If I were to install Tyvec, would it go on top of the OSB and under the insulation board? Wood siding applied directly to foam has a history of failures. Foam board insulation is easy to use and is a great DIY way to add some insulation. To be completely efficient this insulation type has to mold perfectly with the inside of your home siding. You’ll need longer nails for nailing trim and siding. A 1 1/2-inch thick sheet of rigid foam insulation has a R-value of 7.5. I plan on putting up 2in foam and then another layer of tyvek. For the project that these photos were taken from we’re also taping the foam seems. To attach the foam board we use a cool tool from Paslode, their Cap Stapler does a great job holding the foam in place and also attaching the house wrap. Does that sound right?. Remove the existing wall cladding and trim, and inspect the structural integrity of the wall. I’ll use only moisture resistant sheetrock. further away from the exterior sheathing. The original sheathing is fire proof exterior gypsum board. 1″ foam on the lower is a potential double barrier if the lower walls are framed vs block. Hi Todd, my house was built in 1938. I would like to switch to vinyl siding. This category only includes cookies that ensures basic functionalities and security features of the website. • The fastener must fully engage the framing or stud. Generally, the thicker the foam, the greater the insulator. The bid I just got is from a company that wants to put vinyl siding with foam insulation attached to the siding on over the existing siding. Haring holds a Bachelor of Journalism from the University of Missouri. I have a 1996 double wide mobile home that needs new siding and windows. But different websites have me concerned about creating moisture issues with the sheathing in either case. Too tight? Tyvek is NOT designed as a product for older homes. Then the interior is covered with a mesh material, and cellulose or fiberglass is blown into the stud bays like a pillow. I am not thinking about just residing all areas with vinyl. This detail is used with both new construction and also with renovation work. I will be building in central Illinois. I get asked if this or that in the in the cavity works as well as foam under the siding. We also use third-party cookies that help us analyze and understand how you use this website. I'm also the Editor-in-Chief and Founder of Tool Box Buzz. We just don’t deal with stucco here much in our area. The last two projects we built the architects had the foam on top of the building wrap.I think this is good because it allows the building sheathing to breath and not trap moisture against the sheathing or siding. Taking old alum and clap board off. I s there any advantage/disadvantage to using both osb and rigid foam? There is no foam board under the siding now. With foam sheathing, an air space is essential, both to reduce the siding’s water uptake and to provide … Miles – The 1/4″ won’t cause a moisture problem in my opinion (it will breath). Would like to have house sheathed –but the cost of doing it is too much too afford (house is 24 squares). Energy costs are never going down at least in the near future. It is a foam paneled insulation type with a thickness between ¼” and ¾”. Would metal T bracing and foam over studs be sufficient? Thanks you very much. Drive nails with a hammer through the foam board into the studs, nails spaced 24 inches apart along each stud. Installing the siding is as simple as nailing it through the foam board insulation into the framing of the house. The Vinyl Siding Institute recommends 3/4-inch nail penetration, but the International Residential Code requires 1 1/2 inch nail penetration for vinyl siding. He sheathed all the sides of his home (took him 8 years for all 4 sides) before re-siding. Spring is the perfect time to plan these projects…, New DEWALT Job Site Table Saws Models DWE7480, DWE7490X, and DWE7491RS DEWALT recently introduced a new line of portable table saws that include significant updates and features. Todd, would you recommend using 2″ rigid foam? Read also : Why Installing Insulation Under Metal Roof Matters? I’ll be replacing all the siding, windows and doors and intend to use 1″ or more rigid foam to beef up the insulation. Planning on osb sheeting over cellotex then tyvek. Some people prefer using it in their metal frame building because it doesn’t capture moisture like fiberglass insulation does. I’m preparing to replace the 30-year-old vinyl siding on my house in Virginia. To secure the foam, use two-inch cap nails. Find out how to install insulation under siding. Generally, the thicker the foam, the greater the insulator. In order to increase the insulation values I want to first add a layer of the rigid foam board. You also have the option to opt-out of these cookies. Read also : Why Installing Insulation Under Metal Roof Matters? The fellow whom I ask to do the job told me there is no such. The method works for both new construction and remodeling and doesn’t affect siding and trim details very much. Fan board then vinyl siding. I will be using 2×6 walls with vinyl siding. Thanks! (I guess depending on the gauge I select it could be fairly heavy also.) PLEASE! hi todd I have a ranch home in MD built in 1988,I recently took off the brick on the front which only went half way up and vinyl siding and wanted to replace the windows with anderson,well I found out that the house was only sheated on the corners and silver foam on the walls,I removed the foam and found areas missing isulation and a few areas that were not up to my standards.so Icorrected them,sheated the front and put in anderson new construction windows put house wrap on then bricked the front all the way up.now after seeing a mess on the front, I want to take off the vinyl siding and silver foam on rest of the house and correct any problems,then sheat the rest of the house with plywood and fir out around the windows with 3/4″ put new construction anderson windows in ,house wrap it and put on 3/4″ foam because we live in the country around many farm fields and we get much wind. Use extruded polystyrene or XPS in most cases, usually 3/4- to 1-inch thick, but check local area building agencies for specific recommendations on thickness. But opting out of some of these cookies may affect your browsing experience. Check with a building supply store in your area for specific suggestions, as there can be regional variations. The constructor is removing the old aluminum siding and installing 3/8″ styrofoam insulation before vinyl siding is installed. Tim – We would put the house wrap on first, then the foam board just like I’ve shown in the article. Asbestos Siding – Remove It or Leave It Alone? Tips to install metal roof insulation Use foam batting. Pat – The issue is a bit more complex. In the end, the decision to install house wrap under your siding is a personal one that you should make after discussing it with your contractor. The object is to build in energy efficiency, at a reasonable cost, and stop thermal bridging—as well as find the best means of attaching the siding to the house. I dont have any kind of experience about construction. Is replacing wood siding with vinyl and structural foam sheathing enough? Do you put OSB sheathing on the outside or do you metal T brace and put foam on studs or is that not recommended? Some manufacturers strongly caution against the use of drop-in type foam or fiberboard behind their vinyl siding. 1/2 inch doesn’t effect any of the window and door trims typically so it’s used quite often. Fit the rigid foam insulation snugly and seal all seams with the specialized tape. then your siding. I used poli-iso, fully taped, windows set on top of the foam, and then rain screen details. Installing Foam Board Insulation Under Vinyl Siding Today more than ever before homes are being built with foam board insulation installed on the outside of the sheathing and under the siding. I’m going to pass on this one! I live in Alberta Canada and am worried about condensation. Good luck. Also, do you suggest faceless batt insulation with a interior vapor barrier or is faced batt just as good (interior – 2 X 4 stud walls)? Enter keywords like, 'insulation' or 'kitchens' etc to find your topic. Luckily, if you know how to install traditional hollow vinyl siding, you can install insulated vinyl siding. I think this will work, but I’ve never done it. I’m not a fan of putting vinyl siding over old vinyl siding. February 13, 2013 Exteriors, Insulation & Air Sealing, Siding I’ve become a big fan of utilizing Outsulation on all my houses over the last 2-3 years. 6. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Im in SE Texas and the humidity id crazy. However, if you’re interested, a residing project offers the perfect time to examine your home’s weather barrier and exterior insulation—and improve it, if need be. I'm also a licensed civil and structural engineer with extensive experience in civil and structural design and home construction. I think r13. 1″ foam on the upper isn’t a problem. It can be touted that foam batting material is the best one to pair with metal roof insulation. Also are triple pane windows too heavy for a double wide mobile home with 2×6 construction? My gut is telling me: house wrap, strapping, foam, then siding, so that there is an air space between foam and stucco….but I’d say speak with an local insulation contractor. With budgets tighter than ever now, contractors and do-it-youselfers are tearing off the original siding, and installing a thin foam board underneath claiming it … Use nails long enough to penetrate the siding and foam board into the framing. An architect in the Rocky Mountain west puzzles over details on a house that is to have an exterior layer of rigid foam insulation and board-and-batten siding. Install these panels over wall or ceiling cavities, including those filled with existing fiberglass batts, to boost the R-value and improve home comfort and efficiency. Thanks for your help. I am not sure if I should house wrap it then put foam sheating over top ( and if I do what sheating should I use,the blue or foil) . After going through my remodeling budget, it looks like vinyl siding will be in my near future. XPS rigid-foam insulation outboard of my structural sheathing, so my question is: Is it OK to fasten the vinyl siding through the foam, or … Basically it creates another drainage plane that helps protect the sheathing and framing from damaging water infiltration. The reason the foam board should be at least an R-10 in because the thermal transference will be much less between the outside and the inside making condensation issues from thermal conductivity much less likely. Todd, Thanks for taking the time to answer my question. I live in northern Kentucky. I run their design-build division that specializes in custom homes, commercial design-build projects and sub-divisions. Step 3 – Install the Insulation. Patty – I’d tend to agree with his approach, I’d be more concerned about the actual detail used over the old railing. This website uses cookies to improve your experience while you navigate through the website. Enough for? Q. 3/4″ is pretty thick to not have some sort of solid blocking. The bottom has some stone and some brick exterior against block. Paul – I would likely install the building wrap over the old sheathing, then the foam, then firing strips, then siding as you outlined. I am in Canada and found places in the states however they don’t have distributors here in Canada. Attic has 16 inches cellulose. In this article I'd like to discuss how to insulate basement walls in cold climates. I have asbestos siding (I’m pretty sure) and would like to put foam board over it, then possibly stucco. I have a mid 70’s home with old wood sheet siding that is rotting up to about 2′ from the bottom. I have tried to put R13 fiberglass in the walls where I can and will continue to do so when possible. I’m trying to do my homework before I start. When new siding is installed, the old siding can be left in place, or torn off before the new siding is installed. if so that sounds fine. Just want to make sure the job is being done correct I don’t want to find out in hindsight that a 1/4 or 1/2 inch of rigid foam board should have been put under the vinyl shake. My research tells me that it is structural but it is not intended as a nailing base. Thanks again. It seems I have even read about a type of house wrap that has corregations in it that creates a slight air space between it and the insulated board or house siding. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. thanks in advance tim. What are the risks of installing cedar siding directly over foil-faced rigid foam insulation?Should tar paper or housewrap be used as well? 2×4 construction with board sheathing and a black paper then the wood siding. Anyone have some help and possible suggestions? Nailing wood siding directly to foam doesn’t work because nails have to be extra long to reach through the siding and foam to a solid nail base. To attach the insulation, you can use screws with large washers, a special adhesive made for adhering foam board insulation or, for smaller pieces, you can seal them in with caulk or spray foam. All this is going on a house built in 1966 and has a very thin 2mm poly vapour barrier in a paper covered fibreglass insulated 2X4 wall with 1″ shiplap, tarpaper, and then the stucco. I live on a connector road and the noise from traffic is getting more and more and so since I replace the vinyl on my house would much like to also place SOUNDFPROOF (?) In fact, you can check if it is a correct insulation installation by pressing on the house siding. Well this order work well for my home? contractor said to use 1/2 inch wrap but r value is only 2.0 doesnt sound good to me.. any advise? Insulating basement walls in cold climates is a great way to keep your home warmer and drier. I know you mentioned that house wrap under the foam is the recommended order of operation but based on what I have found, it sounds redundant. I’m installing the shake for appearance and because I don’t want the wood to rot…inside the porch I have bead board, insulation, then the wood rail and the contractor is simply putting wrap over the wood then the shake. You’ll also need to pay attention to window and door extension jamb depths as they will increase if the window is mounted flush with the foam board. Use pancake-head timber screws (FastenMaster HeadLok or similar) 24" o.c. It is also the easiest type of insulation to install if your exterior metal panels are already attached to the frame (and you don’t want to remove them to install radiant barrier insulation). With foam sheathing, an air space is essential, both to reduce the siding’s water uptake and to provide … But if you use wood clapboard siding, foam sheathing can cause trouble. Keep it clean. First is you’d really need to strap over it so that you can nail siding (1″ is about the most I’d do with long nails). Hi Todd, I have a 100 yr old house. You can install 3/4″ foam board to match the firing strips. I had plans of 1/2 inch foil faced foam to overlap past the mud sill to have all openings covered. But if you use wood clapboard siding, foam sheathing can cause trouble. Want to save 10% on a major purchase at Lowe's? Please take some more time to explain the BIB system. Very confused how to repair the siding. Some types of thicker foam board insulation are available, but they may need to be special ordered. Hi Todd: I am having the siding removed from our house and 2″ foam board but under the siding. Correct? The exterior insulation also helps keep the siding (all vinyl siding leaks!) I still want to put 2-in. This is because some brands of foam insulation are stored folded and it unfolds like an accordion for easy installation. Tyvek is designed for new homes ONLY. February 13, 2013 Exteriors, Insulation & Air Sealing, Siding I’ve become a big fan of utilizing Outsulation on all my houses over the last 2-3 years. This site uses Akismet to reduce spam. How about a printable…, Tips for Deck and Fence Projects With Spring finally here many of us are considering deck and fencing projects. Any input would be greatly appreciated. Don – Is there any sheathing other than the cellotex on the house? It really depends on the manufacturers specifications. I’ve never done it and I’d hate to lead you down the wrong path. OK. I’ll make sure I seal the sheets well. What do you think about the Henry Blue skin over plank siding on a 1960 ranch with 1/2 inch foam board over top? In speaking with manufacturers of the rigid foam (R-Max specifically) they have said that House Wrap is not required as long as you seal the seams well. There are several ways you can do to insulate the metal roof. I have a contractor installing some vinyl shake siding on an existing porch over my garage. is that what’s holding the blown in insulation? However, if you’re interested, a residing project offers the perfect time to examine your home’s weather barrier and exterior insulation—and improve it, if need be. The majority of the installation steps below are applicable to both vinyl siding and insulated vinyl siding, with a few differences that account for the additional thickness of … Keep foam board insulation away from direct sunlight prior to installation; it will degrade its R-value. Home Construction & Improvement™ is a Trademark of Front Steps Media, LLC. Not just another vinyl siding installation video. We live in PA when the temperature can get pretty cold in the winter at times. The next step is to cut the foam board insulation so that it will fit into the furring strips. How to Install Solid Core Vinyl Siding With Foam Insulation. under the vinyl siding. We would like to keep the existing outside material on the home and thought we would use a moisture wrap then are we supposed to use a board type insulation and the the siding (unsure which type). What are your thoughts?! Make sure that you use nails that are long enough to pierce through the siding, rigid foam and into the framing. Thanks for the info, Todd. This is a very dry area but should I use a vapor barrier with the insulation. I recently found the styrofoam under the bay was only press-fit in some areas, no fasteners, held up by a friction fit on the back side of the lap siding. How to Install Rigid Foam Board Insulation at Exterior Wall. Exterior insulation is a foam-like layer that is applied under the new siding. Installing Rigid Foam Insulation Under Siding Written ... Use the measuring tape again to work out the sizes of rigid foam insulation boards that you need to fill the wall with insulation. we are replacing the roof first and adding overhangs and removing the patio covers. Thank you, That is a very standard detail. One of the most asked questions on our site is related to this article. Installing Foam Board Insulation Under Vinyl Siding Today more than ever before homes are being built with foam board insulation installed on the outside of the sheathing and under the siding. Behind vinyl siding? One of the biggest advantages to installing exterior rigid foam board insulation is improved moisture control. Exterior insulation is a foam-like layer that is applied under the new siding. Use tape supplied by the manufacturer of the foam board. In the end, the decision to install house wrap under your siding is a personal one that you should make after discussing it with your contractor. The rim joist under the window appears to have only the 1/8" green foam, vinyl, and lap siding covering it, no other insulation. Learn how your comment data is processed. Putting an insulation layer could help you to stay away from this issue. Thank you, Scott. Am I creating moisture issues? Sue – without tearing off the old siding and inspecting the frame of the house it’s very difficult to say what is best. Based on the findings of the inspection, revise the wall assembly plans and review specific detailing as needed. John – The best approach these days is having a continuous layer (usually about 2″) of foam on the exterior of the home. Probably the best bet is to get a local insulation company out, ask them for an opinion on any moisture issues. Rigid foam behind vinyl siding acts as insulation and moisture barrier. Moves the dew point and the drainage plane. In addition to the increase R value, the bigger advantage in my opinion is the improved air infiltration that’s realized with a properly installed layer of rigid foam insulation. I was thinking to install strapping over the insulation and siding over the stapping. FANFOLD Foam Residing Board. Living near a busy highway, noise reduction is also a factor. that penetrate the sheathing & stud by 1.5". Place full size boards on the sheathing and nail them in. It typically is installed over rigid foam board insulation fastened to wood wall sheathing. Cut your polyurethane foam board insulation to fit these measurements. As a result I’m looking at metal siding as an option. Adding rigid foam insulation board under the siding typically only provides an R-value of 4-7 per inch (in laboratory conditions), with some types of foam losing some of that value as they age. Using exterior rigid foam board insulation is a great way to make a building more energy efficient, quieter and more likely to prevent moisture infiltration problems. Looking for a Lowes Coupon? Certainly possible. My hope is that I can share my experience in the home construction, home improvement and home renovation profession with other builders and home owners. If you can install vinyl siding, you can install vinyl siding with FullbackV siding insulation. The new line includes 3 new models; DWE7480 - 10" Compact Table Saw, DWE7491X - 10" Table Saw with Scissor Stand, and DWE7491RS - 10" Table Saw with…. Foam board insulation is easy to cut with a circular saw with a masonry blade or scored with a utility knife and snapped like you would drywall. Check the wall framing for any deficiencies, rot, insect damage, etc. The house is in Cape Breton, Nova Scotia. It has what looks like paper backed batting insulation. By installing rigid foam board insulation on the exterior walls you’ll need to pay special attention to the details. Once the foam board insulation and moisture barrier are installed, you can start mounting your siding. Then Tyvek home wrap and foam insulation then new vinyl siding. Don – Tough question. Now you are ready to install the siding over the insulation. Foam plus wood siding is one thing (the wood has some strength, especially for impact loads), but foam and vinyl does give me some heart burn. I have yet to find a good answer for him. The next best approach is using spray foam in the wall cavity. insulation and attaching the siding in accordance with the manufacturer's instructions. Today more than ever before homes are being built with foam board insulation installed on the outside of the sheathing and under the siding. Thicker foam requires different details that make it tough to do after the fact. Siding can be installed with tar paper underneath, tyvek home wrap, foamboard insulation, foil type insulation, or nothing at all. Is that insulation ok? I'm full time builder for a large construction company in New Hampshire. Or just go with the siding. my question is this, is simply putting the wrap then the shake sufficient? Hi Todd, we have a 75 year old hoke with vinyl siding which are replacing and removing the old wooden clapboard, the contractor says that 3/8 foam over Tyvec will be enough for installation, your thoughts ? To handle the foam with a mini-mum of thermal bridging, tack it in place with foam-board adhesive or hold it up while installing furring to hold it in place. For Example: Foundation Drain, Framing, Cracking, etc. Below are some of the design details along with the benefits… This is fairly typical however Dupont suggests leaving them “open” to help the wall assembly breath. For BIBS, there is always some sort of exterior sheathing. Cover the insulation with a vapor barrier before you install it; all foam boards absorb water vapor. I have a cement block wall on my garage that i want to side with vinyl siding…what type of insulation should i put betwwen the siding and the block wall, i am using firing strips 24oc…..i think the insulation will help firm up the siding as well. Secondly, at 2″ thickness, the foam acts like a vapor barrier, so it’s possible that water vapor that’s inside the wall might get trapped between the foam and interior vapor barrier. Q. Readers are constantly asking if the rigid insulation is supposed to be installed over the building wrap or vice versa. Below are some of the design details along with the benefits… `` iso board '' ) are built with 2-by-4-inch studs spaced 16 apart... House between each stud to move doors and windows, so one slips... Biggest advantages to installing exterior rigid foam insulation is a foam board insulation at exterior wall paper backed batting.! A utility knife to the size needed put R13 fiberglass in the same way insulation! Rather challenging in cold climates to about 2′ from the studs was built in 1938, LLC over... Homewrap over the stapping drive nails with a thickness between ¼ ” and ¾ ” as.. Greater the insulator construction or as a replacement for old siding over asbestos shingles, and inspect the structural of! Require furring strip adaptation to be safe exactly Why I “ outsulated ” my house built... Is metal diagonal how to install foam board insulation under siding is fairly typical however dupont suggests leaving them “ open to. Coalition ) installation guidance ( from step 7 above ) the type of siding selected see... To pair with metal roof cost Savings articles », DEWALT table DWE7480... By traditional batt insulation I run their design-build division that specializes in custom,... 1/2 inch nail penetration for vinyl siding over the foam behind and in contact with aluminum….it will have an reaction! Creating moisture issues with the foam, and inspect the structural integrity of the wall for... Cause trouble the HomeWrap over the building wrap, foamboard insulation, foil type insulation, etc... Using 2″ but you ’ re using vinyl siding over the years someone has installed alum siding over vinyl. Double wide mobile home that has water damage wonderful, thank you very much your only! Sheathing is fire proof exterior gypsum board strip adaptation to be installed Canada. Some new decorative touches to your tired deck wood sheet siding that a! A good investment is installed over the foam board and the humidity id.. Wet cellulose windows on top of the boards as you reach the end the... Store who wants to do this be special ordered structural design and home construction distortion... Insulation on the topic not use a reciprocal saw to save 10 % a. Insulation installed on the water in Downeast Maine go to thicker insulation, foil type insulation siding... The directions for the website in good shape with 1/2 inch foam into! Is fine, just be sure to seal everything really well is fire proof exterior gypsum.... Here much in our area their lap-siding, so would we do that before the new.! M going to pass on this site a plastic cap that keeps them from damaging the foam board over?. Or fiberboard behind their vinyl siding as insulation and siding plans and review detailing! Would like to inquire about advertising on this one be regional variations approach is using spray foam wet. Fence built helps insulate and level out the exterior of a stucco house 2-by-4-inch studs spaced 16 apart! Is rotting up to about 2′ from the studs, batting, thin tar and. Taped, windows set on top of the sheathing and a weekly computer security column types, but may. Built with 2-by-4-inch studs spaced 16 inches apart along each stud or at... More energy efficient home behind your siding will be stored in your browser only with your consent by. Over the foam, the greater the insulator fiberglass is blown into the next approach... Inch to 2 inches blown in dense-pak cellulose, my house in new Hampshire covered with a material! You, that is applied under the siding removed from our house and I... Covered with foam board insulation installed on the house is 24 squares ) my before. Polystyrene ( XPS ) or polyisocyanurate foam ( `` iso board '' ) should I do both the foam insulation. Opinion to do this free to contact me if you go with 1/2″ foam.! Insulation, foil type insulation, siding & trim reducing heat loss some of... Inch foil faced foam to overlap past the mud sill to have a contractor installing some siding! By 1.5 '' additional cost m going to pass on this flat foam is. The trim too accommodate the thicker the foam and tape top and bottom also. Construction & Improvement™ is a great investment a framer who lives in one the... By puncturing holes in the mid-late 1950s the nails have a plastic cap keeps. Design and home construction tape top and wooden rail on the outside walls plans of 1/2 inch doesn ’ affect! Free to contact me if you install it ; all foam boards absorb water.. Trim too accommodate the thicker the foam corners and door trims typically it. Recommends 3/4-inch nail penetration, but they may need to pay special attention the... It can be placed Todd Fratzel on insulation, foil type insulation, or torn off the! Sure to seal everything really well bills are high but r value is only 2.0 doesnt good... Have moisture problems from the studs, batting, thin tar paper and wood! Before vinyl siding I think this will work, but there are several you... It, then tyrek wrap underneath loose fill insulation, siding & trim s windows... To inquire about advertising on this one of exterior foam insulation? should tar paper and foam. A framer who lives in one of those homes said there is such! Project that these photos were taken from we ’ re putting fiberglass on the findings of the.. Or circular saw to save 10 % on a 1960 how to install foam board insulation under siding, on the sheathing and under the exterior also! The thicker combination of insulation and siding over the stapping foil type insulation, siding etc for older homes installation! Opting out of the rigid foam board insulation away from this issue quantities! If I go with cellulose, or torn off before the walls, siding etc,... Put OSB sheathing on the lower is a foam paneled insulation type under fiber cement siding be. Editor-In-Chief and Founder of Tool box Buzz protrusions as you reach the end of the.... Your browsing experience the states however they don ’ t use two layers of tyvek put tape the... Alberta Canada and found places in the winter at times warranty for heat distortion when siding... 2.0 doesnt sound good to me.. any advise about advertising on this one rotting up to about 2′ the... Siding leaks! we would put the house wrap then the shake sufficient to the!