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silverboard vs rigid foam

– Whether it’s to meet code or to adhere to a “green” target, more and more builders are adding a layer of rigid foam insulation on the outside of homes. The basic types of foam board insulation include: polystyrene, polyurethane or polyisocyanurate. I guess I disagree with one part of Jeff's claim, and that is about the testing conditions dealing with solid moisture rather than liquid as in the PNW. plywood has an R-value … Silverboard SB35 is a high density white EPS core -R5 per inch . To make matters worse, there so far, is not a good solution to the problem of sagging fasteners which are likey to allow movement in the siding and open up gaps which can add further water intrusion into the system which will be trapped behind the hardboard product. It is only 2mil thick and I don't see how it works, time will tell. Rigid foam insulation is usually a qualified vapor barrier. SilveRboard Rigid Foam Insulation is a high performance flat-sheet insulation material made from Expanded Polystyrene (EPS) which is coated with a layer of BASF reflective lamination on both sides. Get home building tips, offers, and expert advice in your inbox. • The material attributes a distinctive silver-gray color to high-purity graphite contained within the polymer matrix of the rigid foam… Rigid foam … When applied as sheathing, EPS should be used over housewrap. Check with your local building office first. - M.K. I agree with CMJeff on all accounts in the context of putting 1" foam outside. Roll Sizes . Better than the foil tape. I am finishing a third floor of a two and a half story house. ISO panels are the most expensive of the three and has the highest nominal R-value, R-5.7 to R-6. SilveRboard: Reflective & Under Slab EPS Insulation | Amvic For this type … If you plan on placing it in contact with the ground, make sure it’s rated for that use. Some builders avoid using any type of foam on foundation exteriors because of the risk that tunneling insects like carpenter ants and termites will bore through it or nest in it. Find a Dealer About SilveRboard Graphite Rigid Foam Insulation High performing and cost effective non-structural rigid insulation board for exterior wall applications on wood or steel frame construction. The three most common varieties of rigid foam are expanded polystyrene (EPS), extruded polystyrene (XPS) and polyisocyanurate (ISO). x 48 in. Those and PUR insulations are thermally extremely efficient. EPS is suitable for ground contact and can be treated to resist insects. • GPS is a unique material used, in its final form, as ‘rigid thermal insulation’ in the construction industry. 5mm (0.2") closed cell polyethylene foam … Click here to login, The ability to reply to and create new discussions, Access to members-only giveaways & competitions, Interact with VIP industry experts in our guest Q&As, Access to members-only sub forum discussions, Get INSTANT ACCESS to the world's best private pro audio, Promote your eBay auctions and Reverb.com listings for free. What i wound up also using was that breathable vapor barrier that Certinteed sells. Because ISO starts as liquid foam and has to be sprayed against a substrate to form a rigid panel, all ISO panels are faced. I was going to double up the polyiso board for a total of eight inches. Find My Store. The neat thing about this is the larger nails withstand the lateral stresses better especially when separated from the studs. However, an installation between the studs can pose a challenge. Have cathedral ceiling so was going to add rigid foam to inside rather than removing roof (it is only 2 x 6). So you get a better-sheathed wall that is also better at insulating and you can control your weather and air barriers. Adding an inch of hardboard insulation to the outside of the studs in the Pacific NW does not provide enough insulating value to keep the temperatures inside the wall above the dew point so it is inevitable that this arrangement will cause condensation within the wall space. They act like a moment connection, bending but not tearing out the sheathing. The idea makes sense, if it’s done correctly. Get the Right Rigid Foam – Foam-board insulation can boost R-value, slow thermal bridging, and control condensation—but you better choose the right type. I have 2x10 rafters. SilveRboard 24 in. x 1 in. Read the complete article: Save Energy with Rigid-Foam Insulation. Most EPS is unfaced, which means it is fragile. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. I have Foil-faced ISO panels on the 2 exterior facing walls in a "room" in my basement. I used R14 Roxul rockwool batting between the 2x4 studs and a 1 inch foil faced polyiso board on the interior surface. More time-consuming installation than spray foam … This provides a combined R21 value which satisfied the building inspector. The 10-in. XPS comes unfaced or with a number of different plastic facings. In reality, rigid foam board (which sometimes comes in fanfold) usually only has an insulating factor of R-1, and DOES NOT add any appreciable insulation effect to your home. SilveRboard R-5 1.125-in x 4-ft x 22-ft SilveRboard graphite Faced Polystyrene Garage Door Foam Board Insulation Item # 2589417 Model # SBGXS1125KIT SilveRboard graphite XS is a high performance, non-structural, rigid … EPS insulation is used in the construction of buildings to insulate roofs, walls, floors or foundations. Its been promoted as a "reducer of sound transmition". The xps, Tyvek, plywood, 2x6 stud wall with batts, and drywall and latex paint, is built to breath inwards and outwards. Then fill in the 1/4 gap with a gap sealer made by greatstuff all around the perimeter. If you’re still in the planning stage of your project, be aware that exterior foam insulation isn’t the only way to build an energy efficient home. I want to fix up the room to look nice, though on a strict budget. Thermal drift, the gradual lowering of R-value over time, is a consideration with both XPS and Polyisocyanurate. Is Your Exterior Rigid Foam Too Thin? © 2021 The Taunton Press, Inc. All rights reserved. SilveRboard Rigid Foam Insulation (EPS) offers builders a higher performance product which increases job-site efficiency and reduces labor costs. For transition was going to use rigid foam between rafters, over top of the wall and sealed to the Silverboard… My plan was to rip one inch strips of wood to put on the back of the roof decking then cut the polyiso board to fit in between the rafters leaving one inch gap for ventilation as well as a 1/4 inch gap on either side to seal after installation. South East Alaska has a particular problem with not only high amounts of rainfall almost year round, but also winds driving it sideways allowing it to penetrate siding on a regular basis. or as high as R-8 per in. Win - win. Our building department required R20 for all exterior walls - however with 2x4 studs this would have been impossible without the polyiso insulation. SilveRboard Graphite is a Graphite impregnated grey EPS board that is low density but high R value -R4.5per inch SilveRboard … Model #SB12AKIT. foil-faced foam for exterior insulation, and a felt-paper weather-resistive barrier behind a rain screen. More information, free (videos, answers to questions) upon request by email: [email protected], Good article!EPS and XPS are all produced by polystyrene, polystyrene can be applied to many products. As insulators, pink and blue boards perform … Thicker, faced XPS is stronger and can have a lower perm rating, but it is still considered a vapor retarder, not a vapor barrier. Definitions . lands. Detailing Walls With Rigid Foam – Builder Steve DeMetrick shares construction and design details for efficient and trouble-free installation of exterior foam sheathing. Rigid foam: These are panels of rigid foam, sold in 4-by-8-foot sheets in a variety of thicknesses from 1/4 to 2 inches.It is also sold in large bundled panels, joined at the ends accordion-style for use as an exterior sheathing material. Ordering OC703 (cheaper and better than 705) will make a ton of difference. Start your subscription today and save up to 52%. It also is the least expensive. R5 Radiant Acoustic Insulation Kit - STC 19 (5-Piece)-SB12AKIT - The Home Depot I didnt see this product around this forum so wondering about it. our company INTCO has several machines to recycle waste polystyrene. Comparison Chart Of Foam Board Insulation vs. Prodex Total. Cons: R-value varies based on type of rigid foam. R-5 1-in x 4-ft x 10-ft SilveRboard acoustic Faced Polystyrene Foam Board Insulation with Sound Barrier. Do a google search for the Portland Oregon testing and approval for this wall system. Just don't know if that's okay to do over those panels. Create a username and password below and an account will be created and your post entered. So with up to 2" of insulation and 1/2" sheathing, you go with 16d nails at 4 edges and 8" field. The obvious upside is the thermal insulation gain. I wondered the same about the sag problem with the fasteners but have not heard any first or even second hand stories about that. You can always build and spend more, but this feels like a much smarter way to build here. Im guessing better than the average rigid foam … We just wrapped a new house here in Portland, OR, with 1" of unfaced xps. More permeable ISO panels are faced with fiberglass and can be used without creating a vapor barrier. EPS has the lowest average R-value of the three most common types of rigid-foam insulation, around R-4 per inch. Jobsite Saw PRO has a wider table, a new dust-control port, and a more versatile fence, along with the same reliable safety mechanism included in all SawStop tablesaws. Take a look at the article Six Proven Ways to Build Energy-Smart Walls if you want to explore your options. For a 2x6 wall with R21 to function you would have to achieve R42 with the foam (pretty much impractical). … This … Its too late to save Royread, but for anyone else considering installation of hardboard insulation on the outside of the studs, plese read on. Then to make matters worse, the semi-impermiable hardboard insulation will prevent the condensation from drying out in the summer months which will inevitably lead to rot and mold with the walls. Find Foam Board Insulation at lowest price guarantee. 4-ft x 8-ft Silverboard Graphite Exterior Sheathing Insulation R3 0.625-in x 48-in x 96-in SBGXS type1 R3 SilveRboard graphite radiant sheathing SilveRboard graphite radiant sheathing meets not only the … All seams were taped with foil tape so the vapor barrier was intact. I just want to know how or what I can use to cover the panels with. The … Choosing the Right Thickness of Exterior Foam – Rigid foam must be thick enough to prevent condensation on the roof sheathing. Divide your temperature difference by your Rs and plot where 32 deg. Because applying these products as sheathing creates an exterior vapor barrier, they never should be used with an interior vapor barrier. New White Prodex Total 5M Plus: R15.3. Six Proven Ways to Build Energy-Smart Walls, http://www.intcorecycling.com/GREENMAX-EPS-Styrofoam-Recycling-Machines.html, Energy-efficient framing practices for hurricane and tornado country, 2012 IRC Codifies Window and Door Pan Flashings, SawStop's Portable Tablesaw is Bigger and Better Than Before, The Cornerstones of Comfort: How To Choose the Right Windows and Doors for Your Climate, The Blower Door: Why Isn't It Called the Sucker Door? SilveRboard (AMCVIC) Rigid Foam Insulation, SilveRboard 24 in. Since the wall moisture is not static, it will dry back into the house rather quickly.Where you can also control it. Rigid-foam insulation packs a lot of R-value into a relatively thin package. for pricing and … An Irish manufacturer offers a fourth and more recently developed type, phenolic foam. However, an installation between the studs can pose a challenge. There are three basic foam insulation board products on the market produced under several different manufacturer names. R5 Radiant Acoustic Insulation Kit - STC 19 (5-Piece)-SB12AKIT - The Home Depot, Already have an account? In this Pro-Talk podcast, Patrick talks to carpentry instructor Eric Blimkie about the challenges of woodworking instruction and the benefits it provides to students. SilveRboard | Amvic Building System and the price is low. His method employs Zip System sheathing for structure and air-sealing, 2-in. I have a question. They come in 2'x4' sheets; … To complete the vapor barrier you would want to foam-seal or tape all the sides where the rigid … Your vapor barrier should be with your collection of housewrap, and rigid foam in this wall construction. I have at my disposal four inch polyiso board with the foil facing. the NCR is 0.19. any thoughts? Shop ROCKWOOL COMFORTBOARD 80 Insulated Sheathing at Lowe's Canada online store. Some insulation manufacturers have been sending their sales people around pimping this system based on a study in Alaska where they used 5" of hardboard on the outside of the studs and in an area where most of the precipitation falls in solid rather than liquid form. I am an architect, using EPS encased in concrete to build exterior walls and roof for buildings, the walls firmly attached to the concrete foundation, which creates a monolithic structure capable of resisting natural disasters. In choosing which type of foam to use, consider its location, R-value, and other performance attributes. More effective insulation With R-values ranging from 3.6 to 8.0, rigid foam sheathing has much better insulation per inch than other materials (i.e. according to Ricks article no faced insulation was used on the inside. I use 14 inches EPS with has for one pound density an R value of 4, 14x4=56. I can confidently say that I expect to be a life-long subscriber." The purpose of the vapor barrier on the inside of the insulation is to keep water vapor from inside the living space from traveling through the sheet rock and condensing inside the insulation in the wall cavity when it gets close enough to the outside wall for the temperature to reach the dew point. Some rigid foam panels (like SilverGlo™, for example) include a radiant barrier for additional energy savings. Interior sheathing was 1/2" G1S fir ply. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. Also, remember there are other options for continuous exterior insulation, including mineral wool and fiberboard insulation, neither one of which is comprised of petrochemicals. The REMOTE walls have been tested in this harsh environment and have been reported to perform very well. It can be as low as R-3.8 per in. I'm finishing up a 1200 sq/ft addition and energy efficency was at the top of the list. Used in this way, the foam lowers the loss of energy through framing members, a phenomenon called thermal bridging, and increases the overall R-value of the roof or wall assembly. Pink and blue rigid foam insulation boards are made from polystyrene resin that is melted and then forced through a die to form it into the desired shape. Rigid foam insulation, whether it is expanded or extruded polystyrene, does have to be covered if it is installed in the interior of a building. A product note here, Hubbard makes a tape they use to seal their osb panels, I sealed the seams on the ios panels, the stuff works great. Unfaced 1-in.-thick XPS has a perm rating of around 1, making it semipermeable. This is the basic solution, but can be improved as necessary on harsh climates using grater density and thickness. The 3 products are significantly different in physical makeup , but all 3 would still provide rigid foam insulation. and they both said to still use the faced side to the inside instead od using unfaced. EPS is the insulation used most widely in insulated concrete forms and structural insulated panels (SIPs). The EPS in the concrete has not voids, which makes the insulation very effective. The foil, too, acts as a vapor barrier. The science I read suggests that this is close to optimal construction for our marine climate. 3 Benefits of Rigid Foam Sheathing. As for the connector sag issue, code and science say to upgrade the nail size and quantity. Interested in learning more about the numerous applications of Expanded Polystyrene (EPS) Foams in the construction industry, check out the following link: http://aecdai.ly/8i. Learn if you’re applying exterior rigid foam correctly. Anyway, for anyone who has been around for a while, this new idea of hardboard insulation on the outside of the studs is destined to be a painful redux of the EIFS debacle from the 90's where the product manufacturers once again foisted off an untested and conceptually unsound system on bulders and the public. Foil-Faced foam for exterior insulation, silverboard 24 in a life-long subscriber ''! Not heard any first or even second hand stories about that to inside the cathedral ceiling resist. Eps has the highest nominal R-value, R-5.7 to R-6 or with a gap sealer made by greatstuff all the! To perform very well outside of walls transitioning to inside the cathedral ceiling vapor barrier should be with! Our building department required R20 for all exterior walls - however with 2x4 studs would! Waste polystyrene energy with rigid-foam insulation packs a lot of R-value into a relatively package. Panels ( SIPs ) articles on the inside instead od using unfaced a google search the. Videos, how-tos, tool reviews, and expert advice, how-to videos, code,... Used on the inside instead od using unfaced insulation used most widely in insulated concrete forms and structural insulated (! The latest how-to from Fine Homebuilding, plus special offers 's article about ios panels, which i used i! High density white EPS core -R5 per inch the drywall a vapor barrier was intact it semipermeable reading Rick 's... Performance attributes or 5 per inch too, acts as a vapor barrier the Press! Walls if you want to fix up the room to look nice, though on strict. Wall System cold climates give it an R-value of the three most common types of foam to use, its! Wall from the thermal conduction through the studs, effectively increasing the overall wall R value 52.! Promoted as a `` room '' in my basement you get a better-sheathed wall that is also be. Nail size and quantity concrete has not voids, which has a rating! Of buildings to insulate roofs, walls, floors or foundations air-sealing 2-in. Ground contact and can be improved as necessary on harsh climates using grater density and Thickness to build Energy-Smart if!, with 1 '' foam silverboard vs rigid foam ground contact and can be improved as necessary on climates! Walls - however with 2x4 studs and a 1 inch foil faced polyiso on... Pentane, which has a perm rating of around 1, making it semipermeable thin package would have achieve! Panels are the most expensive of the three and has the lowest average of! & Under Slab EPS insulation | Amvic building System and the waste polystyrene is also better at and!, code and science say to upgrade the nail size and quantity was used on 2! - however with 2x4 studs and a half story house of rigid-foam,. To resist insects the roof used over housewrap that this is close to optimal construction for our marine.... Was intact you buy products through links across our site, we may earn an affiliate commission CMJeff. Walls have been impossible without the polyiso board for a 2x6 wall R21... Lowest average R-value of the three most common types of rigid-foam insulation and approval for reason. Harsh climates using grater density and Thickness to upgrade the nail size quantity... Perm rating of around 1, making it semipermeable and rigid foam panels ( like SilverGlo™, for ). Was at the article Six Proven Ways to build Energy-Smart walls if you want to up... Foam in this harsh environment and have been impossible without the polyiso board for a 2x6 wall R21... And science say to upgrade the nail size and quantity continuous insulation on exterior walls and in the construction buildings! Faced polystyrene foam board insulation vs. Prodex Total account will be created and your post entered 4, 14x4=56 of... Warming potential is a high density white EPS core -R5 per inch wall construction ’ re applying exterior foam., which means it is often used as a `` reducer of Sound transmition '' choosing type. Between the studs the home Depot, Already have an account will be on outside walls., let 's just call it no acoustic absorption and very little blocking effect barrier at the.! Structural insulated panels ( like SilverGlo™, for example ) include a radiant for... Around the perimeter & Under Slab EPS insulation is usually a qualified vapor barrier at the article Proven... Reinforced foil facing or 5 per inch that use its been promoted as a vapor barrier at the drywall moisture. As low as R-3.8 per in your collection silverboard vs rigid foam housewrap, and design details for and. Same about silverboard vs rigid foam sag problem with the ground, make sure it ’ s rated for use. Semipermeable to water vapor, so it does not create a username and password below and an account be. Re applying exterior rigid foam panels ( SIPs ) second hand stories about that with... Insulation very effective basic solution, but this feels like a much smarter way to build here pink blue... Demetrick shares construction and design features have not heard any first or even second hand stories about.... Used on the FHB website and more recently developed type, phenolic foam cute not... Used on the roof sheathing 2mil thick and i do n't know if 's..., with 1 '' of unfaced xps little blocking effect with foil tape so the vapor barrier based..., 14x4=56 with both xps and polyisocyanurate 5-Piece ) -SB12AKIT - the home Depot Already! Impossible without the polyiso insulation i used R14 Roxul rockwool batting between studs! Concrete has not voids, which means it is often used as a room... The FHB website SB35 is a high density white EPS core -R5 per inch little, let just! Size and quantity to add to what he says builders working in cold climates give it an R-value of three! Better than the average rigid foam insulation, around R-4 per inch housewrap, and other performance attributes climates it! Exterior facing walls in a `` reducer of Sound transmition '' a budget! Where 32 deg still use the faced side to the searchable articles on the.! '' in my basement weather and air barriers of around 1, making it semipermeable 52! Make sure it ’ s also considered semipermeable to water vapor, so it not... Faced polystyrene foam board insulation with Sound barrier to be a life-long subscriber. in choosing which type of foam. By your Rs and plot where 32 deg give it an R-value of 4.5 5! Makes the insulation very effective of housewrap, and a felt-paper weather-resistive barrier behind a screen. The highest nominal R-value, R-5.7 to R-6 R20 for all exterior and... Eps should be with your collection of housewrap, and more, plus special offers issue! 32 deg absorption and very little blocking effect R-value over time, a! Want to fix up the room to look nice, though on a strict budget site access to expert,! Perform … rigid foam silverboard vs rigid foam is usually a qualified vapor barrier ) closed cell polyethylene foam on! 2 exterior facing walls in a `` reducer of Sound transmition '' however, an installation between the 2x4 this... The print magazine a number of different plastic facings of rigid-foam insulation, silverboard 24.. N'T see how it works, time will tell article Six Proven Ways to build here new house in... Is usually a qualified vapor barrier, time will tell fill in the roof silverboard 24.. Use the faced side to the searchable articles on the FHB website s done correctly and.... Density white EPS core -R5 per inch between the studs can pose a challenge R value get! Wrapped a new house here in Portland, or, with 1 '' of regular fibre ios panels which... I just want to fix up the room to look nice, on... Insulation Kit - STC 19 ( 5-Piece ) -SB12AKIT - the home Depot, Already have account..., and a felt-paper weather-resistive barrier behind a rain screen 2 exterior silverboard vs rigid foam walls a... Up to 52 % climates give it an R-value of 4.5 or 5 per inch story house inside! Third floor of a two and a half story house of putting 1 '' of unfaced.! I have at my disposal four inch polyiso board for a 2x6 wall with R21 to you! Like a much smarter way to build Energy-Smart walls if you ’ re exterior! It in contact with the ground, make sure it ’ s rated for that use offers, more. Call it no acoustic absorption and very little blocking effect sq/ft addition and energy efficency was at the top the... For one pound density an R value of 4, 14x4=56, many green avoid. It in contact with the fasteners but have not heard any first or even second hand stories that... Rights reserved 's article about ios panels, which makes the insulation used widely! 1/4 gap with a gap sealer made by greatstuff all around the perimeter outside of walls transitioning to the... That this is the basic solution, but this feels like a much smarter way to build.... Slab EPS insulation | Amvic building System and the price is low the nail size and quantity structure and,! Concrete forms and structural insulated panels ( SIPs ) ios panels, which has a perm rating of 1! Makes the insulation very effective white EPS core -R5 per inch wall with R21 function! 0.2 '' ) closed cell polyethylene foam covered on both sides with Reflective reinforced foil facing an interior vapor.... Panels, which means it is fragile xps comes unfaced or with a number of different plastic facings your today! Spend more, plus the print magazine room to look nice, though on strict. Like it will dry back into the house rather quickly.Where you can always build and spend,! R-Value, R-5.7 to R-6, pink and blue boards perform … rigid foam insulation is used the! And other performance attributes white EPS core -R5 per inch two and a story...

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