Groundbreaker is a Fiberglass Reinforced Plastic (FRP) barrier that provides protection for the foundation and insulation on all types of homes and buildings. Install damp proofing or a waterproofing membrane on the exterior side of the foundation wall and footing Install rigid board insulation (XPS or rigid mineral fiber) on the exterior wall from the top of the footing to the bottom of the cladding to at least the minimum R-value specified in the local building code. ROCKWOOL rigid stone wool insulation has been ICC-ES validated to be used as a continuous exterior insulation on the exterior of a foundation wall. I can confidently say that I expect to be a life-long subscriber." Exterior foundation insulation uses extruded or expanded polystyrene directly on the outside of exterior basement walls. • ProGuard Concrete Insulated Sheathing. The foam was given a coat of Quickrete coating. I rip 1/2" pressure treated plywood into 2.5" strips and secure with galvanized ring shanks. Poole’s question is whether anyone has come up with a detail that’s both practical and good looking. All the wall finishes will lap the flashing. © 2021 The Taunton Press, Inc. All rights reserved. The foundation wall system may include an earth retention system of soldier piles and wood lagging or shotcreted rock requiring consideration of waterproofing applied to the earth retention syste… Note: Basement walls require a minimum of either R-10 continuous or R-13 batted insulation. It may look easy to go buy some packs of rigid insulation … And Other Tough Questions. • Pressure-treated plywood Our commercial division is a certified liquid air barrier installer and has experience in a wide range of below grade waterproofing, insulation/protection boards. Personal protection equipment (goggles & mask) Tape measure Shovel Division, Corner Angles and J-Channel Trim (optional) Preparation: Storage All GroundBreaker™ Foundation and Insulation Protection Liner rolls should be stored on a solid, flat, dry surface. The 10-in. Insulation exposed above-grade must be covered to protect it from physical abuse and the damaging effects of the sun. After all, since the weight of your house rests upon the foundation, … The foundation wall of a building may be a cast-in-place concrete retaining or basement wall or a structural wall complete with load-bearing pilasters. Our sandwich wall panel insulation provides occupant comfort and safety with outstanding fire ratings, and well as energy savings. "I have learned so much thanks to the searchable articles on the FHB website. a fiberglass reinforced plastic (FRP) barrier that provides complete protection for the foundation and insulation on all types of homes and buildings. They range from pressure treated plywood and surface bonding cement to fiber-cement panel siding and commercial products offered by several manufacturers. Retrofit, ICF, or Frost Protected Shallow Foundations-FPSF, I use Fiberglass Reinforced Plastic-FRP on above and below grade exterior foam. Get home building tips, offers, and expert advice in your inbox. The thicker the flashing, the less likely it will look dinged up. If so, is there a problem with that load bearing on the exterior insulation? which would simplify construction. foundation walls from the exterior The best way to fix a leaky foundation and insulate at the same time is to have closed cell spray foam installed from the exterior. Even if you don't have a finished basement that you and your family use as living space, an uninsulated foundation can account for as much as half of the heat lost from your house. It can be installed either on the interior or exterior of the foundation wall where moisture management is needed. Read more . • An exterior insulation and finish system, or EIFS (synthetic stucco) Yes I know this wasn't the original question. Since this method is performed from the outside, costly remodel work inside the basement does not have to be done. It adhered very well to the foam but at each foam joint a crack appeared after a few days when the coating cured. Let our 50-plus years of experience customize your waterproofing, interior and exterior foundation insulation needs. This spring I will cover it with a thin stone veneer and hopefully that will be the end of it. The protective covering must cover the exposed (above-grade) area of the insulation and extend to a minimum of 6 While metal flashing is a good solution, it’s not the only possibility. But except for that, your planned approach doesn’t raise any Cementitiouscoating (stucco) ‐ ‐either reinforced with fiber, or installed over fiberglass mesh, or installed over metal lath. Start your subscription today and save up to 52%. 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. One of these days I will have Charlie Wardell help me with an article. What he’s not so sure about is camouflaging and protecting the strip of rigid foam that will be visible above grade, and that’s the subject of this week’s Q&A Spotlight. Get free shipping on qualified Exterior Wall Foundation Foam Board Insulation or Buy Online Pick Up in Store today in the Building Materials Department. This would move the dew point within the wall assembly outside the sheathing and end any concerns about condensation inside the walls. Checking out the 2016 National Hardware Show, SawStop's Portable Tablesaw is Bigger and Better Than Before, Fine Homebuilding Flashback: 1981, The Magazine's First Year, Podcast 318: PRO TALK With Adam Feldman, Pt. Styrofoam™ Brand Perimate™ Extruded Polystyrene (XPS) Foam Insulation features patented dovetail grooves on one face and shiplap edges on the long edges. GroundBreaker™ safeguards the foundation from hazards such as lawn mowers, weed trimmers, insects and moisture. Josh Oduin shows off the durable, zero-maintenance siding materials he used on his personal cabin project in Leavenworth, Wash. Start your subscription today and save up to 52%. If you go this route, be sure to choose a heavy gauge of metal flashing for increased durability. • A fiberglass panel like GroundBreaker from Nudo Products The possible disadvantages are that the metal flashing can get dinged up over the years, leaving the bottom of your house looking like a metal entry door that someone has tried to kick in. Foundation Insulation & Frost Protection; Foam sheathing is a very effective means of insulating the interior or exterior of foundation walls, preventing heat loss and lowering the risk of condensation issues. Bridging the insulation gap is a cost-effective investment that pays off over the long haul. Where is your termite shield? Here’s a list of materials that can be used to protect the above-grade portion of the exterior rigid foam used to insulate a foundation wall: • A brush-applied cementitious coating or cementitious stucco (for example, Styro Industries Brush On ST), with or without metal lath. Front edge of coil stock should extend just beyond your finished surface and turn down 1/2". Fiber cement looks like a good bet, and in fact one North Carolina builder has successfully used cement tile backerboard to protect rigid foam insulation. Get home building tips, offers, and expert advice in your inbox. EPS insulation was attached to the foundation wall’s exterior, which was exposed to soil backfill for 30 months. • An acrylic coating like Styro Industries FlexCoat or Styro Industries Tuff II Sandwich Wall Panel Insulation. • Insulating foundation walls has potential pitfalls. Outside insulation is an efficient way to keep heat in. With its excellent moisture resistance and … I can confidently say that I expect to be a life-long subscriber." If structural sheathing covers 40% or less of the exterior, continuous insulation R-value shall be permitted to be reduced by no more than R-3 in the locations where structural sheathing is used – to maintain a consistent total sheathing thickness.). William Poole doesn’t need to be sold on the merits of adding the insulation. PVC coil stock used for aluminum siding should be placed horizontally between treated bottom plate and concrete. The report confirms the thermal advantages of expanded polystyrene (EPS) exterior foundation insulation. How to insulate house walls from the outside. • Styro Industries FP Ultra Lite panels (XPS with a coating of mineral granules adhered to one side) Here’s a list of materials that can be used to protect the above-grade portion of the exterior rigid foam used to insulate a foundation wall: • A brush-applied cementitious coating or cementitious stucco (for example, Styro Industries Brush On ST), with or without metal lath We can help you design a system that is right for your project! I plan to protect the foundation insulation using painted aluminum flashing nailed to the sheathing and extending down below the backfill. 1, Fine Homebuilding – February/March 2021, Issue #297, Plus, get an extra 20% off with code GIFT20, Podcast 317: Natural Air Changes, Flashing Windows in Brick Walls, and Cleaning Construction Messes, Podcast 316: PRO TALK With Dennis Bessette, Simple Way to Make Old Walls Straight and Plumb, Expert insights on techniques and principles. It is installed on the interior, exterior, or is integral to any opaque surface of the building envelope”. There are, as it turns out, a number of options. The advantage of insulating on the exterior is that the insulation on the exterior of the foundation can be joined with the exterior insulation on the first floor, which forms a continuous layer of insulation and vapor control. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. When installed on the exterior of basement walls, it provides insulation, protects the waterproofing membrane and assists water drainage away from the foundation. Insulating Exterior Foundation Walls. Expanding on 57chevyfox, use foil faced continuous insulation behind rainscreen battens. Is There an Easier Approach to Air-Sealing? We are in Minnesota (Zone 6a) and building a 2200-sq.-ft. slab-on-grade home. Exposed Foundation Insulation (Section 102.4.1) Exterior foundation wall and slab perimeter insulation ust m have a rigid, opaque, and weather-resistant covering that prevents the degradation of the insulation's performance. The double stud wall could be reduced to a single 2x6 wall. Prior to Installation It provides an extra barrier around your foundation to trap in the energy used to heat and cool your home. Interior insulation cools foundation walls, and if drainage and insulation details are not built carefully there is substantial risk of condensation and mold growth. © 2021 The Taunton Press, Inc. All rights reserved. Groundbreaker safeguards the foundation from hazards such as lawn mowers, weed trimmers, insects and moisture. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. There are many articles out there about the advantages and construction details. No red flags? I used something from Menards meant for this application and after 4-5 years it is pealing away in some spots. There is no perfect answer to the question of how to protect above-grade exterior foam. New Homes: 9 Things You Don’t Need, and 5 You Do, 10 Common Mistakes Made by New Home Builders, SawStop's Portable Tablesaw is Bigger and Better Than Before, The Blower Door: Why Isn't It Called the Sucker Door? Read the whole article at Green Building Advisor. "I have learned so much thanks to the searchable articles on the FHB website. I also use FRP to protect horizontal foam during backfill on FPSF. Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home's walls thermal performance and reducing energy use while reducing heating bills, carbon footprint and improving a building's comfort level. This passage way also helps vent soil gasses from the exterior. I am looking at your example of a slab on grade construction technique and wondering how you finish the exterior of the footing insulation once the forms are removed, specifically the top of the roxul that would be exposed after building the exterior walls. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. As I recall, I may have used Red tape at the joints of the foam which could be the issue. Plus, get an extra 20% off with code GIFT20, Podcast 200: Home Shops, Working Lead-Safe, and Keeping Cool in Carolina, Podcast 193: Understanding Permeability, Insulating Behind Fiberboard Sheathing, and Building a Patio Door, Simple Way to Make Old Walls Straight and Plumb, Expert insights on techniques and principles. The thermal disadvantage of thi… Adding a layer of rigid-foam insulation to the outside of a poured concrete foundation saves energy, but it raises a key question: What's the best way of protecting and finishing the foam that remains above grade? Designed to be applied as an exterior foundation insulation and drainage board, Insulfoam DB aids in reducing hydrostatic pressure on the foundation from the adjacent backfill material while protecting the underlying damp proofing or waterproofing. Actually, it seems too easy, which makes me immediately wonder—what am I missing? In fact, insulation in the stud cavities only addresses about 75 percent of the opaque wall area. It will have a 10-in.-thick double-stud wall that cantilevers 4 in. Among the not-so-obvious solutions is one that will be familiar to anyone who’s bought a pickup truck. It’s inexpensive, I can choose a nice color, it’s suitable for a below-grade application, and it’s durable enough to protect the foam pretty much forever. 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. • A trowel-applied cementitious coating that includes chopped fiberglass (for example, Quikrete Foam Coating or other surface-­bonding cement) Insulation Protection Options 2. The 10-in. Learn More. Old-fashioned walls had siding over house wrap, over wall sheathing, which worked great until exterior foundation foam became a thing. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. The team at the 2020 FHB House discusses why they saved an old stone chimney, and walks us through the details needed to add masonry veneer to a superinsulated house. Dave Derouin Published: Oct. 18, 2018, 1:45 p.m. Last updated: Aug. 2, 2020, 11:25 a.m. 1" foam + 1/2" batten same thickness as 2x2 window and door bucks. ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures. I assume the outside wall is the load bearing wall? Our rigid stone wool insulation has been ICC-ES validated to be used as a continuous exterior insulation on the exterior of a foundation wall. FRP is cheap, durable, widely available, and adheres great to foam. Acceptable materials for exterior foundation insulation are extruded polystyrene boards (XEPS) under any condition and molded expanded polystyrene boards (MEPS) for vertical applications when porous backfill and adequate drainage are provided. Amdrain acts as a continuous insulation and a drainage layer for foundation walls. Materials used may be concrete or reinforced masonry. Insulation exposed above grade must be covered to protect it from physical abuse and damaging effects of the sun. Exterior Foundation Insulation If you are excavating to waterproof your foundation, it's also a good time to consider adding some insulation to your foundation. Concrete walls have low insulating value, which means cold from the ground transfers directly into the basement. But there are some cautions here as well, particularly in climates where repeated freeze-thaw cycles are a fact of life. Exterior insulation may provide pathways for insects, must be protected, and tied in somehow with the wall above. beyond the foundation to sit flush with the outside face of the 4-in. • Protecto Wrap Protecto Bond (a flexible peel-and-stick membrane with a textured, gritty coating) Exterior foundation insulation will reduce the condensation typically found on basement walls during the high humidity months. Martin Holladay: You will need some type of screening between the furring strips to prevent insects and rodents from entering your rainscreen gap. I will forward pictures on request. red flags. Exterior Wall. Fiber‐cement panel siding 3. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. • Cement backerboard, with or without a layer of stucco Exterior insulation typically allows a small passage way from your footer tile system to open air. Q: Does exterior insulation help with soil gasses like radon? Use of foam sheathing on foundations for frost protection can save thousands of dollars in construction cost and energy bills. I have the same situation here on a home I'm building for myself. This proposed wall system has an installed insulation R-value of R-20 and results in heating energy loss of 19.43 MBtus for the specific chosen parameters. Continuous insulation is defined in 90.1 as “insulation that is continuous across all structural members without thermal bridges other than fasteners and service openings. Foil tape seals seams permanently. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. Exterior foundation insulation uses extruded or expanded polystyrene directly on the exterior of basement walls. - M.K. The devil is in the details like this one. Metal flashing of any kind other than copper will eventually deteriorate and be slowly eaten away, FYI (35 years in the business, and i've dug up below-grade metal flashings; they dont work long-term unless they are copper.). foam applied to the edge of the slab. Why not get the best of new ideas and run that insulation up the side wall. But with Owens Corning's FOAMULAR ® rigid extruded polystyrene (XPS) foam insulation installed directly against your foundation wall, you can enjoy insulated comfort from the ground up. - M.K. GroundBreaker™ is a fiberglass reinforced plastic (FRP) barrier that provides complete protection for the foundation and insulation on all types of homes and buildings.