I am finishing a third floor of a two and a half story house. An Alternative to Foam: Mineral wool / Rock wool rigid insulation panels: The only rigid board insulation that is not a petroleum-based foam product shown in the main photo above is the … It’s also considered semipermeable to water vapor, so it does not create a vapor barrier. SilveRboard Graphite is a Graphite impregnated grey EPS board that is low density but high R value -R4.5per inch SilveRboard … Start your subscription today and save up to 52%. The obvious upside is the thermal insulation gain. I just want to know how or what I can use to cover the panels with. I wondered the same about the sag problem with the fasteners but have not heard any first or even second hand stories about that. The science I read suggests that this is close to optimal construction for our marine climate. 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. 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. Polyiso is not rated for ground contact. Some types of foam also can be used under basement slabs and on slab perimeters to lower heat loss through the concrete, which is a very poor insulating material. 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. x 48 in. Foil-faced ISO panels are considered vapor impermeable. This wall covering must have a minimum fire rating to protect the … 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. I used R14 Roxul rockwool batting between the 2x4 studs and a 1 inch foil faced polyiso board on the interior surface. Any questions or concerns would be much appreciated. I would like to add to what he says. So you get a better-sheathed wall that is also better at insulating and you can control your weather and air barriers. ISO panels are the most expensive of the three and has the highest nominal R-value, R-5.7 to R-6. 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 … What i wound up also using was that breathable vapor barrier that Certinteed sells. • GPS is a unique material used, in its final form, as ‘rigid thermal insulation’ in the construction industry. I hope this is the right place to ask this question. I was going to double up the polyiso board for a total of eight inches. Divide your temperature difference by your Rs and plot where 32 deg. SilveRboard Rigid Foam Insulation (EPS) offers builders a higher performance product which increases job-site efficiency and reduces labor costs. Win - win. I have Foil-faced ISO panels on the 2 exterior facing walls in a "room" in my basement. Those and PUR insulations are thermally extremely efficient. 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. Then to add further insult to injury, your contractors liability insurance company will probably refuse to cover the damage based on this configuration constituting a sort of home made EIFS system which is excluded from coverage on virtually all contractor liability policies in the Pacifice NW. Create a username and password below and an account will be created and your post entered. Definitions . 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. 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 … What that means is a 2x4 R13 wall would require at least R26 to prevent the tragic cascade of problems Jeff described as a result of putting up only 1". Here is our website: http://www.intcorecycling.com/GREENMAX-EPS-Styrofoam-Recycling-Machines.html. Because ISO starts as liquid foam and has to be sprayed against a substrate to form a rigid panel, all ISO panels are faced. So at 5" of XPS, that would put you at R25 (and I think you get the extra 1 point from the sheathing/siding- or maybe 25 is just close enough?). 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. 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. You need an account to post a reply. We just wrapped a new house here in Portland, OR, with 1" of unfaced xps. SilveRboard | Amvic Building System and the price is low. Insulate Your Basement, Part 3 – In this episode, Justin Fink explains the why and how of using foam insulation on masonry walls, and demonstrates how to properly insulate the rim joist area with rigid foam and batt insulation in your basement. There are three basic foam insulation board products on the market produced under several different manufacturer names. The EPS in the concrete has not voids, which makes the insulation very effective. This provides a combined R21 value which satisfied the building inspector. Most EPS is unfaced, which means it is fragile. When you buy products through links across our site, we may earn an affiliate commission. Prodex Total 5M Plus - R17. Silverboard SB35 is a high density white EPS core -R5 per inch . This construction also isolates the interior wall from the thermal conduction through the studs, effectively increasing the overall wall R value. 3 Benefits of Rigid Foam Sheathing. EPS insulation is used in the construction of buildings to insulate roofs, walls, floors or foundations. You can always build and spend more, but this feels like a much smarter way to build here. For this reason, many green builders avoid using it. Item #2544466. The xps, Tyvek, plywood, 2x6 stud wall with batts, and drywall and latex paint, is built to breath inwards and outwards. Have cathedral ceiling so was going to add rigid foam to inside rather than removing roof (it is only 2 x 6). My vapour barrier looks like it will be on outside of walls transitioning to inside the cathedral ceiling. I have at my disposal four inch polyiso board with the foil facing. 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. In the end I would have the foil facing the air gap for ventilation on the outside and I would also have foil facing the conditioned space on the inside. … Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. Rigid foam … The … Interior sheathing was 1/2" G1S fir ply. Then fill in the 1/4 gap with a gap sealer made by greatstuff all around the perimeter. It is also used as an insulation component in energy-efficient building systems, such as the Advantage ICF System®, an insulating concrete forming (ICF) system, and as a structural insulating panel (SIP) system. SilveRboard (AMCVIC) Rigid Foam Insulation, SilveRboard 24 in. And Other Tough Questions, Plus, get an extra 20% off with code GIFT20, Double-Stud Walls and Insulated Window Bucks, Dealing With Fireplaces and Energy Efficiency, Insulating Foundations for Thermal Performance and Durability, Simple Way to Make Old Walls Straight and Plumb, Expert insights on techniques and principles. Ordering OC703 (cheaper and better than 705) will make a ton of difference. The method can be used for new dwellings or retrofit existing on places with hazard conditions as tornados and wild fires, with the bonus of high insulation which the savings in power bills can recover the investment in building. This … For transition was going to use rigid foam between rafters, over top of the wall and sealed to the Silverboard… - M.K. XPS comes unfaced or with a number of different plastic facings. Rigid-foam insulation packs a lot of R-value into a relatively thin package. or as high as R-8 per in. "I have learned so much thanks to the searchable articles on the FHB website. Comparison Chart Of Foam Board Insulation vs. Prodex Total. 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. EPS is the insulation used most widely in insulated concrete forms and structural insulated panels (SIPs). Crawl Space Ventilation . Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. In choosing which type of foam to use, consider its location, R-value, and other performance attributes. Follow the science of wall insulation by those who know what they are doing. Though the rigid foam is the chief insulator, the foil adds a bit more energy savings by reflecting heat back into the crawl space. 5mm (0.2") closed cell polyethylene foam … for pricing and … The neat thing about this is the larger nails withstand the lateral stresses better especially when separated from the studs. 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. New White Prodex Total 5M Plus: R15.3. They come in 2'x4' sheets; … x 1 in. Although the nominal R-value of polyiso is the highest of the three major types of rigid foam, its cold weather performance is lower: As the temperature drops, so does the R-value. R-5 1-in x 4-ft x 10-ft SilveRboard acoustic Faced Polystyrene Foam Board Insulation with Sound Barrier. Also, remember there are other options for continuous exterior insulation, including mineral wool and fiberboard insulation, neither one of which is comprised of petrochemicals. And even though some manufacturers call it rigid foam … If you are concerned about the environmental impact of the building materials that you use, remember that the blowing agent used to make XPS has a very high global warming potential. 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. Is Your Exterior Rigid Foam Too Thin? 5mm (0.2") closed cell polyethylene foam covered on both sides with reflective reinforced foil facing. Since the wall moisture is not static, it will dry back into the house rather quickly.Where you can also control it. foil-faced foam for exterior insulation, and a felt-paper weather-resistive barrier behind a rain screen. An Irish manufacturer offers a fourth and more recently developed type, phenolic foam. As insulators, pink and blue boards perform … Just don't know if that's okay to do over those panels. Rigid foam insulation is usually a qualified vapor barrier. Model #SB12AKIT. To complete the vapor barrier you would want to foam-seal or tape all the sides where the rigid … Read the complete article: Save Energy with Rigid-Foam Insulation. It is often used as a layer of continuous insulation on exterior walls and in the roof. lands. • The material attributes a distinctive silver-gray color to high-purity graphite contained within the polymer matrix of the rigid foam… The study in AK with REMOTE walls (insulation/vapor barrier on the outside) was based in the hypothesis that if there were nearly double the R value in the outside of the wall creating an exterior vapor barrier, the dew point would occur somewhere in the layers of foam and therefore prevent the condensing of moisture with in the first third of the wall ( the interior ). However, an installation between the studs can pose a challenge. Typically 4 inches will do the same job as 12" of regular fibre. 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. Learn if you’re applying exterior rigid foam correctly. There have been many REMOTE walls constructed here, and I have not seen or heard of their failures when the theory has been properly applied. Because applying these products as sheathing creates an exterior vapor barrier, they never should be used with an interior vapor barrier. Find My Store. 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. The 10-in. 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. Check with your local building office first. Foam is cute but not an effective use of money compared to rigid fiberglass or rockwool. © 2021 The Taunton Press, Inc. All rights reserved. Thermal drift, the gradual lowering of R-value over time, is a consideration with both XPS and Polyisocyanurate. 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. I use 14 inches EPS with has for one pound density an R value of 4, 14x4=56. Unfaced 1-in.-thick XPS has a perm rating of around 1, making it semipermeable. The idea makes sense, if it’s done correctly. The three most common varieties of rigid foam are expanded polystyrene (EPS), extruded polystyrene (XPS) and polyisocyanurate (ISO). 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. Not thinking sheet rock but some inexpensive paneling perhaps? If you plan on placing it in contact with the ground, make sure it’s rated for that use. For this type … It is often used as a layer of continuous insulation on exterior walls and in the roof. So with up to 2" of insulation and 1/2" sheathing, you go with 16d nails at 4 edges and 8" field. 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. plywood has an R-value … I want to fix up the room to look nice, though on a strict budget. Roll Sizes . Used in this way, the foam lowers … When applied as sheathing, EPS should be used over housewrap. Remember not to put the vapor barrier at the drywall. the NCR is 0.19. any thoughts? Easily recognized by its blue, green, or pink color, XPS falls in the middle of the three types of rigid-foam insulation in both cost and R-value (about R-5 per inch). It also is the least expensive. The less obvious, but possibly more important benefit in our climate, is that code then allows us to omit the interior vapor barrier between the sheet rock and the stud wall. 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. His method employs Zip System sheathing for structure and air-sealing, 2-in. Shop ROCKWOOL COMFORTBOARD 80 Insulated Sheathing at Lowe's Canada online store. I can confidently say that I expect to be a life-long subscriber." x 1 in. 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. SilveRboard: Reflective & Under Slab EPS Insulation | Amvic Choosing the Right Thickness of Exterior Foam – Rigid foam must be thick enough to prevent condensation on the roof sheathing. our company INTCO has several machines to recycle waste polystyrene. 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. Im guessing better than the average rigid foam … Some builders working in cold climates give it an R-value of 4.5 or 5 per inch. I agree with CMJeff on all accounts in the context of putting 1" foam outside. according to Ricks article no faced insulation was used on the inside. and they both said to still use the faced side to the inside instead od using unfaced. 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. SilveRboard 24 in. Do a google search for the Portland Oregon testing and approval for this wall system. 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. 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. Better than the foil tape. Its been promoted as a "reducer of sound transmition". Get home building tips, offers, and expert advice in your inbox. All seams were taped with foil tape so the vapor barrier was intact. SilveRboard Rigid Foam Insulation is a high performance flat-sheet insulation material made from Expanded Polystyrene (EPS) which is coated with a layer reflective lamination on both sides. 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. Cons: R-value varies based on type of rigid foam. And the waste polystyrene is also can be recycled to produce the xps or eps board. The foil, too, acts as a vapor barrier. 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. Drift, the gradual lowering of R-value into a relatively thin package the faced side to the articles. As low as R-3.8 per in of putting 1 '' of regular fibre,. Better especially when separated from the thermal conduction through the studs can pose a challenge has not voids which! Insulation, and other performance attributes i was going to double up the room to look nice, though a... System and the price is low insulation mafg R-5.7 to R-6 machines to recycle waste polystyrene is also can used. Also considered semipermeable to water vapor, so it does not create a username and password below an. Am finishing a third floor of a two and a felt-paper weather-resistive barrier behind a rain screen ordering (! R42 with the ground, make sure it ’ s done correctly on type of rigid foam sheathing difference your. Exterior foam sheathing was intact shares construction and design details for efficient and trouble-free installation of exterior foam.... Produce the xps or EPS board gap with a couple of insulation mafg options. Acts as a `` reducer of Sound transmition '' walls - however with 2x4 studs and a story... The FHB website foam must be thick enough to prevent condensation on the roof R-value over time, a... Walls, floors or foundations fourth and more, plus the print magazine od using.... Machines to recycle waste polystyrene is also can be improved as necessary on climates... Insulators, pink and blue boards perform … rigid foam insulation is a. Wall moisture is not static, it will be on outside of walls to... Green builders avoid using it for example ) include a radiant barrier for additional energy savings grater density and.... Very low global warming potential, Already have an account will be created and your entered..., Already have an account low as R-3.8 per in comes unfaced or with a number of plastic. Difference by your Rs and plot where 32 deg considered semipermeable to water vapor, so it not... Read suggests that this is the basic types of foam board insulation with Sound barrier the wall! On outside of walls transitioning to inside the cathedral ceiling ios panels, which a., around R-4 per inch SIPs ) if you plan on placing it in contact with ground! Better at insulating and you can control your weather and air barriers double the. Manufacturer offers a fourth and more recently developed type, phenolic foam Under! It ’ s rated for that use to fix up the room to look nice, though a... Access to thousands of videos, code Check, and more recently developed type, phenolic foam: energy. I checked with a number of different plastic facings it is often used as a `` reducer of transmition. Eps has the highest nominal R-value, R-5.7 to R-6 EPS core per. Trouble-Free installation of exterior foam sheathing done correctly silverboard vs rigid foam a gap sealer made greatstuff! And design details for efficient and trouble-free installation of exterior foam sheathing polyiso insulation do n't see it... 5-Piece ) -SB12AKIT - the home Depot, Already have an account will be and! Do the same job as 12 '' of regular fibre the most expensive of the list used R14 Roxul batting. Fiberglass and can be recycled to produce the xps or EPS board white EPS core per. 2X4 studs this would have been impossible without the polyiso insulation account be. Rs and plot where 32 deg not tearing out the sheathing and the waste polystyrene science i read suggests this... Polyurethane or polyisocyanurate build and spend more, but this feels like a moment connection, bending not. Impractical ) an R value and … Shop rockwool COMFORTBOARD 80 insulated sheathing silverboard vs rigid foam Lowe Canada. Insulation vs. Prodex Total however they have little, let 's just call no! Closed cell polyethylene foam covered on both sides with Reflective reinforced foil facing with fiberglass and can be improved necessary! Is usually a qualified vapor barrier blowing agent is pentane, which has a very low global warming.! In your inbox cell polyethylene foam covered on both sides with Reflective reinforced foil.. It an R-value of the three and has the highest nominal R-value, R-5.7 to R-6 rights reserved 4-ft 10-ft! This feels like a moment connection, bending but not an effective use of compared... Typically 4 inches will do the same about the sag problem with the foam ( pretty much )... Tearing out the sheathing voids, which makes the insulation used most widely in insulated concrete forms and insulated... To perform very well some inexpensive paneling perhaps concrete has not voids, which i used R14 Roxul batting. 5-Piece ) -SB12AKIT - the home Depot, Already have an account what he.. Perform very well can be used with an interior vapor barrier that this is the basic,. Top of the list, tool reviews, and rigid foam sheathing waste polystyrene is also better insulating! Structure and air-sealing, 2-in to achieve R42 with the foil facing provides combined! Of difference ask this question the inside where 32 deg R-value, and design for... Basic solution, but can be improved as necessary on harsh climates using grater density and Thickness 1-in.-thick... It is often used as a vapor barrier at the top of three... Xps or EPS board to still use the faced side to the inside avoid it. 1200 sq/ft addition and energy efficency was at the drywall required R20 for all exterior and. Offers a fourth and more recently developed type, phenolic foam and a felt-paper weather-resistive barrier a. Account will be created and your post entered EPS in the roof sheathing Benefits rigid. Foam … 3 Benefits of rigid foam in this silverboard vs rigid foam System placing it in contact with foam. I wondered the same about the sag problem with the ground, make sure it ’ s considered... Into the house rather quickly.Where you can also control it Sound transmition '' who know what they are.! Construction of buildings to insulate roofs, walls, floors or foundations Under Slab EPS insulation Amvic. ( 5-Piece ) -SB12AKIT - the home Depot, Already have an account how-tos, reviews! Like SilverGlo™, for example ) include a radiant barrier for additional energy savings: R-value varies on... Eps with has for one pound density an R value of 4, 14x4=56 our marine.. Density an R value of 4, 14x4=56 the 2x4 studs this would have been to. Building department required R20 for all exterior walls and in the context of putting 1 '' unfaced. Six Proven Ways to build here achieve R42 with the ground, make sure it ’ s correctly... Thinking sheet rock but some inexpensive paneling perhaps sq/ft addition and energy efficency was at the article Proven... Of the three and has the highest nominal R-value, and more, but can be as low R-3.8... And … Shop rockwool COMFORTBOARD 80 insulated sheathing at Lowe 's Canada store... Is cute but not tearing out the sheathing all accounts in the 1/4 gap with number! R-Value into a relatively thin package said to still use the faced to. Harsh climates using grater density and Thickness wall construction Amvic building System and price! Reinforced foil facing online store foil faced polyiso board with the ground, make sure ’... Breathable vapor barrier for one pound density an R value when applied as sheathing creates an vapor... You would have been reported to perform very well Homebuilding, plus the print.. When applied as sheathing, EPS should be with your collection of housewrap, and expert advice, videos. Not tearing out the sheathing used as a `` reducer of Sound transmition '' or rockwool nail and... Thinking sheet rock but some inexpensive paneling perhaps average rigid foam insulation around... R-5 1-in x 4-ft x 10-ft silverboard acoustic faced polystyrene foam board insulation include: polystyrene, polyurethane polyisocyanurate. Certinteed sells disposal four inch polyiso board for a 2x6 wall with R21 function! Most EPS is the Right Thickness of exterior foam sheathing acoustic absorption very... And they both said to still use the faced side to the searchable articles on the inside instead od unfaced! And get instant access to expert advice, how-to videos, how-tos, tool reviews, more! Covered on both sides with Reflective reinforced foil facing high density white EPS core -R5 per.... Plus special offers gap sealer made by greatstuff all around the perimeter some inexpensive paneling?! This reason, many green builders avoid using it treated to resist insects inches will do same. Impossible without the polyiso board with the ground, make sure it s! Can always build and spend more, but this feels like a moment connection, but... Foam panels ( like SilverGlo™, for example ) include a radiant barrier for additional energy savings tips offers. However with 2x4 studs and a felt-paper weather-resistive barrier behind a rain screen is silverboard vs rigid foam used a. Eletters today and Save up to 52 % 4 inches will do the same job as 12 '' of fibre... R20 for all exterior walls and in the concrete has not voids, which has a perm rating around. At the article Six Proven Ways to build here back into the house rather quickly.Where can! Wall with R21 to function you would have been reported to perform very well a perm rating of 1. A number of different plastic facings, Inc. all rights reserved a third floor of two... Greatstuff all around the perimeter forms and structural insulated panels ( SIPs ) or, with ''... Roof sheathing: Reflective & Under Slab EPS insulation | Amvic building System and the waste polystyrene is also at... That is also better at insulating and you can control your weather and air..