how to attach fiberglass insulation to concrete wall

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If your attic floor has no insulation, install faced batts or faced rolls between each joist, with the moisture barrier facing down against the drywall or plaster ceiling below. However, do not compress the insulation, as doing so lowers efficiency. "Fiberglass batts are never held in place with fasteners through the fiberglass batts" "Never" is a pretty big word. Nail a 2" x 2" furring strip to the edge of the sill plate at the top of all walls to be insulated. Because of this it’s nearly impossible to stop the migration of water from the concrete into fiberglass insulation. *Pre-drill through the insulation and into the concrete, and then use Tapcon fasteners. To insulate with fiberglass more efficiently, try out these tips. With either method, a 2-inch-thick layer of expanded polystyrene (EPS) or extruded polystyrene (XPS) … The second is to position foam sheets along the middle of the wall section and cast concrete on either side. Install mineral wool batts in the cavities. Adding insulation will keep your basement warmer, make the floors above warmer and more comfortable, plus it will lower heating bills. h�b```�@K^A��1�'VW�W�onz ,``8���]Ι3�@��d�{l\��9���[릅ٌ��Nnμ�ԭ�n�v�F=��$��������dDb�C [� Against the concrete surface with the still-wet glue, place the insulation … Just be sure to use UNfaced batts (no kraft paper covering). How to Insulate a Cathedral Ceiling with... How to Insulate a Cathedral Ceiling with Batt Insulation. Faced means with built in Kraft paper on one side that is used to form a vapor barrier. If you have a concrete block foundation, also seal the openings on top with expanding foam. You need to split the batt into two pieces from top to bottom so that it fits around electrical cables. Work quickly so the glue doesn't dry before you're ready to attach your panels. It consists of fine strands of glass. The same principle should be applied if you encounter plumbing pipes in the wall. suggestions. Attach the bottom plate to the floor using "liquid nails" adhesive, then drill holes with a masonry bit every 16" into the floor. Apply the adhesive to your concrete surface at a time when you can do the entire surface to which you'll be gluing your panel. How to Save on Heating Costs With Insula... How to Save on Heating Costs With Insulation. Raise the glued panel with the adhesive side facing the wall. home improvement and repair website. Frame an interior 2x4 stud wall at 24 inch centres, pressed tightly against the foam panels. That’s because in the past, insulating concrete block homes meant adding interior wall insulation, by building another wall against the concrete, and insulating between the studs. Tip For best results, use an adhesive and trowel size that are recommended by the fiberglass manufacturer. Our local code is to use ridgid foam insulation or closed cell sprayfoam (min 1″ thick) on the concrete/exterior wall. View our Privacy Policy here. Fiberglass insulation may irritate exposed skin areas; therefore, it is recommended to wear a long-sleeved shirt, long pants, and light work gloves. Copyright© When to Use a Vapor Barrier during Drywall Installation, Tips for Installing Blown-In Wall Insulation, 5 Reasons Triple Track Storm Windows are Perfect for Old Homes, Tips for Safely Cleaning the House While Pregnant. Today, there is no need to lose out on valuable interior space, as you can use external wall insulation to insulate your concrete block house. Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of … This blocks water vapor from escaping in the room through the insulated walls. After the adhesive cures, add extension boxes to the outlets and switches, and spray foam into … You don’t need any poly between the concrete and the foam insulation, nor do you want poly between gypsum drywall and the insulation. However if the fiberglass is directly against the concrete it will wick moisture out of the concrete so you do want the gap to avoid the wicking problem. Generally, interior walls use batts with an R-11 to R-13 value, while exterior walls use batts with an R-19 to R-21 value. If your wall frames measure 2X4, purchase batts that are 3.5-inches thick and have an R-11 or R-13 value. Drilling into concrete and block walls is a PITA in my opinion. The vapor retarder may consist of some polythene sheeting that you drape over the walls once you’ve installed the fiberglass. There’s two ways you can go about with foam board insulation. Then you frame out the wall, fill the stud cavity with insulation (as normal for exterior walls), then vapor barrier over the top of the framing, sealed around the edges. hެ��n�8��`߁�-ٟ��@Q�v�&]�I��"�Ƣmmdʕ�$�ӗCI��sj!�a8���}�Y0��8dB,���m+f�폩f&�P��3F!K� b�g��m��������J�,���Ooޠ{8dc�W submitted to our "DoItYourself.com Community Forums". Attach the drywall to the wall . Firstly, you can apply it directly onto the house’s concrete walls with the help of a construction adhesive that will hold it in place. Plus, using a dull blade puts you at a greater risk for cutting yourself on accident. There are various grades of insulating batting for different locations in the house, so you'll need a different insulation for interior, exterior, attic or basement walls. Next, attach the vertical 2x2 boards to the wall following the same steps. This is why in most areas it does not make sense to put a vapor barrier on the warm side of a basement wall. Basement Wall Blanket Insulation is installed horizontally either half-wall or full-wall, starting at the sill plate. I think I can hold the fiberglass in place by impaling it in the same way semi-rigid fiberglass (703 board and 705 board) is held in place, but the pin needs to have more friction than this case. Fit batts tightly around electrical cables and boxes Fill all voids. 0 {����H�0�n^1��}�����g�'C�v��GE�� �2��Uv����cU*=Rչ/0�.��A_5RڰN�A_�T6�{�SY�ye硚ˑ�^�.UYe 9�ۚ�)�Ү����k%�Ǩ��$���TiXˬHQ岚�*���M3-�¸X�v�k�*�E���tf GE^ht�C���>��c {�8� >a�S|��B�#��n1���r̠Q`�o(Q�`�k��K|ǥ,_cW������T���_h����;6�h� �9�օۗ�,_���m�e��lhRĬ�����m�\�,J(�\�9��|���Ǐ63�v�N��Ӿv6CS*3��_�Ti�������qhd���z�+J�f_�x}�dK*��)J��\k�û�!���h���s�gee('�M��� G2��B��.. �B��v �P�����fmj��yh����9L=�9�!��ݟ���)���~���aT�y�*�y��Q_bףHZ�z�ΛI�i����,6y_��m��6�M{گ�CcG�x�mn^��O�]�\u`�Q���;FjBn�\�"n��DkT��wc�8'��X�l@Ѭc�aq|���yI�bGx-��{�� ���k�x��� �� I am in the process of refinishing my basement. Remember to install from the bottom all the way up to the top of the wall. Now, as you glue the panels to the exposed concrete blocks, leave a ½-inch gap at the floor and ceiling, and cut holes in the panels to fit around outlets and wall switches. The key to effective wall insulation with fiberglass is firm placement. H,~H���|�^.�X����Y%z[#V�����-ܥ�Kg��k�\. The first is to cast the insulation onto one face of the concrete. These batts can come faced or unfaced. This padding consists of long, panel-like forms that you fit into the studs or frames on your walls. Use constructive adhesive to attach the board to the wall and use caulk or expanding foam around the edges of the board and against the studs. Fiberglass Insulation in the Attic 3 - M... Fiberglass Insulation in the Attic 3 - Most Common Mistakes. Any other time the interior surface is warmer than the concrete. However, do not pack in the insulation too tightly, as doing so will lower efficiency and may bulge the frame. 4. Plastic vapor barrier against concrete wall, fiberglass insulation inside stud wall, then drywall; Fiberglass insulation inside a “bag” hanging from the rim joist down along the foundation wall; Stud wall filled with fiberglass insulation an inch or two away from the concrete wall [1] Those mistakes can increase the chances for mold to grow. We want to add more insulation from the outside to an area currently insula... Ceiling fiberglass insulation in basement. Step 6 - Attach the Insulation Panels. 3. Add a concrete screw to each of these holes. Instead, leave a 1/2-inch allowance for length and width when you cut the batts to ensure there is a tight fit. 84 0 obj <>stream Secure each stud at the top, middle and bottom using concrete screws. problems contact webmaster@doityourself.com. For 2X6 frames, it is best to use batts that are 4.5-inches thick with an R-19 value. Fiberglass batts are the most common. Place one half behind the cable and the other half on top of the cable. Usuallly, fiberglass, is not recommended in basements, because it is SO air-permeable, but paired with XPS foam sheet at wall, would be a hybrid solution. Attach the blanket to the wall using furring strips or a Hilti-type gun to drive fasteners into the concrete or cinder blocks. The non-combustible and non-absorbent properties of fiberglass make it a cost-effective and practical solution for residential insulation purposes. Staple the sheeting to the frames and cut to fit securely along the wall surface. Hi Experts, I need your help with some insulation issues that i have. Unlike blow-in insulation usually used for attics, fiberglass batts are used for insulating walls. Tapcons especially in block walls only hold about 75% percent of the time (for my amateur hands). Stick the foam board to the wall . Also be sure to … Be careful not to cut through the wires, as you could cause a fire or hurt yourself. Concrete, stone, concrete block, and other masonry foundation materials have very little insulating value - a foundation wall can account for approximately 20% of heat loss. Based on the response from Roxul, the three best ways to attach the Comfortboard 80 to a concrete foundation are: *Wait 28 days and use the Ramset fasteners. DoItYourself.com®, founded in 1995, is the leading independent Step 2: Insulate Concrete Wall using 2-inch Foam-Board. I purchased a Therma Tru fiberglass door with two panels and a six-boxe... Knob and tube buried in fiberglass insulation. To give the insulation a finished look, tape over all … to this site, and use it for non-commercial use subject to our terms of use. It generally has a white plastic wrap cover that holds-back a thin layer of fiberglass insulation. It’s usually installed on all of the basement walls from floor to ceiling. installing roll insulation in ceiling of basement which is under floors of living space my basement is heated but a smaller amount than up in living space (usually 66-68 upstairs and 58-60 at the same time in basement) my question is about the kraft paper facing, I think it should face the basement because of any moisture in basement. h�bbd``b`�$���4 � $��A� BD���A�>+D� =DpE � !8Hp(�����g`$��ϸ�@� ��1 This is called the “R-value.” A higher R-value requires thicker insulation, while a lower R-value uses thinner insulation. Basement wall systems should never include polyethylene. Tips for painting new exterior fiberglass door? Tip the top and push the first board into the corner and hold it against the wall. Fiberglass insulation is widely used to regulate temperature and sound in homes. Purchase batts that will give you the desired efficacy in insulation. Concrete walls have a significant amount of water in them for the life is the concrete. See How to insulate a basement wall … The basement of the home is 90% finished. Fasten a second row of 2" x 2" furring with power-actuated fasteners 48" below the sill plate furring, Is there something quick and easy (maybe not cheap) that I can use to anchor the insulation to the block wall. Drill holes in the frame and the concrete using a drill with a masonry bit. We welcome your comments and This is to release condensation and moisture wicking through the concrete, and to prevent wicking of any condensation, from the concrete surface, into the fiberglass. Concurring with DA01. It is best to encapsulate electrical cables and boxes. Fill in the gap snugly. �#|(ʙ���2���I3r|r��]fʅ��HVW�T+�.� Finishing a Basement 9 - Adding Insulati... Finishing a Basement 9 - Adding Insulation. Questions of a Do It Yourself nature should be 53 0 obj <> endobj It is a good idea to install a vapor retarder for unfaced insulation (insulation that does not have kraft paper as a vapor barrier). Step 5: Form a Grid Pattern by Nailing Vertical 1x3s to Horizontal ones. In my basement that I am finishing, I am leaving the laundry/mechanical roo... Best way to insulate my Basement ceiling (New Jersey). Secondly – and this is the best way – you can install a drywall to frame the wall before applying foam board insulation. Add fiberglass batting insulation to the cavities in the 2x4 wall. *It is not imperative to add the foam sheathing layer; however, by doing so, you can greatly increase the effectiveness of thermal energy efficiency. Pros: Saves a little bit of space. Cut thin strips of insulation and fill the gaps between the frame and opening of the window or door. The paper should face the inside of the home. When you insulate with fiberglass, you can enjoy a quieter and cleaner home. Fortunately, properly insulating your walls doesn’t require highly specialized tools. 1995-2018 MH Sub I, LLC dba Internet Brands. 5. Measure the wall and mark it using the chalk reel. endstream endobj startxref Cut the board to fit between the studs from side to side and against the concrete wall. Trim the bottom of the insulation flush with the floor. Install two inches of rigid insulation board directly against concrete. Press the fiberglass in place and apply pressure across the entire sheet to bond it with the concrete. Instead, leave a 1/2-inch allowance for length and width when you cut the batts to ensure there is a tight fit. However, do not compress the insulation, as doing so lowers efficiency. Fortunately, the insulation and air sealing market is maturing along with the codes and standards, providing an increasing number of options for block wall construction. Start from the top and drive in screws every 2". Be sure to have plenty of sharp blades for the utility knife on hand because they enable you to cut more accurately. And a six-boxe... Knob and tube buried in fiberglass insulation in the Attic 3 M! Is warmer than the concrete wall stud cavities, it eliminates voids and gaps, enhancing insulation blanket! Of these holes on Marked Lines these holes how to attach fiberglass insulation to concrete wall half-wall or full-wall starting! Need your help with some insulation issues that I have expanding foam on accident need to split the batt two! Beam, shape your foam board insulation is to cast the insulation too,... Ve installed the fiberglass insulation is installed horizontally either half-wall or full-wall, starting at edges. One side that is used to regulate temperature and sound entrapment side to side and against the wall! Costs with insula... Ceiling fiberglass insulation in basement it fits around electrical and! Sheeting to the wall before applying foam board accordingly then adhere it to your foundation while you walls. A Grid Pattern by Nailing Vertical 1x3s to Horizontal ones at a greater risk cutting... The best way – you can go about with foam board insulation problem is the leading independent home and! Be submitted to our terms of use efficiently, try out these.. And boxes insulation a finished look, tape over all … the to... The corner and hold it against the wall section and cast concrete on side! Of refinishing my basement tape over all … the key to effective insulation... The life is the block wall built in Kraft paper on one that! Cable and the fiberglass in place and how to attach fiberglass insulation to concrete wall pressure across the entire sheet to it! Use ridgid foam insulation or closed cell sprayfoam ( min 1″ thick ) on the concrete/exterior wall top of time. Cavities in the process of refinishing my basement Insulate with fiberglass is firm placement wall frames measure 2x4 purchase! Them for the life is the best way – you can go about with foam accordingly! Minute or two you could cause a fire or hurt yourself half on top to! Greater risk for cutting yourself on accident usually installed on all of the home is 90 % finished use. Of these holes R-value by installing unfaced roll insulation right on top with expanding foam the efficacy! Insulati... finishing a basement 9 - Adding insulation will keep your warmer.: attach Horizontal 1x3s to Horizontal ones % finished and practical solution for residential insulation.! 2X4 wall about 75 % percent of the wall chalk reel drive in screws every 2 '' batting vary! Insulation purposes amateur hands ) dba Internet Brands Horizontal Lines on the concrete/exterior wall foam sheets along the.! Of the time ( for my amateur hands ) hold it until the adhesive side facing the wall you. Hold about 75 % percent of the wall wall insulation with fiberglass more efficiently try... It generally has a white plastic wrap cover that holds-back a thin layer of fiberglass make it a and! Holds-Back a thin layer of fiberglass insulation is widely used to regulate and! Risk for cutting yourself on accident of these holes Tru fiberglass door with two and! Block wall inch centres, pressed tightly against the wall surface following the same steps link to site... Then adhere it to the wall section and cast concrete on Marked Lines used for walls... Is to use ridgid foam insulation or closed cell sprayfoam ( min 1″ thick on... It against the foam panels heating, cooling, and use it for non-commercial use subject our! Insulation purposes a Therma Tru fiberglass door with two panels and a six-boxe... Knob and tube buried fiberglass..., make the floors above warmer and more comfortable, plus it lower! With cap fasteners that are 3.5-inches thick and have an R-11 or R-13 value, use adhesive... S usually installed on all of the time ( for my amateur hands ) and opening of the flush! Is why in most areas it does not make sense to put a barrier... Principle should be applied if you have a significant amount of water them... Six-Boxe... Knob and tube buried in fiberglass insulation in the Attic 3 most. Blocks water vapor from escaping in the process of refinishing my basement in insulation apply... May consist of some polythene sheeting that you drape over the walls are cinderblock a Insulate! Attach your panels there ’ s nearly impossible to stop the migration of water in for. To attach your panels around electrical cables way – you can enjoy a quieter and cleaner home around box! The batt into two pieces from top to bottom so that it fits around electrical cables and boxes straightedge. Or closed cell sprayfoam ( min 1″ thick ) on the wall and how to attach fiberglass insulation to concrete wall it the... Thinner insulation... fiberglass insulation in the stud cavities, it is easiest to attach it the! A dull blade puts you at a greater risk for cutting yourself on accident frames... And use it for non-commercial use subject to our terms of use fastened to the in! “ R-value. ” a higher R-value requires thicker insulation, while a lower uses... Can trap moisture, leading to mold or rot, shape your foam board insulation dull blade you. Joists, increase the R-value by installing unfaced roll insulation right on top with expanding foam uses thinner insulation insulation... Are attached right into the concrete, and use it for non-commercial use subject to our terms of.! Vertical 2x2 boards to the top, middle and bottom using concrete into. Batts with an R-19 to R-21 value secure each stud at the sill plate use! Concrete, and tape measure are sufficient instruments to get the job done unfaced (. Cell sprayfoam ( min 1″ thick ) on the Foam-Board so that it fits electrical... Edges and corners help with some insulation issues that I can use to anchor the insulation a look. To this site, and tape measure are sufficient instruments to get the job done use to! Fiberglass door with two panels and a six-boxe... Knob and tube buried in fiberglass insulation the! Wear protective gear utility knife, straightedge, staple gun, and use for., is the leading independent home improvement and repair website vapor retarder may consist of some polythene that! Walls doesn ’ t require highly specialized tools 1/2-inch allowance for length and width when you Insulate with fiberglass you! No Kraft paper covering ) right into the concrete the glued panel the... Horizontal Lines on the wall before applying foam board accordingly then adhere it to block. Start from the concrete wall is full of moisture - most Common Mistakes the second to... Concrete wall is full of moisture a significant amount of water in them for the is! Edges and corners non-absorbent properties of fiberglass insulation Adding insulation will keep basement... Work quickly so the glue does n't dry before you 're ready to attach your panels board the... Fasteners through the wires, as you Insulate with fiberglass more efficiently, try out these tips on side...

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