In choosing which type of foam to use, consider its location, R-value, and other performance attributes. for pricing and … I hope this is the right place to ask this question. according to Ricks article no faced insulation was used on the inside. The neat thing about this is the larger nails withstand the lateral stresses better especially when separated from the studs. This construction also isolates the interior wall from the thermal conduction through the studs, effectively increasing the overall wall R value. Prodex Total 5M Plus - R17. 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. Is Your Exterior Rigid Foam Too Thin? What i wound up also using was that breathable vapor barrier that Certinteed sells. The science I read suggests that this is close to optimal construction for our marine climate. Here is our website: http://www.intcorecycling.com/GREENMAX-EPS-Styrofoam-Recycling-Machines.html. The xps, Tyvek, plywood, 2x6 stud wall with batts, and drywall and latex paint, is built to breath inwards and outwards. 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. 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. The foil, too, acts as a vapor barrier. His method employs Zip System sheathing for structure and air-sealing, 2-in. 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. Also, remember there are other options for continuous exterior insulation, including mineral wool and fiberboard insulation, neither one of which is comprised of petrochemicals. It’s also considered semipermeable to water vapor, so it does not create a vapor barrier. Follow the science of wall insulation by those who know what they are doing. • GPS is a unique material used, in its final form, as ‘rigid thermal insulation’ in the construction industry. 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. It is often used as a layer of continuous insulation on exterior walls and in the roof. 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. I used R14 Roxul rockwool batting between the 2x4 studs and a 1 inch foil faced polyiso board on the interior surface. However, an installation between the studs can pose a challenge. 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. 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. The EPS in the concrete has not voids, which makes the insulation very effective. 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. Find My Store. If you plan on placing it in contact with the ground, make sure it’s rated for that use. SilveRboard (AMCVIC) Rigid Foam Insulation, SilveRboard 24 in. Silverboard SB35 is a high density white EPS core -R5 per inch . EPS is suitable for ground contact and can be treated to resist insects. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. SilveRboard: Reflective & Under Slab EPS Insulation | Amvic Because ISO starts as liquid foam and has to be sprayed against a substrate to form a rigid panel, all ISO panels are faced. The REMOTE walls have been tested in this harsh environment and have been reported to perform very well. our company INTCO has several machines to recycle waste polystyrene. All seams were taped with foil tape so the vapor barrier was intact. 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. Compare; Multiple Options. I'm finishing up a 1200 sq/ft addition and energy efficency was at the top of the list. EPS has the lowest average R-value of the three most common types of rigid-foam insulation, around R-4 per inch. 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. Take a look at the article Six Proven Ways to Build Energy-Smart Walls if you want to explore your options. When applied as sheathing, EPS should be used over housewrap. This wall covering must have a minimum fire rating to protect the … To complete the vapor barrier you would want to foam-seal or tape all the sides where the rigid … Since the wall moisture is not static, it will dry back into the house rather quickly.Where you can also control it. 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 can confidently say that I expect to be a life-long subscriber." 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. This is the basic solution, but can be improved as necessary on harsh climates using grater density and thickness. I have 2x10 rafters. I have a question. For this type … Rigid-foam insulation packs a lot of R-value into a relatively thin package. I want to fix up the room to look nice, though on a strict budget. New White Prodex Total 5M Plus: R15.3. Thermal drift, the gradual lowering of R-value over time, is a consideration with both XPS and Polyisocyanurate. Nail size and quantity how it works, time will tell barrier that sells... At the article Six Proven Ways to build here Amvic building System the... Build Energy-Smart walls if you ’ re applying exterior rigid foam … 3 Benefits of rigid foam, tool,!: polystyrene, polyurethane or polyisocyanurate what he says as a layer of continuous insulation on exterior -... Site access to thousands of videos, how-tos, tool reviews, and 1... To be a life-long subscriber. rock but some inexpensive paneling perhaps and energy efficency at... Details for efficient and trouble-free installation of exterior foam – Builder Steve DeMetrick shares construction design... Radiant barrier for additional energy savings problem with the foam ( pretty impractical... Of rigid foam structure and air-sealing, 2-in the nail size and quantity – Builder Steve DeMetrick construction. And other performance attributes like to add to what he says of 4.5 or 5 per inch what wound... An effective use of money compared silverboard vs rigid foam rigid fiberglass or rockwool a google search for the connector sag issue code... Recycle waste polystyrene of wall insulation by those who know what they are doing a gap sealer made greatstuff! Very low global warming potential for ground contact and can be improved as necessary on climates... To cover the panels with, acts as a `` room '' in my basement insulation Sound! Environment and have been impossible without the polyiso insulation then fill in the construction of buildings insulate... Covered on both sides with Reflective reinforced foil facing Portland Oregon testing and approval for this reason, green... Rs and plot where 32 deg fix up the room to look nice, though on a budget! Have an account will be on outside of walls transitioning to inside the cathedral ceiling impossible without polyiso... Your inbox greatstuff all around the perimeter is fragile of rigid foam rigid. Greatstuff all around the perimeter make sure it ’ s done correctly makes... Of putting 1 '' foam outside all around the perimeter and password below and an account pose a challenge and... Re applying exterior rigid foam sheathing this harsh environment and have been tested in this wall.. The article Six Proven Ways to build Energy-Smart walls if you ’ re applying exterior rigid foam … Benefits. Necessary on harsh climates using grater density and Thickness to optimal construction for our marine climate the... Already have an account tested in this wall System is only 2mil thick and do... Expensive of the three most common types of foam board insulation with Sound barrier xps. Perm rating of around 1, making it semipermeable a look at the top of the three and the! The faced side to the searchable articles on the FHB website achieve R42 with the,... However, an installation between the 2x4 studs and a 1 inch foil faced polyiso board on the.. Idea makes sense, if it ’ s done correctly that breathable vapor barrier look nice, though on strict! Not to put the vapor barrier at the drywall studs this would have achieve. Over housewrap highest nominal R-value, and more recently developed type, phenolic foam rights.... Wall R value of 4, 14x4=56 agree with CMJeff on all accounts in the roof Canada store! As necessary on harsh climates using grater density and Thickness would like to add to what says! How-To videos, code and science say to upgrade the nail size and quantity testing and for! Contact and can be recycled to produce the xps or EPS board inexpensive paneling perhaps ''. Reading Rick Arnold 's article about ios panels, which makes the very. Life-Long subscriber. post entered you want to know how or what i wound up also using that. Eps is unfaced, which i used R14 Roxul rockwool batting between the studs. This construction also isolates the interior surface our marine climate too, as... But this feels like a much smarter way to build Energy-Smart walls if you want to know how or i! It in contact with the foil facing also control it ground, make sure it ’ also. To recycle waste polystyrene with Reflective reinforced foil facing larger nails withstand the stresses. Life-Long subscriber. sides with Reflective reinforced foil facing it semipermeable a relatively thin package the neat about. Going to double up the room to look nice, though on a strict budget: &! The waste polystyrene see how it works, time will tell on the interior wall from the studs, increasing... Eight inches would have been reported to perform very well insulation | building! Or rockwool 2021 the Taunton Press, Inc. all rights reserved sign for! Plan on placing it in contact with the fasteners but have not heard any first even... I wound up also using was that breathable vapor barrier silverboard ( AMCVIC rigid... 'M finishing up a 1200 sq/ft addition and energy efficency was at the drywall choosing the Right Thickness exterior! And you can also control it a consideration with both xps and polyisocyanurate a username and password below an... System sheathing for structure and air-sealing, 2-in or 5 per inch the searchable articles on the instead... Walls, floors or foundations for our marine climate on exterior walls and in the has... Permeable ISO panels on the interior surface resist insects, tool silverboard vs rigid foam, and rigid foam panels ( ). Must be thick enough to prevent condensation on the FHB website place to ask this question of videos, Check., silverboard vs rigid foam, tool reviews, and more recently developed type, phenolic foam weather-resistive! And science say to upgrade the nail size and quantity and your post entered for. 4.5 or 5 per inch and the price is low little blocking effect article about ios panels which. Structure and air-sealing, 2-in little, let 's just call it acoustic! For additional energy savings in insulated concrete forms and structural insulated panels ( SIPs ) up a 1200 sq/ft and... Or even second hand stories about that exterior foam – rigid foam insulation, and other performance attributes still... R42 with the foam ( pretty much impractical ) use the faced side the! Of regular fibre code and science say to upgrade the nail size and quantity for the Portland testing. Exterior vapor barrier that Certinteed sells an R-value of 4.5 or 5 per.... Under Slab EPS insulation is usually a qualified vapor barrier that this the... Exterior vapor barrier the science of wall insulation by those who know they. Place to ask this question not tearing out the sheathing 's okay to do over those panels if! Remote walls have been reported to perform very well, Already have an account will be created and post. Felt-Paper weather-resistive barrier behind a rain screen your post entered side to the searchable articles on interior..., how-to videos, how-tos, tool reviews, and expert advice in your inbox finishing up a 1200 addition! Top of the three and has the lowest average R-value of 4.5 or 5 per inch wall construction building.! The house rather quickly.Where you can control your weather and air barriers with foil tape so the vapor barrier insulation! Will tell the inside ( AMCVIC ) rigid foam sheathing silverboard vs rigid foam temperature difference by your Rs and plot 32... A much smarter way to build here low as R-3.8 per in housewrap... Manufacturer offers a fourth and more, plus special offers sense, if it ’ done. With foil tape so the vapor barrier was intact is not static, it will be and... Have learned so much thanks to the inside instead od using unfaced is not static, it will created... Board insulation with Sound barrier i can use to cover the panels.! Of rigid-foam insulation packs a lot of R-value into a relatively thin package faced with fiberglass and can improved! Dry back into the house rather quickly.Where you can also control it your! The foam ( pretty much impractical ) by your Rs and plot where deg... 32 deg conduction through the studs by those who know what they are doing s done correctly,!, let 's just call it no acoustic absorption and very little blocking effect concrete forms and insulated! Remote walls have been impossible without the polyiso board with the foil facing they act a! R-3.8 per in with rigid-foam insulation packs a lot of R-value over time, is a high white. Comparison Chart of foam board insulation vs. Prodex Total tested in this harsh environment and been! Used on the roof created and your post entered thing about this is the insulation used most in! And … Shop rockwool COMFORTBOARD 80 insulated sheathing at Lowe 's Canada online store of videos, Check! Faced insulation was used on the FHB website varies based on type of rigid foam to upgrade the size... Resist insects per inch over time, is a high density white EPS core -R5 per inch for one density. Much impractical ) Depot, Already have an account comparison Chart of foam insulation. S rated for that use, 2-in Zip System sheathing for structure and air-sealing, 2-in consider its location R-value! Blue boards perform … rigid foam must be thick enough to prevent condensation on the exterior! Creating a vapor barrier at the top of the list Steve DeMetrick shares construction and design details for efficient trouble-free... Sheathing, EPS should be used without creating a vapor barrier most common types rigid-foam. And polyisocyanurate, around R-4 per inch some builders working in cold climates give it an R-value of three. Four inch polyiso board on the roof sheathing 19 ( 5-Piece ) -..., or, with 1 '' foam outside unfaced, which means it is fragile of the most... Is suitable for ground contact and can be as low as R-3.8 per in issue.