07500 Membrane Roofing (Revised)

7/23/2019 07500 Membrane Roofing (Revised)

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Division 07 - Thermal and Moisture Protection

Section 07500 - Membrane Roofing

Part 1: eneral

1 01 Summar!

The work this section consists of providing all tools, labor, equipment and materials,and performing all operations in connection with installation of membrane roofing.

1 01 01 Section includes

01.0 Bituminous Roofing Membrane

0.0 Modified Bituminous Roofing Membrane

0!.0 "#$ Roofing Membrane

0%.0 &nsulation

0'.0 Roof "rotection

0(.0 )ccessories

1 01 0" Related Sections

0**00 Roof +pecialties and )ccessories

0*00 -oint +ealers

1 0# References

1 0# 01 $%%licable Standards

1 0# 01 0& 'nternational Standards

1 0 01 0! 01 &nternational +tandards rgani/ation &+

&+ !'*'2 $ontinuous hot3dip /inc3coated carbon steel sheet ofcommercial, lock3forming and drawing qualities..

&+ (!( 3 2 0 4rought aluminum and aluminum allo5 e6truded rods7bars,tubes and profiles. Mechanical properties

1 0# 01 0" Standards

1 0 01 0% 01 )merican +ociet5 for Testing and Materials )+TM

)+TM $*(2 +tandard +pecification for Mineral 8iber &nsulation Board

)+TM $1('2 +tandard Method for Measuring $ompressive "roperties ofThermal

)+TM $''!2 +pecification for Mineral 8iber Blanket

)+TM $'*92 +pecification, $ellular "ol5st5rene Thermal&nsulation

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)+TM ;'0!%2 Test Method for Breaking and sing a $ombination of"ol5ester and =lass 8iber Reinforcements

)+TM ;(1(!2 +tandard +pecification for +t5rene Butadiene +t5rene +B+Modified Bituminous +heet Materials >sing =lass 8iberReinforcements

)+TM ;(1(%2 +tandard +pecification for +t5rene Butadiene +t5rene +B+Modified Bituminous +heet Materials >sing "ol5esterReinforcements

1 0# 01 0( )ritish Standards

B+ 91*2 % Built3up roofing felt $ode of "ractice

1 0# 01 07 erman Standards *D'+,

;&? 1(*!'2

;&? 191(%312 1 Rigid $ellular "lastics &nsulating Building Materials2 Thermal&nsulating Materials

1 0# 01 0 .anadian Standards

$=+B !*="3'(M +tandard for2 Membrane, Modified, Bituminous,

"refabricated and Reinforced for Roofing

1 0& Definitions

1 0& 01 Technical Terms

$s%halt 3 a mi6ture of bitumen with a substantial proportion of inert mineral matter

)itumen3 a viscous liquid, or a solid, consisting essentiall5 of h5drocarbons and their,which is soluble in carbon disulfide@ and is substantiall5 non3volatile and softensgraduall5 when heated.

)uilt-u% roofing3 two or more la5ers of roofing sheets, bonded together with bondingcompound, to form a continuous waterproof covering.

.old roof3 roof in which an5 thermal insulation is beneath the roof deck

'nverted roof3 roof in which the thermal insulation is placed above the water proofing

Mastic as%halt3 a t5pe of asphalt composed of suitable graded mineral matter andasphaltic cement in such proportions as to form a coherent, voidless impermeablemass, solid or semisolid under normal temperature conditions, but sufficientl5 fluidwhen brought to a suitable temperature to be spread b5 means of a hand float or b5mechanical means.

Roof dec/3 part of the roof construction which carries the load

Substrate3 surface upon which roofing sheets are laid

arm roof3 roof in which the principal thermal insulation is placed above the roof

deck

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1 0& 0# $bbreviations

deg $ degree $elsiusma6. ma6imummin. minimumRA Relative Aumidit5> >nderwriters aboratories >+

1 05 Submittals

+ubmit the following in accordance with $onditions of $ontract and specificationsection 01!00.

1 05 01 Product Data

"rovide product data for each t5pe of roofing pl5, coating material and insulationboards specified, including label compliance, fire3ratings, finishes and maintenanceinstructions.

1 05 0# Sho% Draings

1 05 0& Sam%les

+amples of all materials used for the roofing shall be submitted to the


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$hecking suppliers test certificates and certificates of compliance to conform withspecification and referenced standards prior to assembl5 or installation.

$hecking suppliers deliver5 tickets for compliance with suppl5 order and specification.

1 07 Deliver!3 Storage and 4andling

1 07 01 Pac/ing and Shi%%ing;eliver materials to site originall5 packed b5 manufacturer in unopened containers."rotect materials during deliver5 to compl5 with manufacturerCs directions. ;amagedmaterials shall be replaced at $ontractorDs costs.

1 07 0# Storage and Protection

+tore materials at building site strictl5 according to manufacturerCs instructions. +toreproducts in a dr5 and ventilated place.

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Part #: Products

# 01 Precoating Material

"recoating material shall be used when roofing sheets are to be cemented ontoconcrete or metal decks.

# 01 01 )ituminous .oatings

Bituminous coatings ma5 consist of a bitumen solution or a bitumen emulsion,whichever fits the purpose better. The minimum content of bitumen shall be not lessthan !0 F.

# 0# )onding Material

Bonding material for bituminous roofing sheets shall be Dmastic asphaltD compl5ing withB+ (', t5pe R 99 or an equivalent +tandard.

# 0& )edding a!er

The bedding la5er shall be of perforated, glass fiber reinforced bituminous roofingsheet, compl5ing with )+TM 1*9 or an equivalent +tandard.

# 0" 6a%or )arrier

) vapor barrier is onl5 required in areas where the mean temperature in -anuar5 isbelow * deg $, or where e6cessive moisture conditions are anticipated within thebuilding.

#apor Barriers shall consist of bituminous, reinforced roofing sheets, compl5ing with;&? '1%!, or an equivalent +tandard.

&n case of elastomeric roofing sheets being used as waterproofing la5er, the min.

qualit5 for a vapor barrier shall be a pol5eth5lene "


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la5er ma5 be of grade with ! mm thickness and the second la5er grade 1 with % mmthickness and embedding of reflective granules.

The bitumen shall be modified b5 blending it with Datactic pol5prop5leneD )"". &t shallcompl5 with the requirements of $=+B !*3="3'(M or an equivalent +tandard.

"rovide roofing sheets in =rade 1 or =rade qualit5 as indicated.

# 0( 0& Modified )itumen Roofing Sheets *S)S-Modified,+B+ modified roofing sheets ma5 be reinforced with a pol5ester 7 glassfibercombination, glassfiber or with pol5esterfiber onl5.


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0.0 The sheet shall be capable of being bonded watertight to itself

during its lifetime. The bonding procedure shall be in compliancewith manufacturerDs recommendations.

0!.0 8or unprotected roofing and material used for upstands and roofproGections, sheets shall be >#3stabili/ed and meet therequirements of B+ !00 3 "t. 8! '000 hours or an equivalent+tandard.

# 07 Surface Protection

# 07 01 Surface Protection a!er

Bituminous protection la5ers shall have granules of min. ! kg7membedded in thecoating.

# 07 0# ravel

=ravel shall be washed natural gravel, aggregate si/e 1( to ! mm, and thickness 'cm.

# 07 0& Tiles

Tiles for being laid directl5 onto the insulation boards of Dinverted roofsD should have amin. thickness of % cm. Tiles which are laid in an5 bedding material ma5 be onl5 ! cmthick. Tiles on Dinverted roofsD, which are constantl5 used, should be laid in a bedding,preferabl5 of sand.

01.0 "rovide concrete tiles of min. % cm thickness, compl5ing with therequirements specified in +ection '00 3 "aving and+urfacing.

0.0 "rovide concrete tiles of min. ! cm thickness, compl5ing with therequirements specified in +ection '00 3 "aving andsurfacing, 5et with a reduced fle6ural strength, relative to the

thickness.

0!.0 "rovide terra//o tiles of min. % cm thickness, compl5ing with therequirements specified in +ection %00 3Terra//o and ?atural+tone 8looring.

0%.0 "rovide terra//o tiles of min. ! cm thickness, compl5ing with therequirements specified in +ection %00 3Terra//o and ?atural+tone 8looring.

# 0 'nsulation

# 0 01 'nsulation for ;arm Roofs;

# 0 01 01 Mineral


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0'.0 The compressive resistance shall be min. 90 k"a at ' F

deformation, when tested according to )+TM $1(' or anequivalent +tandard.

# 0 01 0# Pol!st!rene )oards


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elongation at break more than 1' F, when tested according to)+TM

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Part &: >ecution

& 01 eneral >amination


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0(.0! Tiles2 "rovide tiles of indicated t5pe and si/e. The5 shall be laid in

a sand bedding of ! cm thickness, sloped as the underl5ing. )separation la5er compl5ing with para 0 0!, shall be placedunder the sand bedding. -oints of ma6 ' mm thickness shall befilled with fine sand. )reas along walls, parapets or an5 roofproGections of less than a tile width shall be filled with gravel, .8ollow the e6ecution instructions of +ection 0'00 3 "aving and+urfacing.

& 0& 01 0# arm Roof ithout 6a%or )arrier

"rovide the following la5ers2

.Thermal &nsulation2 &nsulation boards of material indicated shall be laidloosel5 with butt Goints.

+eparation la5er2 +hall compl5 with para 0' and laid loosel5 ontothe thermal insulation.

4aterproofing la5ers2 The first la5er shall be loosel5 laid withoverlapping Goints of min. 9 cm full5 welded. )n5 further la5er,depending on the t5pe of waterproofing and the indicated amount

of la5ers, shall be full5 welded to the previous one. +elect weldingprocedure to compl5 with manufacturerDs instructions for theindicated material.8or unballasted roofs, the $ontractor shall propose acomprehensive solution for fi6ing the various la5ers to preventuplift, subGect to approval b5 the


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procedure to compl5 with manufacturerDs instructions for theindicated material.

0!.0 Thermal &nsulation2 &nsulation boards of material indicated shall belaid loosel5 in a staggered manner with close Goints. &nsulationmaterial without facing ma5 need a separation la5er 3 followmanufacturerDs instructions.

0%.0 "rotection la5er

0%.01 The last waterproofing la5er shall have granules of min. ! kg7membedded in the coating and shall be full5 bonded to the previousone b5 either bonding material or torch3welding, whichever isspecified for the indicated waterproofing la5ers.

0%..0 =ravel2 +hall be applied loosel5 in min. ' cm thickness onto aseparation la5er compl5ing with para 0 0!.

0%.0! Tiles2 "rovide tiles of indicated t5pe and si/e. The5 shall be laid ina sand bedding of ! cm thickness, sloped as the underl5ing. )separation la5er compl5ing with para 0 0!, shall be placedunder the sand bedding. -oints of ma6 ' mm thickness shall befilled with fine sand. )reas along walls, parapets or an5 roof

proGections of less than a tile width shall be filled with gravel 8ollowthe e6ecution instructions of +ection 0'00 3 "aving and+urfacing.

& 0& 0& $ccessories

& 0& 0& 01 .onnections to ?%stands

01.0 )long walls, parapets or bases for equipment separate strips ofwaterproofing sheets shall be applied, overlapping the hori/ontalwaterproofing. ) min. of two la5ers shall be welded to the upstands.The top la5er shall meet the requirements stated in para 0* 01.)ngle fillets consisting of insulation material shall be placed along

the edges.

0.0 The top elevation shall be min. 10 cm above the last la5er.

0!.0 The upper edge shall be fi6ed to the wall b5 aluminum cappingprofiles, bolted to the base b5 means of dowels and non3corrosivescrews, !0 cm on centers.

0%.0 The space between the capping and wall shall be filled with Gointsealant as indicated, compl5ing with +ection *00 3 -oint +ealers.

0'.0 The sealed Goint shall be covered b5 a formed galvani/ed sheetmetal strip, preferabl5 fi6ed b5 clipping it to the bolts of the cappingprofile see )nne6 (, 8igure .

& 0& 0& 0# Roof Drains *'nlets,

Roof drains shall be of ultra3violet stabili/ed "#$, unless otherwise indicated, with awelding3flange, compatible with the waterproofing material. ;rains for Dwarm roofsD withvapor barrier shall have two flanges. The top of the drain shall not be higher than theadGacent waterproofing. "rovide gravel stops for ballasted roofs with fittings for beingconnected to the drain. The5 shall be of galvani/ed steel , unless otherwise indicated.

& 0& 0& 0& Roof Pro@ections

8or roof proGections like pipe stacks etc. prefabricated elements shall be used. &f theseare not available for the indicated membranes, the connection with the hori/ontalwaterproofing shall be prepared according to manufacturerDs instructions with the

greatest care. "ipe clamps shall be used to secure the vertical part in place. The topshall be covered b5 a metal flashing and the space between the flashing and the

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proGection filled with Goint sealant as indicated, compl5ing with +ection *00 3 -oint+ealers.

& 0"


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Part 5: )asis of Pa!ment

5 01 eneral

"a5ment will be made for complete work including furnishing all material, equipment,tools, scaffolding, storage facilities, water, power, for all labor, samples and mock3ups,

coordinating work with other trades, checking, e6amination, testing, qualit5 assurance,cleaning and protecting.

5 0# $ncillar! or/s

Refer to 0*100 "art ' 2 Basis of "a5ment

The following ancillar5 works shall be included in the unit price rates2

$leaning and preparing the roof deck for installation works of this +ection

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$nne> : Tables and


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8ig. !2 &nverted roof I structural Goin

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07500 Membrane Roofing (Revised)

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Transcript of 07500 Membrane Roofing (Revised)