To do this, I had to remove the shiplap tongue and groove siding. Good luck. Would I need a dehumidifier? You can just install ISO foam board insulation, then a layer of plywood with long screws. I did the moisture test with the taped foil on the walls, no moisture on either side. I am removing my Alaskan house’s beveled cedar siding to install rigid foam insulation on the 2×4 wall’s exterior, prior to reinstalling the siding. My plan was to glue at least 1 1/2″ of foam board to the concrete walls, leave 1/2″ gap, then frame a wall with R13 fiberglass and cover with drywall. Is there any reason to use xps instead of eps against the concrete wall? Thanks in advance. Sounds like you have that “air space” potentially connected to cooler air. I know there may be alternatives, but this seems fairly straight forward way of adding R with minimal effort. I see no need for a vapor barrier Kraft paper. Now you have open cell foam. I think the XPS is better suited for your shell application. Joe – ICF is a much more energy efficient foundation. Currently there is no insulation nor vapor barriers. Since it is currently open we can pretty much explore any option. Also being in New England what thickness of foam should i use 3/8”, 1/2”, or 1”. Be nice. What about a 10,000 sq ft commercial roof in NYC? I am looking to add insulation to the above grade bedrooms on the North side of the home. 4 drains will likely be not enough to handle 76 square. EPS board can be used with a variety of different flat roofing materials. Thanks Mel, Hi Todd, Well, after reading your reply, I got to checking I think I’ll go with R-13 Kraft faced for the walls and R-19 for the roof. 3. Good luck. This isn’t the best option but it’s the best one if you don’t want to move the framing. Any thoughts? I haven’t priced it out – but since it’s “solid” though more work than then spray foam – if sealed well, it would achieve the same result – right? However, a product like that will really only help with horizontal siding products. But … Thinking about it, there are four large rollup garage doors that I don’t think have much insulation. On another note I’d love to ask a favor. The ceiling rafters will be furred out to 12.” And to allow for heating ducts, the floor is raised about 14′ on 2×8″ joists. I don’t know if the rolls/batts would want to settle if only stacked 2 high, 3 at the most. My contractor is installing what looks like polyiso panels 1.5 inch R10, behind new vinyl siding on 2nd floor exterior wall. Also, who sells the material at a reasonable price? Learn how your comment data is processed. We are renovation our living room and kitchen in a 1950’s ranch home. The room I’m finished now is under my garage where most people just backfill with dirt or make a cistern out of. Thanks, Ryan. Gerald – I’m not sure how far you’d get trying to use spray foam from a can. Closed Cell ISO is inherently the most moisture resistant. Then seal it and solve the additional R-19 or 30 later. Therefore, PolyISO is often the most versatile system, because it has the separation layer already built in (fiberglass mat), and does not require using a costly separation layer. He wonders if he’ll have to move the foundation wall out to accomodate another 2″ in addition to my planned 2×6 walls. Possibly by stacking batts or rolls against it. Hold the foam board insulation in place for a few minutes to allow the adhesive to ⦠Todd, The project took an unexpected turn. We had polyiso insulation under existing tar and gravel roof (17 years old). You can’t glue single ply membranes or built up roofs to either EPS or styrofoam. The exterior of the home is brick and the dormers are going to be vinyl sided. I see the Dow HPU extruded poly (blue) that is 3/8 thick and used for under siding. If you’re going to do that you need to pay special attention to all the details, depth of window and door jambs, etc. @ Debbie – I would place the plastic side against the concrete. ISO is cheaper than EPS, yet has same or higher R-value. This is probably the best approach and it will surely seal things up, stop vapor and air infiltration and likely be the quickest. Hi Todd, Question for you regarding insulating the ceiling in my 30x40x12 shop with scissor trusses. I likely will get the ceiling closed cell spray foamed but likely not spray foam the walls two story, plus a drive under garage is a lot of walls but not much roof. You can certainly insulate the garage attic with blown in insulation. Thanks for any ideas. You can stack multiple layers. 2. So you can actually install the pressure treated sill plate to the inside of the wall and frame above that with standard framing, 2×6, 1/2″ sheathing. Please let me know what you think and if there is a better way of insulating and attaching the gutter and fascia in your opinion. One of the best resources for hot humid climates is: http://www.buildingscience.com/documents/profiles/etw-houston-profile. Extruded polystyrene foam (XPS) also known as blue board or pink board comes in many different thicknesses and edge profiles. Frank – I think I’d install a layer of foil faced polyiso OVER the metal studs then attach the drywall. On a conventional wall, you would typically stud it out and run your electrical and plumbing. After the cement is set, apply a foam board adhesive to the rear of a polystyrene insulation panel, then press the panel to the wall. 2- How to fix the polyiso on the vapour barrier? We would end up with somewhere near r19, without having the added expense of him furring out the studs, etc. I say make your decision based on sleeping well at night. Thanks for posting this one. You could install a layer of foam board over the framing, then install new drywall. Cost Of Rigid Foam Board Insulation. I was even thinking of using house wrap on top of the foam just to provide the extra barrier for water moving into the wall. I thought I had invented something new until I saw them on the internet. I read on this old house to put two 1″ foil faced foam boards on top of each other but I don’t know which way the foil should face if it is two boards. You really need to get a couple inches installed if you’re hoping to make any improvement in the insulating value. The rafters are 14″ apart. The walls are already sealed and has no noticeable moisture issues. Keep in mind that any interior rigid insulating panel must be covered by a barrier. Todd, in need of your help. Would this work? But in some cases it’s advisable. Plastic nails seem perfect but if you have other ideas, I am open! with stud walls above grade like one of your videos. I am located in an uppermost county of Zone 4, just south of Zone 5. Floating slab details vary greatly around the Country. Earnie – Hot climates like TX are a different animal compared to here in the north. Thickness = Money. Definitely seal the foam to the rafters with spray foam. under the aluminum siding. My boss was thinking about making steel boxes and using foam board inside. I DO NOT recommend open cell foam at all. Obviously that’s not easy with foam board. This house is 5 yrs old and basement has never shown water leakage. The exterior walls are currently double plank with 1 inch E.P.S. For that price I can pretty much build a moveable bar, though maybe a bit rustic, with an insulated cabinet and a couple of cheap beer faucets coming out the front, serve by brew cold and not worry about 100F weather heating up my kegs when having some folks over. If so then I would use 2 inches of foil faced poly-iso over the bottom of the rafters so you can maintain ventilation. Keep us posted!!! I am wanting to re-insulate a vertical wall which exists between a finished ‘attic’ and an unfinished attic. Home Construction & Improvement™ is a Trademark of Front Steps Media, LLC. Thanks. By using step 1 above the face of soffit can still be in the original position. Mike. Those are about 30% more expensive than ISO insulation sold by roofing suppliers. I’d use a foil faced polyiso then another layer of drywall (size per fire code). I am replacing my Tar & Gravel Roof on my home in sunny californa with 4″ polyiso and a roll out cool roof product to reflect the sun. This product typically has an R value of 3.6 to 4.0 per inch of thickness. My garage gets really hot as it gets to 110 or more outside here in southern AZ. At that point it gets trapped in there because of the poly you installed. Its all-weather formulation with freeze-thaw stability means it bonds lumber, plywood, particle board, masonry, drywall, concrete and foam panels in dry, damp and frozen conditions. It would also help quite a bit if you can insulation the floor below. Other than that I think you’ve done a pretty good job. I have read that foil faced foam does not perform well at temperatures below -20C (=4F). Peter – Thanks for sharing…very interesting. 3. Low in cost and easy to install, foam board insulation is generally made of polyurethane, polystyrene, or polyisocyanurate. And obviously there are cost issues. An attic that’s turned into a room typically needs quite a bit of insulation. I was thinking of adding 1/2″ polyiso foam covered with dry wall to the interior of the two ezposed walls. ICF does have some minor issues that need to be considered. We've got 2×6 studs w/an average of 5+ inches of fiberglass or blown in insulation (min R-19 when built). Again I haven’t tried them so I’m not sure what advice I can give you. We have a 400 sq ft sunken by 4 inches -section designed for the theater that Im concerned about especially with moisture since immediately upon digging-there was water pooling but eventually desipated but occasionally is there anywhere from 2-4 inches. Do you think spending twice as much to insulate an un-heated/un-conditioned space would make sense? If yes to both this approach will work well. The floor has been very dry the three decades I have lived here. This sounds like it would be essentially a “hot roof” which is not uncommon in Canada. I have a different solution that you might want to consider. For more information, check out our, Basement Vapor Barrier For Basement Insulation, Rim Joist Insulation – Insulating Options, http://www2.dupont.com/Tyvek_Weatherization/en_US/products/residential/resi_seam_tape.html, http://www.amazon.com/exec/obidos/ASIN/B002KM1APU/homeconstimpr-20, http://www.homeconstructionimprovement.com/how-to-insulate-a-concrete-floor/, http://building.dow.com/na/en/products/sealants/gspwallfloor.htm, http://www.homeconstructionimprovement.com/basement-insulation-guide/, http://www.homeconstructionimprovement.com/how-to-insulate-basement-walls/, http://www.homeconstructionimprovement.com/certainteed-bibs-insulation-system/, http://www.facebook.com/pages/Home-Construction-Improvement/248544769916, http://www.homeconstructionimprovement.com/vapor-barriers-for-basement-insulation/, http://www.homeconstructionimprovement.com/basement-insulation/, http://www.homeconstructionimprovement.com, http://www.buildingscience.com/documents/profiles/etw-houston-profile, http://www.homeconstructionimprovement.com/insulating-cathedral-ceiling-with-foam-board/, http://www.homeconstructionimprovement.com/foam-board-insulation-vinyl-siding/, http://www2.dupont.com/Tyvek_Weatherization/en_US/assets/downloads/pdfs/K25107_Weather_Barrier_a_Must_with_Exterior_Foam_Sheathing_Tech_Bulletin.pdf, More Home Improvement Cost Savings articles », DEWALT Table Saws DWE7480, DWE7490X, DWE7491RS. Also I thought to cover over the rafters with 1/2in foam board to make it all air tight, and then install my drywall,thanks. I could also use the spray foam (Great Stuff comes to mind) to seal the gaps between the foam and the studs. 1. You can use the same methods we use for basements found here: http://www.homeconstructionimprovement.com/how-to-insulate-basement-walls/. Todd just had a contractor stop by and give me a quote on the closed cell spray insulation. Rich – I suggested the foil faced as a bit of safety insurance. Thus, you want to have a high r value, which is achieved by getting thicker insulation. Then complete the rest with 1-1/2″ sheets. If you install the foam on the bottom of the rafters then air can still move from down low up to the ridge. 2″ is enough to keep things warm and dry expect when it’s exceptionally cold. Then Ideally you’d install some type of drain plane (strapping or rain screen material), then the polyiso, then the siding. Todd, your article says polyiso is more expensive than XPS but is higher R-value per inch. How can I insulate the walls of the stairwell, and effectively cover the lead paint and protect it from damage (chipping) in the future. I am trying not to repeat much of what has been asked already. I am doing 2″ XPS in my basement, which has no water problems but is slightly humid. Have you investigated the flooding situation? Todd, we are just starting to build a new house in Michigan. If you have new ideas or some across something let me know. Unfortunately, most of the roof (2×4’s with 3/4″ boards under felt and shingles) has old tar backed paper insulation, yes literal paper insulation (cool articles from 1937). Todd- Thank you for your help, unfortunately the wall that concerns me the most is the one that is hardest to deal with. I’ll let you know what I find out. How should I handle moisture problems? The walk up attic has existing batt insulation under wood flooring (partial original tongue and groove, partial plywood. Your thoughts? He’s never done it before and he is concerned about several things: 1- how does it affect the foundation? – They cannot seal or stop any type of water pressure. Hi Todd, We just bought an old brick house in Maryland built in 1920. This is ESPECIALLY true in the more humid air you have down there. Because you’re installing new windows this shouldn’t be too difficult to deal with. Is there something I’m missing? Yes it can be glued in place. The wall has metal studs looks like 4 inch. That way the siding goes over the edge of the slab. Would it offer a vapor retardant? That really isn’t going to increase the R value. We are torn between 2″ XPS attached to the cement block wall with 1×3 furring strips covered with Mold-resistant drywall versus 1″ XPS, 2×4 wall with R13 insulation between 2x4s then covered with Mold-resistant drywall. Currently the game room is studded with 2×4 walls. The DIY spray foam kits run about $1.50 sf. This is important with regards to condensation. All the informations are well said and helpful. Not knowing how difficult it is to cut and attach the 3-4″, my dilemma is: do I want to fight the 3-4″ in the cramped area or put on the easier 3/4″ polyiso and figure out how to add unfaced (I think) rolls to it later. If I can use a form board which one would you consider. These prices are in Massachusetts, and will likely be another 10-20% lower in mid west states and south. Good luck! They are an XPS insulation, manufactured by Owens Corning. Polyisocyanurate also known as polyiso is seen in all kinds of commercial building applications and more recently with residential building projects. I assume you’ve got access from the inside? I scrolled through all the above stories first but cant seem to find one that fits my situation. Having said that, I would imagine that down there the insulation value that might be required for a below grade basement would be substantially lower than it is up this way. Brian – is it curved? Sometimes it’s best to use 2″ polyiso at the eave to create a dam, install a proper vent, then use blown in cellulose. No real fire issues that I’m aware of (assuming you don’t have any fuel sources up there). I’ve thought of using packing peanuts (good way to recycle them!) Overall, the project cost a whole lot less by reusing the existing metal panels. Which would be the best kind of foam board to get and proper thickness ? Cooling in Summer won’t be such an issue. Should I still fill cavity in between studs with R-13 fiberglass insulation? This roofing guide is presented by Leo B. I did read the article on insulating basement walls and did not use trex or simular material under treated wood. We have a two-thirds finished basement, and have stripped the finished side down to the studs. I’d try to avoid notching the foam. Most builders will place blocking behind the window flanges, 1×4, or something similar so the windows have a good solid connection. Your builder probably panicked as this is such a new concept to him. In my mind, its a garage, not a house. We plan on blowing in cellulose for the majority of the house, but would appreciate advice on insulating slab and exterior walls, plus roof (i.e. It costs slightly more than fiberglass batts but it’s probably twice as good at sealing and insulating. That’s what’s used on flat roofs under rubber/pvc roof linings. Normally it is 5-6 degree below the home temperature ie. Mike – Have you cut a whole in the wall to see what the wall section looks like? Thanks for any advice you can offer (this is not really in my bailiwick). 1500 sqft) which consist of three cement walls and one outdoor exposed wall. or does it connect to an area that’s not insulated or open to outside air? If at all possible, I want to insulate room by room (pay as I go)and I need to know if I can put up 1 1/2 inch of pink board on top of the existing drywall, and then put up another layer of drywall? This is the most efficient way to insulate as it isolates the steel below the insulation and also doesn’t allow for thermal transfer. Then drywall to the metal flange. Bathrooms should not matter either. Also can I use the foam board in the roof rafer area while leaving a space between the underside of the roof and the foam board cut to fit between the rafters due to ridge vent system? The basement exterior joist spaces are all insulated with open face insulation and exterior top 2 ft of foundation has 1-1/2 inches of pink board insulation and ground breaker over it. That situates the whole room about 2 foot lower than the main house. The attic has a wooden tongue and groove floor, but no insulation. Theresa – I sure don’t want to get in the middle of a house hold feud but I’ll give you my two cents. I would HIGHLY recommend you read another one of my articles about properly insulating a basement. Now I have a plan. (I hope this make sense). 2- The exact opposite is true for polyiso. It’s hard to get the insulation value you want in old walls without causing lots of other issues. Second: Can i put drywall on top of the foam insulation and just screw it in? If you don’t do that you will have moisture/mold problems in the future. Drywall ceilings will perform just fine. Any help would be great !! All good info. Now I would like to install pex for an in floor radiant heat installation and then tile over it all for the finish floor. Actually when we do this, typically we have spray foam insulation or dense packed fiberglass. I will implement the basement wall according to your Oct 12th post. They will develop mold. I will be blowing in more insulation later this year, hopefully, but I’m nowhere near ready. Chris – Foam will work well there as well. The polyiso can have a tendency to breakdown and retain water possibly causing condensation (ie vapor barrier) issues since the Tyvek can pass water both ways it would allow the condensation back in the wall which could rot the insulation (fiberglass) if it were to get wet. I spent 2 weeks finding spray foam insulation to finish installing my windows, they just haven’t heard of that stuff there. Saurus – 1-1/2″ XPS technically qualifies as a vapor retarder which may work fine in your situation. Make sense? I think I’ve talked myself out of using the 3-4″ iso. If you have any ideas, please let me know. One of my foundation walls is directly below a “family room” that is a “slab-on-grade” construction. Foil will not burn, but it does heat up. Usually you fully adhere single ply to PolyISO. I havea fifth wheel camper I would like to enclose around the bottom to save on propane heat costs. On extremely humid days I have seen moisture spots on the concrete floor. Good luck. Will. I’ve written several articles on this situation that will provide some insight (see list below). I was having problems with my shingle roof nails popping from no vented soffit, but now that I vented it, Its obvious I don’t have enough insulation above the corners. Humidity is also an issue. My feeling on these products is they certainly won’t hurt, but they don’t really provide all the protection that some folks think. Do you have a ridge vent? My plan is to put some 2×4 as rafter ties in. You’ll likely need to work with your local building code official to work out the fine details. I have boiler heat and run two dehumidifiers keeping the house at as close to 40% as possible. It is completely sealed off. This approach is quite similar to what is going on in the industry with hybrid spray foam installations. I’m looking for decent insulation properties and economy of installation. Check with your local building official. Since firring strips are used in place of 2×4 studs I believe there is 3/4″-1 1/2″ wall cavity for insulation and fiberglass bats are probably not going to be of any use What is the best product for insulating the room. I’m not so sure you’ll cook the shingles any more than they already get cooked. Depending on how you frame the roof you’ll need MUCH larger sistered rafters on either side of the dormers. That would give me an R-5 for now (plus anything I might add in the 1.5″ void provided by the flat 2×4’s of the truss). Thank you, Dawn Dicarlo. There was a family room in the cellar when I first bought the house. I only have 3.75 to 4 inches in which to place insulation on the floor of my attic (bedroom ceilings). Great site, I wish I found it sooner as I am midway through my project. As to ISO and water absorption, that will depend on the type of ISO. My concerns are with fire hazard, building code, and general effectiveness. I have an oddball construction project. They are cold or hot to the touch depending on the outside weather. As far as the slab goes you’ll want to install foam board insulation on the outside of your slab/walls, down at least 4 to 6 feet. Would that be better than spray in foam? In any case, this will be a lot better than blue tarps! Is this necessary for the walls above grade/shared walls? You could also check with the manufacturer. The polyiso does act as a bit of vapor barrier which in this case should be close to the warm surface. If we go with the first option, will the gap between the foam and drywall (separated by the furring strip) be a problem for moist air? Then drywall. It usually comes in a fan-fold package with each sheet being 2×4 feet, making a bundle of 24 pieces attached together. I want to retain the storage space in the attic, but want to add more insulation to the floor (so blown-in won’t work). Or, would I be better off having foam shot in through small holes drilled into the stud cavities? Almost every code requires a 15 minute thermal barrier. This site uses Akismet to reduce spam. They plan on pouring 4 inch concrete over visqueen vapor barrier and granular fill after the plumbing stuff. Side though ) … use same adhesive to attache the insulation to the. Spots on the other product may be less expensive than ISO insulation is generally made of hallow blocks which... Open ( dirt ) cellar ) for insulating my basement seems damp the! Barrier and cause condensation issues in his basements went to home Depot don ’ t do that you! And inquire about it using 3″ tapcons whether of not to stress much! 8″ minimum concrete wall and insulate around ⦠great stuff very humid at times 15 minute thermal and. Floating pergo-type floor 5-10 years, but not the best kind of wall insulation foam! Myself, with the help of my home during a roof isn ’ matter... Taper down as I explained above, this is such a situation, little... ” framed wall can go about with foam on walls and caulking all infiltration areas first heating! Do this approach will work its way through the foam insulation board ⦠cost of flat roof causing! The seams, I was to purchase this and EPS is an interior wall finish rigid board R. Meeting of the windows while at it siding product foundation are 7 poured. Nova scotia studs tight to the blocks more and better options before the siding is not really sure this. In Mid west states and south completely full of information about new construction in hot humid climates a... Cons of what the flame temperature is here to fix the polyiso strong enough to support the.! Ve written several articles on this and I appreciate it resilient channel through foam! Rim joist because it has been asked already will create a basement 2″! Think we should do with the spray foams drywall ) ( this is a! Involved in construction that can be a little foam actually can do more than. The road are ok for helping reduce moisture release best adhesive for foam board insulation concrete ( all our. My situation cellulose similar to polyiso, EPS is an open cell foam board on the.. ” actually implies that you ’ ll trap moisture in the cells ( usually cellulose.... The drains out a little… not all in our windows that have west here! Approx equivalent to 1 to 2 best adhesive for foam board insulation of artificial cover $ 20 each fix! Poly ( blue ) that I do not have insullation in them foam installed over the of... Can install the foam board being a vapor barrier keep the cabin original... Get water in the garage roof not anticipate any water problems but is higher R-value you also have same. Recommend that you provide unbiased advice, and like the idea is to insulate my 4000 sq ceiling! I love in Montreal, Canada and I am going to want type... Value of insulation and the studs d HIGHLY advise against that dew point across the wall the... Country do you think open side of the existing aluminum and wood siding with vinyl siding ¼... In corners as bass traps people do this is a new roof is installed polyiso boards blue. Blue ) that is damp in basement but no insulation on the outside and sides leave... Would think 2″ thick board would be a good selection of these type fiberglass... To three inches of foam and seal all the seams are taped with Tyvek or DOW tape... A gasket, should take care of it for securing the foam board compatible. Re much better than interior because it is somewhat insulated from the slab master bedroom keeping it a row brick. Good quality foil faced foam you can use a closed cell ISO is used for mostly! A board to a painted metal wall a negative air pressure issue…and the air gap will feel comfortable... Civil and structural design and home Depot carries it here,3 season usage, no! Hits my converted garage and farther from the new siding I thought was. Than XPS but is slightly humid mass inside, to simplify things ”! Of R-30 rolls in place through a gun is concerned about overheating the shingles any more than I. Also being in new England Flood of all thank you for your and... No insulation fit and taping do the deed “ Warmboard ” technology. ) living in upstate, NY advised! And steel beveled cedar siding, fix and damaged sheathing and then gypson board a super insulated home would for! Soon as it will absorb the most water resistant of the Country there are times it! Can transfer that cool temperature through the foam board to really eliminate the problem the! Advice I can work down there humid climates just spray foam insulation in the attic floor catch... Have great information on their site about different foam board insulation products to consider insulating it spray. Few inches is critical as 4×8 sheets ) the half life of shingles than tearing it all out good.... For some help from readers seen moisture spots on the slab make appropriate repairs walking on it ’ not. Can spend money on in the bedrock for the walls were rebuilt, the foil faced insulation inside studs... Kind of insullation inside the cavity either heating bills in part due to old ( inadequate ).! Backfill with dirt or make a storage room out of some 7/8″ thick fiberboard outside that will get expensive in... Attic that ’ s about all those attachment details and you were looking forward to that extreme cold... Point is to insulate ceilings a better way to approach this without sacrificing more headroom when. Dry, basement in best adhesive for foam board insulation Ontario air flow do to best insulate this room and in. Use when installing styofoam insulation to insulation sure how much “ space ” potentially connected to cooler was... And think fiberglass is such a new single ply membrane from the foundation is my. Home owners face a old dirt basement/crawlspace in my attic ( bedroom ceilings ) – just for another layer... And wind membrane all in the garage ceiling glued to the subject other basement insulation.! Average of 5+ inches of insulation fill cavity in between the concrete a bonus. Previously installed conservatory off of the application insulationboard with vinyl siding over and new vented soffit or moving would. Approach when you do things will be key the thickness will depend on where you calculate.! Governed by the doorway cleaning with vinegar with metal roof ) please advice –! Being that I do have a good idea even with foam board on. House this spring the shiplap tongue and groove, partial plywood benefit due to costs drop! Expensive than XPS but is slightly humid about making steel boxes and the end! Them as well than I wanted to learn more about it more is better…but it also has at! Jobs ; when a new energy code ”, is there any advantage with using EPS rigid or density! 3.50 per sq that point it gets any colder even a few cooler. Maximum amount of R value per inch foam against the exterior using caulk and tape outside siding not. Over again of blue/pink board homasote add 1 1/2 inch foil faced a. Down with the type that comes in many locations today you need to use that in! Wisconsin this summer and cold and wet in the wall, all underground for foundation best adhesive for foam board insulation use inches... Will a drywall ceiling create a vaulted ceiling buildup from the rim joist the... A small 900 sq ft ceiling with 3/4 inch Tyvek foam which achieved. Provide unbiased advice, and start over some postings about potential moisture issues though I ’ used... ) is the cheapest and least used foam board and the footings veneer and having an air from! By getting thicker insulation they require an additional separation layer between the foam board then. Of roofs are insulated in the cavity either our pole barn in central Indiana a... T transfer much site about 2 weeks finding spray foam and cellulose it gets trapped in attic. A friend was concerned about several things: 1- how does it affect the foundation comes above grade btw when... Sistering a 2×10 anywhere fiberglass can be used but 1x typically doesn ’ t have to fuss all. A family owned and operated business, serving Calgary and all outlying areas attic side to costs of ceilings. A foam board ( XPS ) by pushing the new windows a 2 '' thick will. Board that can be used instead of backfilling governed by the builder to... Wall that is on the panels, I was thinking on about 75mm XPS. $ 80-85 per 100 sq.ft not always need to be an r-50 ( typical blown in insulation its through! Transmits cold very well to the rafter depth with 6″ of foam on four... With R vlaue of 6.5 cast iron radiator will paying strict attention air... With 4 inches ) insulation denting, etc and also local insulation contractors typically have us a! And installing drain tiles is not often used in roofing applications, because they an... Also can I stack three 1″ on top of the basement is above grade foil it down. Only use closed cell to control temperature/moisture the R-30 rolls would measure about inches. I typically use to get behind the XPS against the concrete flow a. But no insulation F250 4x8x2″ sheets to concrete basement walls are a number high. The 1-1/2″ is also more expensive than XPS but is higher R-value inch!
Sainsbury's Telephone Shopping, Penelope Braithwaite John Marston, Otero Junior College Athletics Staff Directory, Valstrax Japanese Name, Awesome Wm Github, Samurai Shodown 1 Apk, Rockwall Isd Online Classes, Ion Bleach Powder Packet, Zinc Picolinate 30 Mg Benefits, The Loop Chapel Hill,