Pol-E-Base Modified Bitumen Roof System

Transcription

1 Pol-E-Base Modified Bitumen Roof System Specification Chemicals, Inc. produces the Pol-E-Base Built-up Roofing System as the ultimate in field applied reflective insulation roofing. It has the advantages of being self-adhering and very light weight. The system may be installed as either new construction or re-roofing. The final thickness of the monolithic surface is approximately 70 mils of tough acrylic plastic, bituminous resin, and synthetic rubber resin all reinforced with polyester spunlaced fabric. The Moisture Problem Solver Application does not require specific tools or equipment. The system is for use on sloped commercial roofs and for sealing seams of steel buildings. The self-adhering membrane at parapets and roof openings eliminates the need for expensive metal flashings and roof vents. The exposed surface of the system is the elastomeric product "White Plastic" a liquid high acrylic solids emulsion manufactured by Specification Chemicals, Inc. since It is U.L. listed. The flexibility of the Pol-E-Base and the waterproofing qualities of White Plastic make the Pol-E- Base roofing System a superior renewable roof. The self adhered products are cold applied and require no special installation tools. The fully adhered monolithic system requires no mechanical fasteners or metal flashings. Small jobs do not create a problem because very little installation equipment is needed. Special Properties Light Weight A major consideration for selecting the Pol-E-Base built-up Roofing System is its very light weight. It weighs just a fraction of the typical built-up roof. When application is re-covering an existing roof, weight is an important consideration. Most ponding water problems are a result of extra weight. Elastomeric Both the White Plastic acrylic emulsion and the Pol-E-Base are elastomeric which simply means they stretch. The polyester fabric also elongates which produces a combination of a monolithic sheet over your building that moves with expansion and contraction caused by temperature changes. Acrylic and polyester do not dry out and crack like felt and asphalt. Elastomeric properties are also important at the cant strips and parapet walls since these are areas where building movement creates problems.

2 Maintenance of the Pol-E-Base System When a roof leaks, the first thing you want to know is where. The fact that it is leaking on your desk does not mean the leak is directly above you. If you have gravel on the roof it is difficult to identify problem areas. The Specification Chemicals Pol-E-Base Built-Up System provides a smooth surface and is an economical roof system that is easily maintained for many years. Maintenance includes inspecting the roof at least once a year for damage or defects from weather related expansion and contraction. Most problems are repaired with a small quantity of #1300 White Plastic and a paint brush. At the end of 5 to 8 years, depending on climate and structure, you can renew the application by cleaning and recoating the surface with #1300 or 1300T Reflective White. No additional fabric is necessary, just clean, prime with #600 if chalky, and recoat. This option will extend the life of the roof through many cycles since the added weight is minimal. Waterproofing Many times when water is coming into a building it is not the "Roof" that is leaking. Side walls, parapet surfaces and brick chimneys may be allowing water to come through mortar joints or cracks. The flexibility of the polyester and the waterproofing qualities of the liquid acrylic system are the best solutions to these problems. Fully Adhered The Pol-E-Base Built-up Roofing System is a fully adhered application. There are no screws to loosen and penetrate the surface. The polyester reinforcement fabric is saturated by the acrylic at the seams, forming a continuous membrane, even at roof jacks, skylights and other roof penetrations. There is no need to put tons of gravel on the roof to hold the surface down. On steep slope applications it may be necessary to spot nail the top edge of the membrane. Energy Saving The white finish of the system provides a reflective surface that will save you money. All sorts of tests have been made by labs about percentages of reflective insulation showing that a white surface is better than any other. We know from our customers that the air conditioning costs will be less, not just in electricity but also the maintenance and life of the unit. The white surface also keeps the roof membrane cooler which slows down its weathering process.

3 Components of the Pol-E-Base System #460 Pol-E-Base is a self-adhering roof membrane with removable paper on one side and Pol-E-Force (polyester reinforced fabric) on the top surface. It is an excellent base for acrylic coatings and Recycled Rubber Roofing. #460 Pol-E-Base is applied centered over the cant strips from the field area of the roof and up the parapet walls. Pol-E-Base is available in 4", 6", 12" and 36" widths, so it can be used for patching problem areas, valleys, or the entire roof. #600 Fabric Saturant is an acrylic designed as a saturant and adhesive for the Pol-E-Force fabrics. #600 Saturant/Primer is a light green translucent liquid acrylic. Use to saturate and adhere polyester roof reinforcing fabrics and condition chalky surfaces of weathered acrylic or asphalt coatings. #600 Fabric Saturant is applied at the rate of 80 square foot per gallon when used to saturate roofing fabrics and 100 square foot per gallon when used as a primer for chalky surfaces. For application to parapet wall, coat the wall, allow to cure until tacky, adhere fabric over wall and saturate fabric with #600. #100 Vap-R-Lok is an acrylic liquid emulsion used as a primer, stain block and saturant to embed and saturate roof reinforcing fabrics. It cures to a tough, flexible membrane which prevents stain penetration bleeding and water migration. #100 Vap-R-Lok is applied at the rate of 80 square foot per gallon when used to saturate the roofing fabrics. #1300 Grey Plastic is a liquid acrylic emulsion that cures to a grey tough, flexible waterproof membrane. #1300 is an elastomeric product with exceptionally high solids content. #1300 is UL listed and a time tested product since #1300 Plastic is applied to the entire surface at the rate of 100 square feet per gallon. #1300T White Plastic is bright white, as compared to grey #1300. Use as the top coat on the roofing applications when a more reflective surface is desired. #1300T White Plastic is applied over the #1300 as a finish coat at the rate of 100 square feet per gallon. All of Specification Chemicals coatings are time tested and user friendly. Tools and equipment may be cleaned with water immediately after use. Temperature and humidity do effect the curing time so be cautious and do not apply any of the coatings if the temperature is less than 50 F or if it will fall below 40 F within 24 hours. Do not apply if it will rain within 24 hours.

4 Basic Application Procedures Preparation Surface must be smooth, clean and free from any contaminants that may affect adhesion. Substrate for self adhering POL-E-BASE must be secured to roof. Tighten all screws on metal buildings before application. Roll out #460 POL-E-BASE to primed surface, starting at low point of roof. Self Sealing Seams The selvage side seams and the end laps are covered with 4" wide POL-E-FORCE adhered and coated with #600 Fabric Saturant or #100 Vap-R-Lok. Flashing POL-E-FORCE should also be used to mummy wrap roof vents adhered with #600 Fabric Saturant or #100 Vap-R-Lok and coated with #1300 White Plastic. Equipment No special equipment is needed to apply the self-adhering POL-E-BASE. Press lap seams with heavy roller. Roller, brush, and airless spray equipment used to apply the acrylic emulsions may be cleaned with water.

5 Temperature POL-E-BASE may be applied at a minimum of 40ºF White Plastic coatings may be applied at 50ºF and rising with the limitation of temperatures not falling below 40 F within 24 hours. Benefits of POL-E-BASE Metal Building System POL-E-BASE may be applied directly to clean galvanized metal on aluminum buildings. Most applications require the POL-E-BASE to be applied to the seams and end laps only. The POL-E- BASE has the polyester fabric POL-E-FORCE exposed on the top side. This allows the WHITE PLASTIC acrylic coating to saturate the fabric and insure adhesion. The self-adhered products are cold applied and require no special installation tools. The fully adhered system requires no mechanical fasteners or metal flashings. If the existing metal surface is not already white, coating the entire roof with #1300T is recommended to provide reflective insulation and lower surface temperature that reduces the expansion and contraction of the metal. The POL-E-BASE membrane assures that you covered the seam with a consistent product thickness. The materials are time tested since 1975, they are UV stable, cold applied, resistant to airborne chemicals, and require no special equipment for application. Description and Guide #465 Screw Caps are 2 inch round die cut pieces of Pol-E-Base to be used as a seal over screws or nails that secure metal roof and side wall panels. #465 Screw Caps are applied over roof fasteners that have been tightened. Remove the paper backing and center the Screw Cap over the fastener and form tightly around the fastener with the thumb and forefinger. Screw Caps must be coated with an elastomeric coating for UV protection. #100 Vap-R-Lok is a liquid acrylic emulsion. It cures to a tough, flexible membrane which prevents stain penetration, asphalt bleed and water migration. It is an excellent saturant for Pol-E-Scrim or Pol-E-Force and the recommended primer/saturant for the Recycled Rubber Roof system. Allow 24 hours to cure. #100 Vap-R-Lok is applied at 80 square feet per gallon for sealing asphalt bleed and stain penetration. #100 Vap-R-Lok is applied at a rate of 50 square feet per gallon to adhere Pol-E-Scrim on OSB, plywood, concrete and smooth asphalt surfaces. #100 Vap-R-Lok is applied at a rate of 40 square feet per gallon to adhere Pol-E-Force to granulated rolled roofing and other rough surfaces.

6 #5511 Pol-E-Scrim is a 5x5 strands-per-inch polyester scrim with a thin layer of spun bonded polyester bonded to the top side. The woven strands of the scrim give very high tensile strength to the fabric. This is the specified fabric for the Recycled Rubber Roof system. #5511 Pol-E-Scrim is applied over the entire field area of the roof. Start at the low (eve) side and shingle lap 2 to 3 inches. Apply fabric over wet #100 Vap-R-Lok and smooth the fabric with a long-handle paint roller. Apply only over smooth, even roof surfaces. Do not allow fabric to bridge over voids. 36 x 100 roll yields 275 square feet, 36 x 360 yields 1000 square feet. Smaller size rolls can be used for patching. #720 Recycled Rubber Roofing cures to a light grey. This gives the option of a more reflective surface for warmer climates. The acrylic binders are compatible with cured asphalt, concrete, metal, wood and rolled roofing. Recycled Rubber Roofing is applied with a sponge brush, ½ inch nap roller or airless sprayer. Coat at a rate of 50 square feet per gallon over Vap-R-Lok. Apply at a rate of 33 square feet per gallon over granulated rolled roofing or uneven roof surfaces. Do not apply at a rate less than 33 square feet per gallon. Apply two coats with not less than 48 hours of curing time after first coat. The parapet wall above the Pol-E-Base may be coated with RRR after priming with #100 Vap-R-Lok. As an option Recycled Rubber Roofing may be coated with reflective white or gray elastomeric roof coatings, immediately after curing. #600 Saturant/Primer is a light green translucent liquid acrylic. Use to saturate and adhere polyester roof reinforcing and condition chalky surfaces of weathered acrylic or asphalt. Allow 8 hours to cure. #600 Saturant/Primer is applied at a rate of 50 square feet per gallon when adhering polyester fabrics to plywood, OSB, granulated rolled roofing or adhering to parapets. #600 Saturant/Primer is applied at a rate of 100 square feet per gallon when conditioning asphalt and weathered acrylic surfaces. #600 Saturant/Primer is applied at a rate of 75 square feet per gallon when adhering polyester fabrics to acrylic and smooth asphalt surfaces. #460 Pol-E-Base is a self-adhering roof membrane with removable paper on one side and polyester reinforcing fabric on the top. It is an excellent base for acrylic coatings and Recycled Rubber Roofing. #460 Pol-E-Base is applied over cant strips primed with #80 Primer, in two 6 strips centered over the joints starting with the field area joint then applying over the parapet joint. Pol-E-Base is also used in valleys and other problem areas. #460 Pol-E-Base is applied centered over the seams on metal roofing. Pol-E-Base must be coated with an elastomeric coating for UV protection. #460 Pol-E-Base is available in 4, 6, 12 and 36. The 36 x67 widths include a selvedge edge to apply on the entire roof surface.

7 #1300T Reflective White Plastic is an elastomeric acrylic reflective white emulsion, formulated to cure to a reflective white, flexible, waterproof membrane. The cured product has excellent tensile, elongation, flexibility and recovery properties. White Plastic products for roofing and waterproofing are time tested since #1300T Reflective White Plastic is applied at the rate of 100 square feet per gallon for each coat. When applied over Pol-E-Base, the first coat is applied at a rate of 80 square feet per gallon. Application is with a nylon paint brush, a paint roller or with a commercial heavy duty airless sprayer. Two coats are recommended. Do not thin this product. #1300 Grey White Plastic is an elastomeric acrylic grey emulsion, formulated to cure to a grey color that blends with weathered galvanized metal roofing that forms a flexible waterproof membrane. The cured product has excellent tensile, elongation, flexibility and recovery properties. White Plastic products for roofing and waterproofing are time tested since #1300 Grey White Plastic is applied at the rate of 100 square feet per gallon for each coat. When applied over Pol-E-Base, the first coat is applied at a rate of 80 square feet per gallon. Application is with a nylon paint brush, a paint roller or with a commercial heavy duty airless sprayer. Two coats are recommended. Do not thin this product.