I have searched the internet and get conflicting information. Here are some of the tools you would need: What Happens When You Dont Seal Large Gaps in Your Roof? sheathing thickness is greater than 15/32 inches, roof sheathing is required to be fastened with ASTM F1667 RSRS-03 (2 " 0.131") nails or ASTM F1667 RSRS-04 (3" 0.120") nails. There are two ways you can keep reading: Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. They shrink and I have 1/4" gaps between them. Old roof removed, new felt laid, 3" snow! Does the gutter go under or over the flashing. There are gable vents. Roofing professional service GAF suggested that shingle edges extend 3/8- 3/4 (9 mm-19 mm) from the roof's edge. But if the roof is new, you should call your contractor to finish the job, especially if the job was incomplete. Soffits and fascia provide the roof with a finished look. This indicates the upper edge of the first row of roof sheathingleaving enough overhang that the subfascia and fascia will tuck neatly underneath when the time comes. But if installed prior to gutters, leave a small outset of flashing to fascia so gutters can be installed behind flashing without having to go around tweaking out, bending/distorting flashing out , making room for gutter. Some of these factors include: After considering the factors, inspect the roofing thoroughly and choose a solution that fits it. 01B5A749-4F47-4735-B676-2F4B10FDAA5B.jpeg, 7BEAECE4-C59F-49CF-B958-FA16FEB97A27.jpeg, 918BA900-91D2-4057-AEED-040D4615C271.jpeg, 19C5F469-4945-46B6-86FA-2864C5DB2C29.jpeg, B36BD8D9-967D-45E0-92EA-E0D8AACF0A0D.jpeg, C192BB90-4F59-46B8-8DDB-A837716AD0C8.jpeg. (Read This First)Continue, Gap Between Fascia and Plywood Roof Deck? Inspect the fascia boards for damaged areas.. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Existing insulation was R10 worth of black fiberglass between the rafters. Often, there's old, hardened caulk where the two pieces overlap at the inside corner. Dealing with dips and making clean overlaps Metal drip edge flashing is installed on the perimeter of a roof to direct . How far should rafters overhang? Should there be a gap between roof sheathing and fascia? I am replacing my exterior crown moldling with fascia board to provide a flat surface for gutters, which are not on the house at present. Measure 45-3/4 inch up the rafter from the cut end of the truss tail and draw a line along the trusses. If there are rotten woods, remove and replace them with pressure-treated wood. Starting with how to place the first row of sheathing, we cover fastening methods, the use of H. Also, consult your contractor to ensure you are on the right track. Continue caulking until the entire fascia board has been sealed. Rough carpentry isn't like cabinet making. 2 it could be a vent tiles or where extraction fan goes through the roof. We welcome your comments and suggestions. Don't look at me. DoItYourself.com, founded in 1995, is the leading independent home improvement and repair website. Answer (1 of 6): The way we always do it is to install the fascia first. In addition, fixing a drip edge to your roof sheathing, though expensive, can save you from frequent fascia repair. The roof sheathing should be right on the fascia, without going an inch beyond it. 3. I'd bet a inadequate shingle overhang was the start of the prob, and no drip edge didn't help either. US Home Prices Could Fall 20% in a 2023 Correction, Experts Say, Some COVID-Era Workplace Practices Are Easing, But Others Are Here to Stay, Measurement Fails in Business, Part II: Real-World Examples and Solutions, Built to Rent Is Booming, But Operational Challenges Loom for This Housing Sector, Award-Winning Builder Talks Post-Pandemic Home Design in NAHB Podcast, TechShield Radiant Barrier Roof Sheathing, GAF Cornell ThermaCal Nail Base Roof Insulation Panels. "I have learned so much thanks to the searchable articles on the FHB website. (Beginners Guide)Continue, A roof protects your home from the sun and the rain, so youll want to keep it around, right? Therefore, seal the cracks as soon as you notice them or change the fascia board. More commonly, they are 36 inches wide or more. Doing some looking around for the source, I noticed that the fascia board does not meet the end of the roof sheathing at the end of the rafters. Water often follows around your shingle edge and can wind up flowing down your fascia, behind your new roof and gutters. If you space the plywood boards, you will avoid this occurrence. When pulling the existing fiberglass batts back from the eaves, I noticed daylight coming through a gap. Staples are not recommended for roof sheathing attachment in high-wind areas. Furnish in 8' or 10' lengths. Apply continuous air control membrane to existing roof . Pull the fascia up or down until the corner of the speed square hits somewhere near the center of the top edge of the fascia, and nail the fascia in p. Basically I'm suing the roofer b/c they did a terrible job on my roof and I'm having to fix a lot of this on my own in the meantime. During the installation of OSB, the rough surface side should be facing up. A large gap can cause leakage and pest infestation. My plan was to install baffles for future soffit vents (house has gable vents only). This is the upper edge of the first row of roof sheathing, with enough overhang to allow the sub fascia and fascia to tuck neatly underneath when the time comes. I believe the leak to be water flowing off the shingles and behind the fascia. Gap between floor boards and foundation. Fasten panels with a minimum of 8d Common (0.131-inch by 2-1/2-inch) nails spaced a maximum of 6 inches on center at supported panel ends and edges. When placing your fascia, ensure that the edge of the fascia board is at the same level as the sheathing. Fascia boards attach to rafter ends along the roof line. The Fora platform includes forum software by XenForo. My garage is the same - big 1 x 10 roofing boards and I stripped the old shingles off, put the adhesive membrane on top then shingles. Notice that when the fascia is placed, the top edge of the fascia is even with the top of the sheathing. But at what point would it be a problem? Position a speed square on the rafter edge. Caulk about 2 feet of the joint and stop to smooth the bead with your finger. Warping will eventually lead to cracking shingles which can expose your roofing to more damage from water and moisture. Remove temporary fasteners at corners. I can confidently If you are applying the sealants yourself, avoid spraying the spray foam close to the lightbox and electric boxes. It is not unnatural to see a space between the fascia board and the sheathing. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Cut the tip on a tube of exterior, waterproof caulk at a 45-degree angle, advises The Exterminators. The shingles should also overhang the drip edge 38 to 1/2 an inch. By the way, I am getting ready to put a new roof on before the gutters. Because the roof shingles only cover the gap, squirrels and other pests can wriggle under the shingles and slip right inside! Of course! Once that is done, we will replace all insulation soiled by said pests. Do I need a gap between doorway framing and shelving? My question is, what kind of caulk should I buy to seal all these exposed nails that are already rusting? There is no dedicated soffit ventilation - what was there before was just rough gaps between the fascia board and the brick. Start with the ice . The best way is to install the roof drip edge only along the eaves first, then place ice-and-water barrier (in the snowbelt) or felt paper (underlayment) over the drip edge. Weep holes provide ventilation as well as drainage. If you don't seal them properly, water can run off the roof and into your home. Staggering panels by at least two supports is recommended. Do not seal rotted wood. This number can vary according to personal preference but you need at least 1 of overhang. Ensure your roofer installs a drip edge before installing the sheathing. However, this wall needs, Read More Knee Wall Height Code: All You Need To KnowContinue, Fireworks are almost synonymous with New Year and Fourth of July celebrations. Or should I install a drip edge (as there is not one at this point)? Does roof sheathing need to be staggered? I doubt that that is the root of the problem though. Furthermore, the 1x6 fascia board is not flush with the top of the 2x6 rafters, due to the angle cut of the rafter ends and the fact that the . The best installation method is to leave a gap between the drip edge and the fascia board, about the width of a finger. Without a drip edge, water may end up beneath the shingles and may cause damage to various parts of the home. Reduce indoor air humidity. Moreover, if you did not install a drip edge in your roofing, it could cause roof leakage. You can place the roof drip edge above the roofs cover, between the roof sheathing and the fascia. . Gap Between Roof Sheathing and Fascia If you did not install a drip edge flashing between your roof sheathing and the fascia board on your roof, then you should cover any gaps between your roof deck and the fascia board. Most roofs will be sheathed in plywood at least 3/8 inch thick. Gaps between the roof and an adjacent wall, like a second story or dormer, most likely need sealing up to prevent leaks, insulation issues, and rodent infestations. However, if you space it wrongly, it can cause leakage in your home. The drip edge doesn't just protect your shingles, it also helps protect your fascia board. Any ideas on how to close this gap. You must be a magazine subscriber to access this feature. The best installation method is to leave a gap between the drip edge and the fascia board, about the width of a finger. Measure and cut out the rafter extension from lumbers the same size as the old rafters on your roof. You should have at least 2 for an overhang on a metal roof. There's some discoloration but no frank mold/rot thankfully. A roof system consists of several elements working together to protect the home. Building requirements for roofing can be a bit of a hassle if you do not understand how it works. Start your subscription today and save up to 70%. For pitched roofs, wear skid-resistant shoes. Pierce the seal of the tube with the tool in the caulking gun. OSB is lightweight, relatively inexpensive, and strong enough to resist bending or breaking should someone walk on the roof. In this article, we will go over typically caulked areas on the exterior typical Northwest-style homes, and also areas that should never be sealed. In Todays Market, Who Has More Incentive to Move: Renters or Buyers? The sturdy and reliable, Read More Roof Dry-In Inspection (Must Read This First)Continue, Roofs represent more than just the uppermost covering of a building. In this way, the. I would be more concerned about a lack of drip edge than a small gap between fascia and roof deck. It will ensure the roof sheathing lines up with the top of the fascia center. Replace any cracked, rotted or missing siding, making sure the new piece overlaps the step flashing by at least 2 in. Start at the end of a fascia board and caulk the corner edge where two boards meet. Attach your fascia boards along with the new extension. Large Gap Between Wall Sheathing Panels OK? You can also apply the caulk in nail holes. 1 thas the roof has a felt a toll ? The steam effect will then cause just a side of the wood to dry, retaining moisture and leading to wood defects. Check building code requirements for installation of panel edge clips. (Explained), Or Drywall For Ceiling (All You Need To Know), How To Overlap Or Hang Drywall On 45-Degree Corner? Next, install the shingles starting from the roofs edge, moving upwards till you have replaced all the shingles. Fix a Gap Between the Baseboard and the Wall, How to Caulk a Large Gap Between Tub and Tile. Net free ventilation area may be reduced to a minimum of 480 square inches for each 1,000 square feet (1/300th) when certain building code provisions are met (see Section R806.2 of the 2012 International Residential Code or Section 1203.2 of the 2012 International Building Code for more details). The recommended maximum gap between roof sheathing boards for low-quality, 3-tab shingles is 1/4-inch. Also consider panel edge clips, or panels with tongue-and-groove edges. 3,870. Thanks for the follow-up response. If you space the fascia level wrongly, it can lead to further problems like leakages in your roofing. Second, the water vapor impermeability of the foam sheathing has to be dealt with. Go through the contract, check for an error, and then call and inquire about the gap. What kind of caulk to buy to seal exposed nails on flashing? 6. If the sheathing goes all the way to the soffit and does not extend past the face of the soffit, Install a drip edge with a long leg from the outside. Is a band joist the same as a rim joist? (and scroll down to see more details on each, with installation hints and tips, below), Step 1: Check the nailing surface is level, Step 2: Ventilate the roof according to current building codes, Step 3: Properly fasten panels (includingfastening and spacing hints), Step 4: Cover roof sheathing with shingle underlayment felt, Step 5: Install shingles according to manufacturer recommendations. By creating an account, you agree to Pro Builder's terms of service and privacy policy. Limit air leakage into the attic from conditioned space. Here are 10 of the most frequently-seen roofing mistakes: 1. Decking. With the attic backto new, we will install drip edges and close any holes so that squirrels and any other pest will not have a place to enter your home. Significant unsealed gaps can also cause molds on your walls. Starter shingles installed incorrectly (or not at all). How long can an overhang be? Use your finger to smoothen it after application. How Do You Fill the Gap Between Fascia and Roof? There is really no way to prevent this. There are some reasons why there are gaps between your roof and wall. Hope the shingle overhang is enough to cover the newly installed drip edge. The roofer removed old roof on Thursday, put down new felt, but shingles didn't get delivered, and it snowed today (3"). Many do-it-yourselfers make this mistake before they even begin. by Bob | Aug 29, 2017 . The rafters and trusses are connected to the ridge board for a cohesive framework. Provided the fraction isn't smaller than the minimum offset (as it is on this roof), this is an aesthetic issue and is much . Plywood is a bit more expensive, but is usually stronger and is often selected in cases where the roof covering is heavier, such as for slate, clay, or concrete tile roofs. Screw the fascia board in place. But if an opening is more expansive than a quarter-inch, there might be a problem with the roofing. But if you do not space the panels, the plywood sheathing will curve to get to a particular radius. 1. Ridge Board: A horizontal timber or metal resting at the peak of the roof. (Lets See), Does Roofing Felt Leak? What would be wrong with putting the gutter right over the flashing that extends down the fascia and screwing the gutter through the flashing to the fascia. When purchasing the caulk, it would be preferable to buy a colored caulk with the same color as your fascia. In other words, caulking is applied where moisture would otherwise penetrate and causing leaks and deterioration. This will protect a roof from most types of damage. The flashing was added after all the shingles were up so it's wedged between the fascia and the board behind the fascia and bends inward toward the wall sitting on top of . Should There Be a Gap Between Roof Sheathing and Fascia? A caulking gun and exterior waterproof caulk are the primary items you need to seal your fascia and keep water and insects out of your home. This will protect a roof from most types of damage. If there is a 1/8 gap between the plank decking and the bottom of the roof, roof decking must be replaced by 2021. These mold growths can leave dirty brown, black stains on your walls. The flashing shall be a minimum of 4 inches (102 mm) high and 4 inches (102 mm) wide. Although the dimensions of metal roofs can vary depending on the material the panels are made from, both metals are shaped into two, They can make the overhang of the main roof wide enough to protect them They can integrate a gable roof overhang or roof crickets with the main roof to protect them They can attach a smaller roof to the wall above every door or window They can create a recessed entry, in which doors are set back from the exterior plane of the wall. If water gets behind that, it would mean the the dormer valley is leaking, Roofing Talk - Professional Roofing Contractors Forum. Gap between fascia and roof sheathing - need sealing? The drainage channel between the roof deck and the fascia board improves water movement from the roof and prevents moisture damage. Here is a list of some of the top roofing companies in the United States for commercial and residential property owners looking for a roof certification or roof inspection. Drip edge installation might be an extra expense but can save you the cost of roofing repairs in the future. The wood furring acts as the nail base for the fiber-cement cladding. (Beginners Guide)Continue, We all like vacations. A gap between the fascia and plywood roof deck is unnecessary. (Must Read), Cost To Build Garage With Rooftop Deck? You may freely link to this site, and use it for non-commercial use subject to our terms of use. Moreover, the air and moisture from the gaps can increase the humidity in the house, which will reduce the insulation. Come join the discussion about the industry, safety, finishing, tools, machinery, projects, styles, scales, reviews, accessories, classifieds, and more! Follow these 5 simple construction steps when installing roof sheathing: (and scroll down to see more details on each, with installation hints and tips, below) Step 1: Check the nailing surface is level Step 2: Ventilate the roof according to current building codes Step 3: Properly fasten panels (including fastening and spacing hints) Although, if it is a large gap, it can be dangerous to the house, as it will be susceptible to rodents and moisture. Flashing against a vertical sidewall shall be by the step-flashing method. Move to the next fascia board and repeat Step 3 to caulk the entire board and the corner joints. On the other hand, the spray foams are for smaller gaps of about six inches. This is a gap between the fascia board (where the gutter is hung) and . Note that I reconnected the exhaust vent before I left the attic for the day; it was solely to get access. The shingles should also overhang the drip edge 38 to 1/2 an inch. This tip was captured live on Professional Remodeler's 2017 Model . If your roofing is new, contact your roofing contractor and relay the issue to him when you notice the defect. To my way of thinking, the sheathing should overlap the rafters by the thickness of, and possibly even rest on top of, the fascia board. The recommended maximum gap between roof sheathing boards for low-quality, 3-tab shingles is 1/4-inch. APA - The Engineered Wood Associationhas introducedthe seventh article in its Builder Tips series of publications: Plywood and OSB are ideal materials for roof sheathing systems ranging from simple single-family residences to large commercial buildings. This procedure keeps internal stress from accumulating in panels. They should not extend more than this because shingles that are too long will corrode and break off. I started my attic air sealing and insulating project this morning. At the end of the vertical sidewall the step flashing shall be turned out in a . Plywood boards and oriented strand boards (OSB) often expand or contract during slight changes in moisture content. A gap between the wall and soffit may indicate _____. Remove wrinkles and flatten the surface of the shingle underlayment before installing asphalt or fiberglass shingles. (Read This First). Begin at the edge of the fascia board to apply the caulk. Replace the old shingles and sheathing or use new replacements to cover the open side of the roof. Lorem ipsum dolor sit amet lorem ipsum dolor sit amet lorem ipsum dolor sit amet. You may know the gap between the fascia board and the roof sheathing as a carpenter or builder. Subscribe for unlimited access. Overhangs wanted for shading should be minimally 24 inches. The RSRS designation indicates the fastener is a ring shank roof sheathing nail. However, if there is a space between the roof sheathing and the fascia, you might have to install a drip edge above the fascia to protect fascia from moisture. However, this gap is the perfect place for pests and unwanted wildlife to enter your home. A forum community dedicated to professional roofers and enthusiasts. Use a chalk line or straight edge to align fasteners on framing. The gap is meant to help with airflow throughout the attic. 2 . Well in order to clear this up, the minimum you can do per code is; " R905.2.8.3 Sidewall flashing.