It is composed of a uniform closedcell polyisocyanurate foam bonded on each side to a foil facerone side has a reflective foil facer and the other a nonreflective foil facer. Ap foilfaced sheathing jm rigid foam board 20 year limited warranty johns manville warrants that the thermal insulation r value of its polyisocyanurate foa m insulation products will not at any time after the first 1st year after. The heating season is obviously longer than the cooling season. Going with r3 foilfaced polyiso would be the riskiest from a moisturetrap point of view, and with only a modest performance upside over eps. Foil faced insulation cost guide 2020 foil faced insulation. Allpurpose foil faced polyiso foam sheathing designed for easy installation behind brick, stucco, stone, concrete, or terra cotta veneer cladding, ap foil faced insulation sheathing board provides heat, moisture, and air control to protect the exterior wall assembly. Rigid foam insulation for existing exterior walls building america. Thoroughly tape all seams in the insulation, using a manufacturerrecommended tape.
Even more permeable types of insulation, such as expanded polystyrene, are vapor barriers when the installation is thick enough. Polyiso insulation for home renovation green building solutions. The questionandanswer article about the indoor use of foil faced insulating foam found just board below paraphrases, quotesfrom. The standard insulation sheathing panel sizes are 2 by 8 feet, 4 by 8 feet, and 4 by 9 feet, the foam board thicknesses range from 38 inch to 4 14 inches. Weyerhaeuser radiant barrier sheathing rbs comes prefabricated with a reflective foil layer that reflects up to 97% of the suns radiant energy, minimizing heat transfer through the roof and insulation to interior living spaces. Free, online foil faced insulation cost guide breaks down fair prices in your area. Check with the manufacturer before using any adhesive because solvents found in some adhesives eat foam. Prodex 48 inch, 10 m, fast action, 72 inch, 24 inch or 16 inch. For faced rigid insulation boards such as foil faced or glass fiber faced polyisocyanurate, the permeance of the facing is often much lower than the permeance of the polyisocyanurate and will. If vinyl siding is to be installed over ap foil faced sheathing, install foam boards with the white nonreflective side toward the vinyl siding. Foam sheathing is fastened to the structural sheathing or framing with broadhead nails, wide plastic washers, andor adhesive caulk that is compatible with the foam.
Using insulation board on top of osb and under siding. Follow the steps below to explore how to install your board insulation. This older article by our former faculty member remains available on our site for archival purposes. Prodex eliminates the moisture and ice dams from forming on roof and walls.
One side has a reflective foil face typically installed toward the warm air surface to reflect. Indoor use of foil faced polyisocyanurate foam insulation. Secure ap foil faced boards using recommended 2inch capped fasteners with no. Rtech fanfold eps foam insulation, 12 inch whitefoil faced, 2 sq, bag rtech12 rtech fanfold eps foam insulation with foil, 12 thick, 1. Ap foil provides exceptional heat, moisture and air control and, when installed. For these products, the permeance will not change with increasing thickness. As an added plus, weyerhaeuser rbs can even help keep nonairconditioned, uninsulated rooms like garages. Jun 23, 2010 rigid foam board, especially foil faced polyisocyanurate, creates a vaporimpermeable barrier, so the wall would have limited drying potential. Zero energy ready home program, energy star certified homes, and. Feb 16, 2012 doug bibee, residential technical specialist for dow building materials, explains the benefits of using insulated foam sheathing to increase energy efficiency and prevent moisture and mold problems.
If playback doesnt begin shortly, try restarting your device. How to install styrofoam insulation on a homes exterior. For faced rigid insulation boards such as foil faced or glass fiber faced polyisocyanurate, the permeance of the facing is often much lower than the permeance of the polyisocyanurate and will govern the overall permeability of the sheathing board. Ap foil provides exceptional heat, moisture and air control and, when installed correctly, eliminates all major thermal bridges that cause heat loss. It features a reflective foil facer on one side and a nonreflective facer on the other. We are a proudly australian owned manufacturer and distributor of reflective foil insulation panels and fireresistant insulated board. Warmer exterior walls, roofs and floors, including basement foundation walls and floors, can add both comfort and energy efficiency. The right insulation can save on energy and heating and cooling bills. Johns manville allpurpose foilfaced polyiso foam sheathing.
It is constructed from closed cell polyisocyanurate foam core bonded on each side to aluminum foil facers during the manufacturing process. The effect that different foil breather membranes can have be seen in the kingspan kooltherm k112 framing board brochure. Can exterior foam insulation cause mold and moisture problems. Insulating on the outside building and construction technology. Ap foilfaced foam sheathing provides exceptional heat, moisture and air control to protect your buildings exterior wall assembly. Enerfoil foil faced rigid insulation polyisocyanurate. It will seriously reduce your homes energy consumption. Going with r3 foil faced polyiso would be the riskiest from a moisturetrap point of view, and with only a modest performance upside over eps. An integral part of our range is the original foilboard panel, an freps. Doug bibee, residential technical specialist for dow building materials, explains the benefits of using insulated foam sheathing to increase energy efficiency and prevent moisture and. Residential installation instructions abovegrade exterior walls. If vinyl siding is to be installed over ap foilfaced sheathing, install foam boards with the white nonreflective side toward the vinyl siding.
Use nonfoilfaced panels beneath aluminum, vinyl, and woodbased sidings. Polyiso foam has a high rvalue per inch, which helps reduce energy costs for the homeowner over the life of the buildingan especially important factor considering the expected sustained rise in fuel costs. Foilfaced foam sheathing board is rigid polyisocyanurate foam sheathing. Radiant heating under a wood floor click for installation instructions use. Ap foilfaced polyisocyanurate foam sheathing visit our website at. Jm ap foilfaced polyiso foam sheathing insulation supplies. Foam board insulation is great for the garage garage triage. Ap foilfaced polyisocyanurate foam sheathing data sheet. Is foil faced polyisocyanurate foam insulation hazardous when used indoors. Our comprehensive line of highquality, polyisobased products continues to deliver maximum rvalues. Rtech is a cost effective way to increase your project energy efficiency. Residential installation instructions abovegrade exterior. This program explains how engineering extensions of tested assemblies are allowed.
Ap foilfaced polyisocyanurate foam sheathing interior installation when used as an underlayment, ap sheathing is easily attached to the interior stud surface, and should always be covered with a minimum 12 mm gypsum board. A radiant barrier reduces heat transfer by radiation and has two excellent applications in homes. Right this foilfaced foam sheathing has taped seams and proper flashing. Since 1978, rmax has been an innovator in building insulation solutions. Using foil faced insulation is one option in choosing the insulation for your house. Enerfoil is designed to be a nonstructural, nonpermeable sheathing in cavity wall. Begin installation after structural steel, exterior framing, and bracing and structural sheathing is complete. Weyerhaeuser radiant barrier sheathing rbs comes prefabricated with a reflective foil layer that reflects up to 97% of the suns radiant energy, minimizing heat transfer through the roof and. The standard insulation sheathing panel sizes are 2 by 8 feet, 4 by 8 feet, and 4 by 9 feet, the foam board thicknesses range.
Product documents promotions rvalue podcast spf repair services spf tech support quote plus video resource library. Johns manville polyiso foam sheathing insulation boards provide a continuous layer of. Rigid foam board, especially foilfaced polyisocyanurate, creates a vaporimpermeable barrier, so the wall would have limited drying potential. Ap foilfaced sheathing jm rigid foam board 20 year limited warranty johns manville warrants that the thermal insulation r value of its polyisocyanurate foa m insulation products will not at any time.
If you like saving money and helping the environment you should really look into radiant barrier roof decking. Installing continuous insulation metal construction news. The most obvious reason for installing rigid board insulation in your garage is the heating and cooling efficiency gained by using it. Install the sheathing panels vertically to minimize horizontal seams as much as possible. When the heat or cold from outside comes through the sheathing it hits the outside reinforced foil faced prodex and is reflected back upwards through the underside of the sheathing. When using foam insulation, youll need to decide whether you intend to use osb in addition to the rigid foam to serve as the building sheathing or if the rigid foam layer will itself serve as the sheathing, and youll need to determine what will serve as the drainage plane and where this layer will be. Polyiso foam has a high rvalue per inch, which helps reduce energy costs for the homeowner over the life of the buildingan especially important factor considering the expected sustained rise in fuel. Twopart spray foam heats up substantially as it cures, and polystyrenebased rigid foam. Iko enerfoil sheathing wall insulation is a rigid, polyisocyanurate foam insulation board with high thermal properties. Use maximum board lengths to minimize the number of joints. Dow currently is the only polyiso foam insulation board.
Get 2020 foil faced insulation price options and installation cost ranges. Larger panels can be 50 feet long and fold in an accordion style. The foil faced ive used in the past has always been foil both sides or no foil at all. Insulating on the outside building and construction. Correct me if im wrong, but shouldnt the foil facing on polyiso face the interior in climate zone 5 to help retain heat. So, when i walked up to the bubble wrap booth and asked the guy what the rvalue. Twopart spray foam heats up substantially as it cures, and polystyrenebased rigid foam boards i. Lightdensity fiberglass batts with a kraft, foil, or a foil scrim kraft fsk fireresistant vapor retarder facing. The pros and cons of rigid foam sheathing echotape.
Which way should the foil facing on polyiso rigid foam. Foil faced insulation board installs a little differently than your rolled insulation. This process keeps the sheathing temperature consistent on both sides. Exterior sheathing faced insulation the home depot. But if you use wood clapboard siding, foam sheathing can cause trouble. Although foam board insulation can be used in almost any part of a home, this material is particularly well suited for a garage space where exposed walls and ceilings need insulation with ease of installation. Foilfaced insulation insulation kingspan great britain. Taped insulating sheathing drainage planes building america. Type 1 means faced with aluminum foil on both major surfaces of the foam core. One solution to heat, cold, condensation and airflow no other insulation protects you from these conditions like prodex total. Rigid foam insulation or foam board insulation provides energy efficiency and moisture resistance. Ap foilfaced polyisocyanurate foam sheathing exterior installation corner bracing is necessary when building with nonstructural sheathing. Polyisocyanurate foam sheathing ap foilfaced continuous. Jm ap foil faced polyiso foam sheathing home services contact credit application msds search fiberglass poly cellulose foam waterproofing.
Installation ap foilfaced foam sheathing is lightweight and can be easily cut with a utility knife or saw. Secure boards with 38 10 mm head diameter galvanized. Radiant barrier roof sheathing has a highly reflective material facing the interior of your attic. Designed for easy installation behind brick, stucco, stone, concrete, or terra cotta veneer cladding, ap foilfaced insulation sheathing board provides heat.
Indoor us of foil faced polyisocyanurate foam insulation. Celotex thermax as illustrated by your first photo above was and is currently as a dow thermax product a foilfaced insulating board comprised chiefly of foam insulation, laminated with aluminum. Polyiso insulation for home renovation green building. The assembly needs to be protected from wetting from both. Polyiso technical resources applied building technology group. Benefits of using insulated foam sheathing youtube. Llc associates program, an affiliate advertising program designed to provide a. Can vinyl siding be installed directly over foilfaced rigid foam.
Interior and exterior walls, ceilings and crawlspaces. These strong, lightweight, rigid foam panels with a film face provide the durability and damage resistance necessary to meet the rigorous demands of site built construction. Celotex thermax as illustrated by your first photo above was and is currently as a dow thermax product a foilfaced insulating board comprised chiefly of foam insulation, laminated with aluminum foil or possibly kraft paper. Insulation reduces heat transfer by conduction through solid materials. Johns manville ap foilfaced polyiso foam sheathing boards are available. Solving heat, cold and condensation with foil insulation. Spray foam insulation is applied as a liquid that expands to nearly 100 times its initial volume, creating a thermal. It is constructed from closed cell polyisocyanurate foam core bonded on each side to. When it comes to installing wood siding over foam be careful. Install foilfaced foam sheathing horizontally preferred over exterior sheathing staggering joints relative to exterior sheathing. Input project size, product quality and labor type to get foil faced insulation material pricing and installation cost estimates. Lightdensity fiberglass batts with a kraft, foil, or a foil scrim. Im wondering what thoughts are on which way the foil face should go in a mostly heating days climate. Building america ba has been advocating the use of rigid foam sheathing insulation for years as a means to improve the homes thermal envelope, by increasing rvalue while minimizing thermal.
How to install styrofoam insulation on a homes exterior youtube. Ap sheathing does not, in and of itself, need a vapor retarder. This alternative to fiberglass is most commonly used in new construction. Continuous insulation installation metal construction news. Concrete floor click for installation instructions use. Using scientific methods, the polyisocyanurate insulation manufacturers. Rtech fanfold eps foam insulation, 38 inch whitefoil. Taped insulating sheathing drainage planes building. The foilfaced bubble wrap sham understanding radiant. Ap foilfaced polyiso foam sheathing provides continuous insulation for maximum efficiency, as well as exceptional moisture, heat and air control. Impermeable foilfaced sheathings like dow tuffr or rmax rmatte plus are good choices.
Use non foil faced panels beneath aluminum, vinyl, and woodbased sidings. I have always installed foam direct to sheathing then wrb with either drain wrap or drainage plain then siding. Polyiso has the highest rvalue per inch of any rigid board insulation. Asbestos appeared in some, probably not all, foam insulating boards made up to the early to mid 1980s. Moisture can get trapped between the siding and the foam, leading to paint failure and causing clapboards to cup and curl. Use a more vaporpermeable insulating sheathing such as eps and unfaced xps on the exterior. Rtech is also available in thicknesses ranging in 18 in. Get free shipping on qualified faced, exterior sheathing, insulation products or buy online pick up in store today in the building materials department. Use extruded polystyrene xps or foilfaced polyisocyanurate insulation following the manufacturers installation instructions. The foilfaced bubble wrap sham understanding radiant barriers.
Foamular extruded polystyrene insulating sheathing is, is ideal for either wood or metal framing construction, and suits a variety of exterior finishes. The questionandanswer article about the indoor use of foil faced insulating foam found just board below paraphrases, quotesfrom, updates, and comments an original article from solar age magazine and written by steven bliss. Thoroughly tape all seams in the insulation, using a manufacturer. Johns manville ap foilfaced polyiso foam sheathing was used in this renovation project on the steelframed exterior wall as a weather resistive and air barrier to prevent water and air leakage behind a. Use a more vapor impermeable sheathing on the exterior of the assembly such as foil faced polyisocyanurate and plastic film faced xps.