6 Specification Manual www.MalarkeyRoofing.com•800-545-1191
lellarker 4 LOW SLOPE ROOFING INSTALLATION
Roofing Products
the membrane. This is an indication of a thermally sealed brane, centered over suspect seam, and torched into
membrane. place.
All laps that do not have a minimum 1/4" compound flow- Cap sheet laps should not be located on top of either inter-
out may be lifted, reheated and sealed. ply or base sheet laps.
If the reheated membrane does not achieve minimum 4.7.9 CAP SHEET HOT/COLD ADHESIVE ATTACHMENT
compound flow-out, strip off with a 10"wide layer of mem-
brane, centered over suspect seam, and torched into Install specified cap sheet so that the water flow is over or
place. parallel to, but never against the laps.
4.7.8 CAP SHEET TORCH INSTALLATION Cut cap to 1/3 of total length (10.6') for hot asphalt or
to longest workable length for cold adhesive, and allow
Torch weld specified cap sheet over the base sheet/inter- membrane to relax.
ply sheets so that the flow of water is over or parallel to,
but never against the laps. Position the cap membrane for installation and embed in
a uniform mopping of hot asphalt at a rate of 25 lbs. per
Unroll first roll completely and set in position. Re-roll the square. For cold adhesive, position cap membrane for in-
membrane a minimum of 6' or no more than 16' (1/2 of stallation and apply cold adhesive to the base sheet/in-
total length)making sure sheet remains aligned correctly. ter-ply sheet only, then embed cap membrane into wet
adhesive.
Install the membrane without wrinkles, buckles, voids,and
fish-mouths. Install the membrane without wrinkles, buckles, voids,and
fish-mouths.
Cut and patch any wrinkles with the like amount and type
of membrane a minimum of 6" beyond all sides of the af- When installing ESHAIum TM mop applied, immediately
fected area use a damp sponge or mop to cool the metal film after
the membrane has been hot mopped in place. Roll any
A propane torch flame is than applied to the exposed, delaminating metal facing with a silicone roller into the
outer surface of the membrane's underside; in an even heated membrane immediately after the membrane has
a steady motion until the membrane reaches the appli- been mopped in place, then use a damp sponge or mop
cation temperature (350 to 400 degrees). An indicator of to cool.
proper application temperature is the complete melting of
the burn-off film and a slight compound flow that's present Cut and patch any wrinkles with the like amount and type
at the bottom of the rolled membrane. of membrane to a minimum of 6" beyond all sides of the
affected area.
Apply the flame with a steady'L'shaped motion that starts
from the head lap side of the roll, towards the side lap of Broom or roll all cap membrane to ensure contact between
the roll, then away from the applicator on the side lap side cap membrane and the hot/cold adhesive.
of the roll from 8" to 18"then reversed (The flame should
be split between the rolled membrane and the Base/Inter 4.8 LOW SLOPE MEMBRANE INSTALLATION WITH
ply, 75% rolled membrane. 25% Base/Inter ply) and the SLOPES 1" OR GREATER
rolled membrane is un-rolled slowly.
Commercial roof systems over decks with slope of 1" or
A minimum compound flow-out of 1/4" to a maximum 1" greater require strapped installation. Strapped installa-
of bitumen should be visible from all side and end laps of tions are run parallel to the roof slope,
the membrane. This is an indication of a thermally sealed
membrane. Non-insulated nailable roof decks require no additional
nailers to attach components of the roof systems (edge
When installing ESHAIumTM torch applied, immediately metal. straight metal flanges, etc.). These components
use a damp sponge or mop to cool the metal film after the can be flashed as shown in the Malarkey commercial de-
membrane has been torched in place. Roll any delaminat- tails section of this spec book.
ing metal facing with a silicone roller into the heated mem-
brane immediately after the membrane has been torched Insulated roof decks require the installation of mechani-
in place. then use a damp sponge or mop to cool. cally attached wood nailers, the same thickness as the
roof insulation to the roof deck, at the edges of the roof
All laps that do not have a minimum 1/4" compound flow- deck. around penetrations (i.e. sheet metal, non-lead
out may be lifted, reheated and sealed. flashings), roof top equipment and projections (unless
roofer obtained a variance approved by Malarkey prior
If the reheated membrane does not achieve minimum to job start). Wood nailers or insulation stops are to be a
compound flow-out, strip off with a 10"wide layer of mem- minimum width of 3.5"and at least 1"wider than any of the
sheet metal flanges.
www.MalarkeyRoofing.com•800-545-1191 4-7 Specification Manual 07/06-MAL
� LOW SLOPE ROOFING INSTALLATION
4 Roofing odu"s
Wood nailers and/or insulation stops shall be placed in Malarkey believes that a roofing contractor should install
the field of the roof, perpendicular to the roof slope at the the surfacing to any roof system as soon as possible after
spacing intervals indicated on page 3-2, Figure 1. the plies have been installed. This will limit the exposure
of the plies to the weather.
Install all cover boards up to 3/4" in thickness directly
over the insulation and the wood nailers and/or insulation 4.10 COLD WEATHER INSTALLATIONS
stops. Mark the location of the wood nailer and/or insula-
tion stops on the cover board. (See General Requirements: Ambient temperature pre-
cautions for asphalt applied roofing systems at+50°F and
Installations where the cover board and insulation thick- below)
ness combined will equal the height or thickness of the
wood nailer may also be used.With this method,your fas-
teners will not penetrate the cover board.
Install the interply over the cover board and secure the
leading edge of the interply with one 1"cap head fastener
no more than 1-1/2"from the outside edge of the sheet at
all wood nailers and/or insulation stops.The fastener must
penetrate the wood nailer 3/4"minimum.
Install all overlapping interply as described above.
Note all fasteners of the interply shall be covered by the
amount of interply specified(i.e.two ply interply if installed
correctly will have 2 plies over each nail head).
Cap sheet installation does not require a staggered end
lap pattern and can be run in a common end lap configura-
tion as indicated in Figure 2 (page 3-2).
When securing strapped mineral surfaced cap sheet mem-
brane with insulation plates and screws. the cap sheet
shall be secured at the head lap with 4 plates and screws
in a straight line and evenly spaced. Overlapping mineral
surfaced cap sheet shall cover all plates and screws a
minimum of 6".
4.9 PHASING
Phasing is when sections of roof are partially completed
and left exposed for a period of time before continuing or
surfacing.
Whenever practical, phasing of your roof system should
be avoided.
Phasing can occur during the installation of the base, ply,
cap, or surfacing.
Problems such as blistering,delaminating,physical abuse,
other trade damage, and water intrusion can result from
phased roofing.
Incomplete sections of exposed base or ply sheets can
also accumulate dirt or contamination on its surface. and
can affect the bond between the adhesive and the rest of
the built up roofing membranes.
Any areas that are damaged due to phased roofing must
be repaired in a manner that is acceptable to Malarkey
before continuing the roof installation.
07/06-MAL 4-8 Specification Manual www.MalarkeyRoofing.corn•800-545-1191
4 Roofing Products M
TECHNICAL PRODUCT DATA SHEET
501 Modified Base (Formerly 501 PREMIUM1rM FIBERGLASS SBS BASE
SHEET)
PRODUCT DESCRIPTION
Product Use: Malarkey Roofing Products' (Malarkey) 501 Modified Base is suitable for use as a
base sheet for hot asphalt, cold process and torch applications. This high-performance base sheet
may be used over various combustible and non-combustible decks as the initial ply or multiple
interplies for a specified roof system. Please consult Malarkey for approval of roof systems.
Precautions: Malarkey 501 Modified Base requires dry storage and protection from the weather.
Do not apply wet base sheet. Roof decks should be sound, dry, smooth, meet necessary local
requirements and provide positive drainage.
Composition and Materials: Malarkey 501 Modified Base is manufactured on tested Malarkey
fiberglass mat impregnated and coated with an SBS modified asphalt and lightly surfaced with a
mineral release material.
Application Standards: Approval for use on all fire-rated roofs. See Malarkey manual for specified
information Contains the asphalt equivalent of Type G2 base sheet and may be used where a
quality base sheet is specified.
TECHNICAL DATA
Typical average properties, 3 sq. roll:
Weight/square 30.5 lbs. (14 kg)
Weight/roll 92 lbs. (41.8 kg)
Dimensions 39-3/8"wide x 99' long
(1 mx30.2m)
Thickness 45 mils
Lay lines 2", 12-1/2"and 18-3/4"minimum
(50.8 mm, 317.5 mm, 476.2 mm)
Meets or exceeds ASTM D 4601-98 Type II. Complies with and listed by UL, FM and WH.
APPLICATION PROCEDURE
Malarkey 501 Modified Base shall be applied as specified in the Malarkey Specification Manual. It
may be applied in cold weather. Please follow cold weather application and general requirements.
WARRANTIES
Malarkey offers various warranties to meet specific requirements. The warranty package includes
5.10.15 and 20-year limited and unlimited coverage. Contact Malarkey for full details.
TECHNICAL SERVICES
Malarkey has technical services assistance available for all phases of built-up roof coverings and
requirements. Contact Malarkey for details at(800)545-1191 or(503)283-1191; Weekdays 7:00
a.m. to 5:00 p.m. Pacific Time.
AVAILABILITY
Malarkey 501 Modified Base is available throughout North America and Pacific Rim countries. Visit
www.MalarkeyRoofinq.com for additional product information and availability.
Effective 11.08 1 Supersedes all previously published data For most current version go to www MalarkeyRoofing corn
4 miarkey
Roofing Productsrm
TECHNICAL PRODUCT DATA SHEET
500 Ply 4 (Formerly 500 PREMIUMI ' PLY SHEET)
PRODUCT DESCRIPTION
Product Use: Malarkey Roofing Products M (Malarkey) 500 Ply 4 is a high-strength ply sheet
suitable for use as an interply in multi-ply roof systems. This high-strength ply sheet may be used
over various combustible and non-combustible decks as the initial ply or in conjunction with multiple
ply roof systems. Please note precautions for product limitations. Please consult Malarkey for
approval of roof systems.
Precautions: Do not mechanically attach ply sheet to any deck. A base sheet should be specified
for mechanical attachment. Ply sheets are not recommended for cold process application. Malarkey
ply sheets require dry storage and protection from the weather. Do not apply wet ply sheets Roof
decks should be sound, dry, smooth, meet necessary local requirements and provide positive
drainage.
Composition and Materials: 500 Ply 4 Sheet is manufactured with pure coating asphalt on tested
Malarkey fiberglass mat and treated with a non-stick agent to facilitate unrolling. No mineral release
is used
Application Standards: Approval for use on all fire-rated roofs. See Malarkey Specification
Manual for specified information.
TECHNICAL DATA
Typical average properties, 5 square roll`
Weight/roll min. 36 lbs(16.3 kg)
Weight/square 7.2 lbs. (3.27 kg)
Dimensions 39-3/8"wide x 165' long
(1 m wide x 50.3 m long)
Lay Lines 2", 9-3/8", 12-1/2"and 18-3/4"minimum
(50.8 mm, 238.1 mm, 317.5 mm, 476.2 mm)
Breaking Strength 44 lbs. (19 9 kg)* F/in min , both MD&XM
Complies with ASTM D 2178-97a, Type IV and listed by FM and WH. Meets or exceeds the
requirements of UL 55 A Type G I for asphalt content and minimum weight.
500 Ply 4 is also available in a 10 square roll from the Malarkey South Gate facility.
APPLICATION PROCEDURE
500 Ply 4 shall be applied as specified in Malarkey Specification Manual with a specified base
sheet and/or surfacing. It may be applied in cold weather Please follow cold weather application
and general requirements.
WARRANTIES
Malarkey offers various warranties to meet specific requirements. The warranty package includes
5,10,15 and 20-year limited and unlimited coverage. Contact Malarkey for full details.
TECHNICAL SERVICES
Malarkey has technical services assistance available for all phases of built-up roof coverings and
requirements. Contact Malarkey for details at (800) 545-1191 or(503)283-1191, Weekdays 7:00
a.m. to 5:00 p.m. Pacific Time
AVAILABILITY
Malarkey 500 Ply 4 is available throughout North America and Pacific Rim countries. Visit
www MalarkeyRoofinq.com for additional product information and availability.
Effective 11.08 I Supersedes at previously published data. For most current version,go to www MalarkeyRoofing.corn
4 Roofing ProductsrM
TECHNICAL PRODUCT DATA SHEET
502 Cap (Formerly 502 PREMIUMI" FIBERGLASS MINERAL CAP SHEET)
PRODUCT DESCRIPTION
Product Use: Malarkey Roofing Products (Malarkey) 502 Cap is a fire-rated (FR) cap sheet
manufactured to meet the needs of a conventional, quality built-up roofing system. This cap sheet
can be applied with hot mopping asphalt or cold process adhesives. This product is used as a
surface sheet for multiple-ply roof systems. Please consult Malarkey for approval of roof systems.
Precautions: Malarkey 502 Cap requires dry storage and protection from the weather. Do not
apply wet cap sheet. Roof decks should be sound, dry. smooth. meet necessary local requirements
and provide positive drainage.
Composition and Materials: Malarkey 502 Cap is manufactured on tested Malarkey fiberglass
mat. The glass mat is impregnated and coated with oxidized asphalt, filled with fire-retardant fillers
and surfaced with ceramic granules for ultraviolet protection and weatherability.
Application Standards: Approval for use on all fire-rated built-up roofs. See Malarkey
Specification Manual for specified information.
TECHNICAL DATA
Typical average properties. 1 square roll:
Weight/roll 72 lbs. (32.7 kg)
Dimensions 39-3/8"wide x 33' long
(1 m wide x 10.5 m long)
Granule Adhesion Max 1.0 gram loss per ASTM D 4977
Thickness 90 mils
Listed by UL, FM and WH Complies with UL 55A Type G3. Meets or exceeds ASTM D-3909-97b.
APPLICATION PROCEDURE
Malarkey 502 Cap shall be applied as specified in the Malarkey Specification Manual with specified
base sheet and/or interply sheets. It may be applied in cold weather. Please follow cold weather
application and general requirements.
WARRANTIES
Malarkey offers various warranties to meet specific requirements. The warranty package includes
5, 10, 15 and 20-year limited and unlimited coverage. Contact Malarkey for details.
TECHNICAL SERVICES
Malarkey has technical services assistance available for all phases of built-up roof coverings and
requirements. Contact Malarkey for details at(800) 545-1191 or(503)283-1191, Weekdays 7:00
a.m. to 5:00 p.m. Pacific Time
AVAILABILITY
Malarkey 502 Cap is available throughout North America and the Pacific Rim countries. Visit
. www.MalarkeyRoofinq.com for additional product information and availability.
Effective 11 08 I Supersedes at previously published data For most current version,go to www MalarkeyRoofing corn