Is a Vapour Barrier Necessary - An Introduction to Vapour ...

A vapour barrier is an important component in building construction. Its purpose is to help prevent water vapour from reaching building walls, ceilings, attics, crawlspaces or roofs, where it can condense and cause building materials to rot or grow mould. Damage from water condensation due to water vapour movement (called "water vapour drive ...

Vapour barrier paint -- it does exist -- it does work.

That's the technical stuff, but it is easy to remember that less than 1 Perm is a functioning vapour barrier. So what makes a vapour barrier. Now the application of that is very interesting. Plastic and aluminium sheets are well under 1 Perm. Two coats of a good oil paint will provide a vapour barrier of less than 1 Perm as well.

Welcome to Ameetuff Technical Paints Industries ...

We excel in the production of Fire retardant paints for wood, structure steel, electrical, H.T/L.T cables, fire retardant fabrics and food grade Epoxy paint, Polyurethane Coating, Pure Acryl food and industrial coating, Non-Toxic coating for toys, Chlorinated Rubber, Anti Insect coating, Anti-fungal paint & anti-bacterial coating along with other type of specialised paints, e.g. Acid and ...

Gliden 1060 vapor barrier primer | Professional Painting ...

Joined Feb 3, 2011. ·. 47 Posts. #10 · Apr 24, 2014. VOC for the 1060 is under 100g/L (90), which is fine. It works very well. A vapor barrier has to have a perm rating under 1.0. Primers, for VOC purposes, are treated the same as non-flat paints. Save.

vapor barrier Archives - Tennis Court Resurfacing

Was a vapor barrier installed beneath the court when poured? Are there perimeter drains that can take the water away from the court when it runs off after a rain? Was the concrete allowed to cure for 28 days, prior to coating? Was the concrete surface acid etched to neutralize the alkalinity and balance the PH?


4.9. Protective Coatings or Membranes and Finishes A vapour retarder has to be installed. This material will fill the cells, improves mechanical resistance of the system, and is an additional barrier to vapour and liquids. 4.9.1 Vapour Retarder Mastic – PITTCOTE® 300 coating, an asphalt mastic, as supplied by Pittsburgh Corning.

SA PRIMER - Johns Manville

Property Asphalt Primer Specific gravity at 20°C 7.5 lb/gal (0.90 kg/l) Solids by weight 24% Viscosity, Brookfield (cP, 25C) 200 Drying time 15 to 60 minutes All values are nominal. Codes and Approvals for Selected Systems Precautions Johns Manville SA Primer is a combustible material and should be

How to Paint Concrete in Basements for a Moisture Barrier ...

Moisture barrier paint may only cover as little as 75 to 100 square feet per gallon, per coat of paint. Compared with regular paint, you may use three or four times more to cover the same square footage. Don't attempt to spray moisture barrier paint with a small paint sprayer.

DRYTEK Moisture Vapor Barrier - LATICRETE

DRYTEK Moisture Vapor Barrier epoxy during main application. Inspect these areas to ensure cracks are completely filled with no voids. 3. Non-moving joints, dormant cracks greater than 1/8" (3 mm) wide, can be patched with mixture of 1 part mixed DRYTEK Moisture Vapor Barrier and 3 parts clean, dry play sand. In a suitable container, such

Vapor Retarders - Roofing

A vapor retarder is a material or system that is designed as part of the roof system to substantially reduce the movement of water vapor into the roof system, where it can condense. Everyone knows that water in roof systems is never a positive. Typically, a vapor retarder has to have a perm rating of 1.0 or less to be successful.

SPARTACOTE® Moisture Vapor Barrier | LATICRETE®

SPARTACOTE Moisture Vapor Barrier is a single-coat, solids, liquid applied 2-part epoxy coating specifically designed for controlling the moisture vapor emission rate from new or existing concrete slabs. SPARTACOTE Moisture Vapor Barrier exceeds ASTM F3010 standard with a perm rating of 0.052 grains/h/ft 2 /in. Hg (3 ng/h • m 2 • Pa).

Bitumen Paint - Benzene International

Alfa coat PF4 Bitumen Paint Description Alfa coat PF4 Bitumen Paint is low viscosity blend of selected hard grade bitumen in solvent which dries to form a high quality tough bitumen film. Application As vapour barriers, damp proof courses, linings to potable water tanks and pipes to provide a continuous barrier to the passage of water and water ...

CBD-9. Vapour Barriers in Home Construction - NRC-IRC

The term "vapour barrier" is one which has come to be accepted in building technology as describing a special class of materials which offer a high resistance to the flow of water vapour. In general, vapour barriers are special building papers, membranes, or coatings designed for this specific purpose.

Vapor Barrier Paint & Primer Works Better than ...

Vapour barrier paint (or Vapor barrier paint in the U.S. ) is more of a solution for walls rather than ceilings to prevent the indoor vapour drive during hot humid weather. The reason as you may have read, is that when there is a vapour barrier in homes in hot humid climates that rely on air conditioning for human comfort, that vapour barrier ...

Latex paint formulations and methods - Lindsay Finishes ...

Paint products formulated with this technology include block fillers, spray flat paints, flat paints, traffic marking paints, semi-gloss enamels, gloss enamels, anti-corrosive steel primers, aluminum primers, wood primers, gloss and satin clear finishes for wood and other surfaces, wood stains and sealers, vapor barrier coatings, wall primers ...

Vapor Barrier Interior Primer Sealer 1060-1200

Airless Spray Application: • • A premium quality latex primer sealer and vapor barrier for interior gainst exterior paint adhesion failures caused by condensation. Moisture and Heat Loss - Every home contains moist air (water vapor) that, in the proper proportion, provides a healthy atmosphere. But under

Vapor barrier - Wikipedia

A vapor barrier (or vapour barrier) is any material used for damp proofing, typically a plastic or foil sheet, that resists diffusion of moisture through the wall, floor, ceiling, or roof assemblies of buildings to prevent interstitial condensation and of packaging.Technically, many of these materials are only vapor retarders as they have varying degrees of permeability.

Handbook for the surface treatment of concrete

(0.5–1.5 mm), it is unsuitable if you intend to apply a thin coating of paint or varnish. Scarifying or, alternatively, shot-blast cleaning, is the recommended method for industrial floors which are to receive a mass coating thicker than 1 mm. This ensures excellent coating adhesion to the surface.

Vapor retarders, air barriers, and roofing systems: What ...

Some air barriers are vapor open and allow moisture to escape. There are three classes of vapor retarders. The lower the perm rating, the less diffusion (i.e., less drying) occurs through a material. • Class I, Impermeable (vapor-proof), ≤ 0.1 perm: Built-up roofing membrane, perm rating 0.00-0.02. Single-ply membrane, perm rating 0.03-0.06.

Vapour Barriers ... when and where to use them

Polyethylene is an example of a Type 1 vapour barrier. Asphalt impregnated kraft paper is an example of a Type 2 vapour barrier. Type 1 vapour barriers are required in wall construction that has exterior sheathing with a high resistance to moisture movement (as is the case with the plywood and OSB sheathings used in wood-frame construction). It ...

Alfa Coat 5 bitumen paint - SlideShare

with Alfa Coat PF‐4 Bitumen Paint . Penetration Primer at a coverage of 0.1 ‐ 0.15 ltr/m2. Allow to dry prior to Alfa Coat 5 application. Membrane Application Stir the emulsion well before use. Alfa Coat 5may be applied by roller, brush or spray for a minimum of 2 coats.

Henry Vapor Barrier from ProCoat Systems- Beacon Supply ...

Low odor and environmentally-friendly, Air-Bloc 06WB is a single-component barrier comprised of an elastomeric asphalt-emulsion with crack-bridging capabilities. It provides a continuous air, vapor, and water barrier following application to most construction surfaces, curing to a tough, rubber-like finish.

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To meet the demands of the 21st century, the MBCC committed to a $615 million renovation and expansion. When complete in 2018, the 1.4 million-square foot LEED-certified facility will feature a 60,000-square foot grand ballroom, a 20,000-square foot glass rooftop ballroom, new technologically advanced meeting rooms and new indoor/outdoor public ...


The ALUMINUM ROOF COATING is a thick, homogeneous coating made of elastomeric bitumen, volatile solvents, and reflective aluminum pigments. It restores and protects metal surfaces from corrosion: roofs, cladding, storage tanks, water ducts, etc. This product can also be used to revitalize aging traditional asphalt roofs.


MASTIC ASPHALT VAPOUR BARRIER A mastic asphalt vapour barrier should be laid in one coat not less than 10mm thick on a glass fibre tissue. SKIRTINGS AND UPSTANDS SKIRTINGS AND UPSTANDS OTHER THAN TIMBER OR LIGHTWEIGHT CONCRETE On skirtings and upstands up to 300mm high the mastic asphalt should be applied in two coats to a thickness of 13mm.

Guide to Mastics, Coatings, Adhesives and Sealants

Trowelable, elastomeric, combustible vapor barrier coating. Fire resistant dry film with excellent adhesion and flexibility. The ultimate vapor barrier coating for outdoor applications. Used over low temperature insulations (except polystyrene) for spheres, tanks, piping and fittings. Solvent 0.06 Perms at .035" Film Thickness 110°F (43°C) I

Moisture Vapor Barrier - Sherwin-Williams

Moisture Vapor Barrier Primer/Finish Interior Latex is a coating designed to reduce the loss of moisture through walls and ceilings. It combines a primer and finish in a single, fast drying coat and is specially formulated for manufactured housing facilities.

Vapour Barrier or Drylok?? - Community Forums

A breathing paint can become a vapor barrier with a number of coats. With coatings, there is a range of vapor-proofing (or lack of breating) - it is not a yes or no situation. Films are different since they are produced in a factory and can be tested before application. I doubt there is any guarantee that Drylok is a vapor barrier. Dick

EEM-00259 Permeability of Common Building Material to ...

Asphalt-saturated but not coated sheathing paper 4.4 3.3 20.2 Asphalt-saturated and coated vapor barrier paper 8.6 0.2-0.3 0.6 15-lb asphalt felt 14 1 5.6 15-lb tar felt 14 4 18.2 Single-kraft, double 3.2 31 42 LIQUID-APPLIED COATING MATERIALS Thickness (in.) Commercial latex paints, dry film thickness Vapor retardant paint 0.0031 0.45

Sprayable vapour barrier coating | Idenden ET-150 | Bostik

Bostik Idenden ET-150 Sprayable Vapour Barrier Coating is ideal for use on internal and external insulated piping, air conditioning ducting and other equipment used in the thermal insulation industry. Also suitable for use as an asbestos encapsulant, ET-150 is easily applied by spray or brush to provide a durable and flexible, water-resistant ...