Reinforced Vapour Barriers MINIMISING CONDENSATION WITHIN BUILDINGS 2 Vapour Barriers THE KNOWLEDGE TO PRODUCE SOLUTIONS

The A. Proctor Group has, for nearly 50 years, been serving the construction industry with an extensive portfolio of technically advanced thermal, acoustic and membrane products.

The Group provides a wide range of high quality, innovative solutions which are designed to meet the continuously evolving requirements of the construction industry. Our commitment to keeping pace with this evolution has led to the group’s expansion, today encompassing multiple product sectors.

International supply within the construction industry demands creative solutions, tailored to specific requirements. We take time to investigate local knowledge of construction technology, climatic considerations and legislative standards. This attention to detail is essential to our global vision and continued growth within the international construction market.

We have been developing breather membranes and vapor barriers for over 25 years, and can provide vapor control and solutions for all areas of the , across a variety of sectors.

With increasing emphasis on the airtightness of the building envelope, the successful management of moisture vapor and air movement within all types of structures is more critical than it has ever been.

With our many years of experience, and a dedicated team of technical advisors, the A. Proctor Group can provide the wide range of solutions needed to meet even the most complex project requirements.

3 4 Introduction Vapour Barriers parts of abuilding specification, appears. sealisachieved anadequate anddurable canbemore complex thanit first parts ensuring tothemovementprovide of moisturevapourandair. abarrier Although this may appeartobeoneofthe morestraightforward istheimplementation ofa aspectofmitigating theserisks An important efficient, andmoreenergy takingmanagementof moistureintoaccountinthedesignprocessbecomesmorecritical. more airtight not only thelife ofthebuilding fabric, but alsothe healthofitsoccupants. As today’s becomeincreasingly better insulated, structures aspectofensuring managementofmoisturevapourwithin buildings isanimportant It haslongbeenrecognisedthatthe correct THE SOLUTION? CONDENSATIONCONTROL buildings. lossandpoorerperforming failure toreduceairleakagewillresultinincreasedenergy have becomemore critical. and The consequencesofincreasedlevels ofcondensationwillresultindamage tothebuilding structure aspectofbuilding design, becomesamoreimportant measuressuchasairconditioningandairtightness performance As energy tothehealthofoccupants. environment istherefore crucial The effect ofnothaving goodindoorairqualityisdramatic. spends90%oftheirtimeindoors.The average person The indoorliving lead tohealthissuesduepoorindoorairquality. problem,Condensation inabuilding isaserious asitmay causedampness,energyinefficiencies,rot,corrosion,mould EFFECTS OFCONDENSATION condensation risk. Domestic functionssuchaswashing, amountsofmoisture, cookingandcleaningcanalsoproducelarge leadingtoaneven higher groupsofpeoplegather,increases substantially wherelarge suchasinofficesorairports. The moistureproducedby theoccupantaccountsfor anestimated average of1.2litreswaterperday. This volume ofmoisture Building Occupancy completely. todry even years ofabuilding’s life, suchaswet start concreteandplastercantake monthsor moistureassociated withconstruction From thevery Construction Moisture SOURCES OFMOISTUREINABUILDING to aliquid, whichwe of seeintheform “condensate”. hold. Iftheairis cooled, thenitcannotholdasmuch moistureandtherecomesapointatwhichthewaterchangesfromvapour theair, thewarmer vapour; ofacolourless The airaroundusholdsmoistureintheform thegreateramountofmoistureitcan WHAT ISCONDENSATION? vapour barrier , typically asimplepolythene sheetto whichcan Vapour Barriers Properties 5

We understand whilst it may be tempting to opt for a cheaper, unreinforced membrane unreinforced during installation and throughout the understand a cheaper, be tempting to opt for whilst it may We and costly installation, slower with higher failure rates, itself to be a false economy, reveal this could ultimately of the building, life remedial works. Not only do the A. Proctor Group’s vapour barriers Proctor Group’s they also help protect the fabric from condensation risk, of the building A. do the Not only QGBC (Qatar Green Building GBR (Green Build Regulations), with energycomply codes such as Estidama, building efficient SGBC (Saudi Green Build Council) and OGBC (Oman Green Building Council). Council), The reinforcement grid gives great strength and tear resistance, producing membranes and easy to install. robust which are grid great strength and tear resistance, The reinforcement gives Reinforced vapour barriers on the other hand, are manufactured by laminating two layers of thinner membrane laminating two with a core by vapour barriers are manufactured Reinforced on the other hand, Varying performance characteristicsby altering the can then be achieved PE. normally multifilament mesh, of reinforcement to such as foils, along with giving the option to include additional layers, and thickness of membranereinforcement layers used, further enhance the membranes performance. A major issue with unreinforced vapour barriersA major issue with unreinforced is their tendency to puncture if snagged on a corner or a screw/nail during nothing to stop this small tear from ripping there is a along the whole membrane membrane, leaving As a single layer installation. causing untold damage to the fabric freely and reducing the energy of the building gaping hole where moisture and air can move the location and repairingvery Discovering these tears be to can prove difficult and expensive.efficiency of the system. UNREINFORCED membrane. vapour barriers a single layer Unreinforced to make of extruding by are manufactured layer a continuous of the performance characteristicsMany therefore of such membranes related to the thickness of the material are directly used, As the membrane membrane. need to use a thicker you etc. puncture resistance tensile strength, to get a higher vapour resistance, and detailing issues. which can then lead to installation they become less flexible becomes thicker, REINFORCED VAPOUR BARRIERS OVER REINFORCED VAPOUR 6 Products Vapour Barriers • CD=165N/50mm • • Key Features is. membrane a strong, airtight durable commercial applications. highmoisturevapourresistanceisnotanecessitybut Itcanbeutilisedwherevery Procheck 125isalightweightof reinforced whichcanbeutilised inavariety polyethylene vapourbarrier PROCHECK semi-open structure innewbuild andrenovation projects. semi-open structure with ontheinsideofroofand wall structures Procheck FR200isusedasafireretardantvapourbarrier PROCHECK • CD=130N/50mm • • • Key Features Nail tear81N /83N Tensile MD=175N/50mm Thickness 0.16mm Nail tear150N/190 Tensile MD=190N/50mm 350 micron Thickness 0.35mm ® ® 125 FR200 Advantages Advantages • • • • • • Fire retardanteuroclassB-s1,d0 Optimal vapourbarrier  Translucent Reinforced Improved airtightness infrastructure, lightcommercialbuildings infrastructure, Low /MediumRisk Applications eg. Procheck Vapour Barriers Products 7 Low/Medium Risk Low/Medium Schools, Offices, e.g. Commercial Infrastructure, Buildings Low Risk Applications eg. Applications eg. Risk Low Infrastructure, Warehouses, Light/Medium Commercial Buildings • •

Improved airtightness Improved Reinforced Translucent UV stable chlorine by Unaffected Improved airtightnessImproved Reinforced Translucent Chlorine by Unaffected • • • • • • • • • Advantages Advantages 300 500 ® ®

CD = 170 N/50mm CD = 130 N/50mm

Thickness 0.5mm MD = 280 N/50mm Tensile 150 N / 230 N Tear Nail Thickness 0.3mm MD = 230 N/50mm Tensile Nail tear 100 N / 125 N

Procheck 300 is a lightweight, reinforced, polyethylene, vapor barrier use within roof and wall for polyethylene, reinforced, Procheck 300 is a lightweight, moist air entering fabricbuilding the constructions and condensing within the insulation. warm, to prevent good resistance to tears scrim provides multifilament reinforcement and polypropylene, The woven, punctures. PROCHECK • • Key Features • • • Key Features •

PROCHECK A The vapor barrier polyethylene with good vapor resistance. Procheck Premier 500 is a strong reinforced nail tear resistance. improved scrim extrudedprovides multifilament reinforcing polypropylene woven The sheet is translucent leading system installation process and is the grade to ease the many utilised by manufacturers. 8 Products Vapour Barriers REFLECTATHERM • CD =200N/50mm • • Key Features as chlorine inswimmingpools. as chlorine vapour resistance. The aluminiumfoil isprotectedonbothfaces by polyethylene for situationssuch corrosive Profoil 861isaheavyweight, withanaluminiumfoil coretogive ahighwater reinforced vapourbarrier With anR-Value of0.78m condensation. Suitable for useinwalls, sideof theinsulation. onthewarm ceilingsandfloors initsclass withahighvapourresistancetoprevent performance interstitial combines thehighestthermal • • • Key Features PROFOIL 861 Nail Tear 130N/140 Tensile MD=290N/50mm Thickness 0.4mm Nail Tear 164N/ 157N Tensile MD=255N/50mm Thickness 0.5mm CD=190N/50mm

VAPOUR 2 K/W, leadingreflective vapourbarrier. Plusistheindustry Reflectatherm It

® WARM AIR Advantages PLUS • • • • • Unaffected by chlorine UV stable Reinforced Improved airtightness

COOL

Advantages AIR • • •

Improved resistance thermal Improved airtightness High vapourresistance WATER and convective heattransfer limitsairleakage structure Airtight enhanced durability Reinforcement for prevents tearing and liquidform passage ofmoistureinbothvapour restrict outerlayers Impermeable Procheck • Commercial Buildings Infrastructure, Pools, Factories, Textile High Risk-Swimming Vapour Barriers Products 9 2 >7500 MNs/g 165 g/m Sd >1500m Procheck A2 50m 0.148 mm 1.5m White 2 750 MNs/g Sd 150m 150 g/m Reflectatherm Plus 50m or 100m 0.50 mm or 3m 2.7m 1.5m, Silver / Black Silver 2 Clear lacquered aluminium Clear lacquered aluminium low for surface allows emissivity surface to and able Robust withstand tough site conditions • • >7000 MNs/g Sd 1700m 310 g/m Profoil 861 50m 0.40 mm 2m Blue / Silver Calculations as part of our technical ® CALCULATION ® 2 >500 MNs/g 238 g/m Sd 100m Procheck 500 50m 0.5 mm 2m Translucent 2 calculations allows analysis of heat and moisture movement in of heat and moisture movement analysis calculations allows >300 MNs/g 151 g/m Sd 64m Procheck 300 50m 0.3 mm 2m Translucent ® Fire resistant to A2,s1-d0 Fire resistant to diffusion tight vapour Water emissivity material, Reflective <0.05 Easy to install • • • • Advantages 2 220 MNs/g Sd 44m 94 g/m Procheck FR200 50 m 0.16 mm 1.6 m Black / white multilayer building envelopes, such as walls, taking into account regional weather such as walls, envelopes, building multilayer variations. SPECIALIST SERVICES WUFI WUFI to offer are pleased to be able We services. WUFI services. A2 ® * 2 MNs/g * Sd 25m Procheck 125 50m 0.35 mm 2m 90 g/m Translucent 126

CD = 400 N/50mm

Sd Roll Length Property Thickness Roll Width Weight Colour Water Vapour Resistance MNs/g Roll size 1.5m x 50m Roll size MD = 700 N/50mm Tensile Nail Tear 170 N / 130 N Tear Nail *not independently tested

PHYSICAL PROPERTIES PHYSICAL PROCHECK Key Features • • • Procheck A2, is a fire resistant, vapour and airtight membrane. Procheck A2, with its’ Class A2-s1,d0 fire Class with its’ A2, and airtight vapour Procheck membrane. is a fire resistant, A2, Procheck composition Its no contribution with to fire. non-combustible is considered to BS EN 13501-1, classification coating. foil and clear lacquer a pure aluminium with comprises glass fibre backing, of the 10 Case Study Vapour Barriers for vaporcontrol. future ofthefacilities,term choice makingthereinforced strengthof ProcheckPremier500thenatural expansion, thelong toensuring wascritical theuseofrobustWith inbuilt materials scopefor airport throughoutthehighoccupancyterminal. condensation risks efficiencyofthe building,the energy theHVAC ensuring optimally. systemsperform Thisreduces The tough, reinforced, provides airandvaportightlayer adurable Procheck500membrane increasing Procheck Premier500. the claddingsystemwhich incorporates Tiger Profilesmanufactured andinstalledthehighperforming works.were outthemaincontracting theofficial consultantontheproject, withKhansahebcarrying customs, immigration, andpoliceservices, drop-offandloungeareas. aswell asseparate Faithful+Gould whichwillcaterexclusivelyThe newterminal tobusiness jetsintheregionwillfeature dedicated 16000m The newexecutive at jetterminal Al MaktoumInternational DubaiSouthincorporates Airport, Al Maktoum International Al MaktoumInternational Airport Case Study 2 of the Procheck Premier 500 vapor barrier suppliedby the oftheProcheckPremier500vaporbarrier A. ProctorGroupLtd. Vapour Barriers Case Study 11 ) with reception area 2 ). 2 ), and basement (1,400m and basement ), luxury facility comprises (2,900m showroom a ground floor 2 2 Case Study Qatar Lexus Showroom, The 28,000m Procheck 300 has been chosen as a high-performance vapour control layer for one of the for a high-performanceProcheck 300 has been chosen as vapour control layer This brand new state of the art in Qatar. advanced Lexus car showrooms most technologically Co Abdulghani & Bros Abdullah for the flagship site was inauguratedshowroom as the region’s (AAB) dealership. and waiting lounges inspired by Zed gardens, an exclusive Lexus owners an exclusive first lounge located on the Zed gardens, and waiting lounges inspired by floor (1,200m The use of Procheck 300 reduces the risks of condensation, maintaining the highest level of the highest level maintaining the risksThe use of Procheck 300 reduces of condensation, with protection for commercial buildings provides moisture resistance throughout the showroom, yearsmany to come. Doha Sandwich Panels composite rigid panels were installed for the roofs and walls incorporating composite rigid installed for Doha Sandwich Panels panels were vapour control layer. polyethylene, reinforced, a lightweight, Procheck 300, Vapour Barriers “ [email protected] www.proctorgroup.com |+44(0)1250872261 Revised January 2021 Revised January proud and ourbrand.” ofthisheritage ourideas,with auniqueplatform tolaunch systemsandproducts. Iamfiercely role inourcontinuedsuccess.them playinganimportant Scotland provides us innovation backed upby anexcellentloyal andcommittedteam, oneof every I believe thesuccessof A.Proctor Group isdown toasolidfoundation of experience. contained inthisliterature maybesubjecttochange withadvances inusabilityand of APG productsfor theirintendeduseonthatproject. Pleasenotethat information engaged toadviseonanyprojectassessandsatisfythemselves the suitability purposesonly.information Itisfor theengineer, architectorotherrelevant professional do notconstitutespecifictechnicalrecommendationsandareprovided for general faith andconsideredtobefactual andaccurate atthedateofpublication. These The contentsofthisliterature areprovided by A. ProctorGroupLimited(APG)ingood Managing Director Keira Proctor