"I have learned so much thanks to the searchable articles on the FHB website. It resembles real wood and particularly strong and stable for bearing heavy load. Allow the caulk to dry before you apply paint. Ridge Board: A horizontal timber or metal resting at the peak of the roof. Pierce the seal of the tube with the tool in the caulking gun. Homeowner here. Roof deck sheathing Roof covering materials such as asphalt shingles must be installed on solidly sheathed roofs. Fascia Boards are what hold your gutter system in place on your property. Also consider panel edge clips, or panels with tongue-and-groove edges. It not only takes you away from the same boring routine but gives you a chance to relax, Read More Rain Noise on a Caravan Roof Put a Stop to it (Complete Guide)Continue, In roof construction, it is important to get every measurement right. Moreover, if you will be installing it yourself or need advice on how to install it, here are some tips: Water can infiltrate your roof if you do not carefully seal and attach fascia boards. Thanks! There is no dedicated soffit ventilation - what was there before was just rough gaps between the fascia board and the brick. 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 . say that I expect to be a life-long subscriber." It is not uncommon to have a gap between your roof sheathing and fascia. When purchasing the caulk, it would be preferable to buy a colored caulk with the same color as your fascia. Jonathan Previous where its a shed its not really needed if you have soffit venting and a gable end vent. 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. Apply caulk to nail holes also for added protection. As you can see in the photo, it is flush with the rafter ends and little support is provided for the drip edge. Set a ladder up to gain access to the fascia boards. If the gap is say larger than a quarter inch, you might consider replacing the fascia. How to Install Sub-Fascia and Roof Sheathing - Pole Barn Shop Build Part 11 Country Family Homestead 13.9K subscribers Subscribe 260 36K views 3 years ago In this video I trim my truss tails. Should there be a gap between roof sheathing and fascia? Unless otherwise recommended by the sheathing manufacturer, cover the sheathing with shingle underlayment felt to minimize exposure to weather. Insert the tube into the caulking gun and push the plunger in. Drip edge installation might be an extra expense but can save you the cost of roofing repairs in the future. Go through the contract, check for an error, and then call and inquire about the gap. Directs water flow away from your fascia board and decreases the risk of rotting. Avoid standing between framing, which can induce panel deflection. 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 number can vary according to personal preference but you need at least 1 of overhang. This gap is caused when roof decking is stopped too short and is not flush with the fascia. A Proposed Solution to the Embodied Carbon Problem, A Look at State Premiers New Heat Pump Water Heater, Indoor Air Quality and Building Diagnostics. Screw the fascia board in place. If your roof contractor handles your roofing project, ensure he installs a drip edge between the fascia and the roof sheathing. Note that silicone caulks are water-proof sealants and are best for exterior application. For instance, the builders gap is necessary for roofing. Position a speed square on the rafter edge. But the excess heat and the trapped humidity from the wood will generate a steam effect, which will make the roof shingles dry halfway from the outside. 7. Install a drip edge to keep water from leaking into the sheathing. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic. Roof overhangs can extend farther than 2 feet, but beyond this length, they begin to lose structural integrity and require external supports. 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. This tip was captured live on Professional Remodeler's 2017 Model . Some gaps between your roof and the wall might be there for ventilation. Steeper roofs will have lighter loads per square foot. I did not want to use gutter brackets and attach to the crown molding. The steam effect will then cause just a side of the wood to dry, retaining moisture and leading to wood defects. 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. So, have a builders gap? The metal roof is made of galvanized aluminum or steel. It is ideal that soffit and fascia materials be installed before you place tiles or any other type of roofing material on the roof. Drip edge metal, valley flashing, dormer, chimney, and kickout flashing are types of roof flashing that shed water away from the connections between roofs, walls, chimneys, and other building assemblies roof valley flashing . A collection of one thousand construction details organized by climate and house part. Install intermediate fasteners, starting at panel edge. Safeguards your roof shingles from water damage, preventing damage to your shingles, fascia board, and roof sheathing. COPYRIGHT 2023 PROFESSIONAL BUILDER. 2023 The Taunton Press, Inc. All rights reserved. To get an idea of what I am talking about GOOGLE "soffit and fascia",and you will see typical installations. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. My plan was to install baffles for future soffit vents (house has gable vents only). Vent exhaust air from kitchens, baths, and laundry to the outdoors with vent pipes that run through the roof cavity or attic to roof ventilators. If water gets behind that, it would mean the the dormer valley is leaking, Roofing Talk - Professional Roofing Contractors Forum. The cavity is about an inch . and kept back from the edge one truss spacing. Queen Bee of Honey Dos is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and other affiliated sites. Or should I install a drip edge (as there is not one at this point)? During the installation of OSB, the rough surface side should be facing up. Well in order to clear this up, the minimum you can do per code is; " R905.2.8.3 Sidewall flashing. Subscribe for unlimited access. 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. Hence, sealing it can cause other issues. After the wood gets wet from moisture, the heat from the sun and the hot attic will dry up the wood. The Fora platform includes forum software by XenForo. The recommended maximum gap between roof sheathing boards for low-quality, 3-tab shingles is 1/4-inch. What is Builder's Gap? This how-to article is part of the Builder Tips series of publications from APA - The Engineered Wood Association. Install baffles providing a minimum of 1 inch of clear space between framing and/or under roof decking at eaves to ensure that ceiling or roof insulation does not block ventilation paths. Shingles should also extend slightly over the inside gutter edge to allow runoff of water into the gutter. (Beginners Guide), Rain Noise on a Caravan Roof Put a Stop to it (Complete Guide), Nail Plate Thickness: All You Need To Know), Roof Dry-In Inspection (Must Read This First), Why Dont Europeans Use Tar Shingles Roofs? The roof sheathing comes down and ends on top of the 1 x fascia. Starting with how to place the first row of sheathing, we cover fastening methods, the use of H. Though it is expensive, it can save you lots of money in the long run. If there is a 1/8 gap between the plank decking and the bottom of the roof, roof decking must be replaced by 2021. All spaces between your roof and walls must be properly sealed. Roof sheathing thickness: For improved performance, consider thicker panels. How Do You Fill a Gap Between the Roof and Wall? This can be done with a straight piece of lumber (6 feet to 10 feet Step 2: Provide Roof Ventilation According to Building Codes. In this way, the. (Must Read). Pierce the inner seal of the tube with the tool attached to the caulking gun. Then keep the fascia board in place until the edge of the speed square aligns with the center of the fascia board. 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. If water leaks into the exterior walls of your home, it will cause damage that will not be visible right away. In high-wind areas, more fasteners may be required. your inbox. Two feet is the general maximum length for a typical roof overhang. Part of me thinks this should be closed, if not for weather-proofing, then to keep insects from nesting in there. Existing insulation was R10 worth of black fiberglass between the rafters. Understanding building requirements can be challenging if you do not know how it works. It directs water flow from the top and protects your roof foundation from premature damage. If they were added late (after the last re-roof), the shingles would likely have fallen short. Shingle manufacturers specify a minimum overlap, usually in the range of 4 inches to 5 inches. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. In addition, fixing a drip edge to your roof sheathing, though expensive, can save you from frequent fascia repair. Fascia boards attach to rafter ends along the roof line. Filling the gaps between your roofing and the walls is not difficult if you have the required tools. Use galvanized roofing nails to nail the rafter extension to the old rafters. Smooth the caulk bead with your finger and begin caulking the joint between the fascia board and the soffit (also known as the eave). This site is protected by reCAPTCHA and the Google. The rafters and trusses are connected to the ridge board for a cohesive framework. The flashing helps guide runoff away from shingles and into the gutters. According to the American Plywood Association (APA), give a -inch to -inch spacing between your sheathing panel edge and the joint ends. I doubt that that is the root of the problem though. A metal drip edge will help protect the sheathing under the roof, but if it's installed too closely to the fascia board, it can still cause water to be drawn into the fascia. If it extends far from the edge, it will interfere with the flashing. Here are some of the tools you would need: What Happens When You Dont Seal Large Gaps in Your Roof? This is a gap between the fascia board (where the gutter is hung) and . kidcharlemange | Posted in General Questions on March 13, 2021 12:25pm I started my attic air sealing and insulating project this morning. This can be done with a straight piece of lumber (6 feet to 10 feet long) or a long carpenters level. Both parts provide a finished look and keep bugs and critters out of your attic, while soffits also play an important role in ventilating the attic. Furnish in 8' or 10' lengths. You must buy suitable plywood for the project. The shingles or drip edge should extend beyond the outer face of the fascia an inch or two. The drip edge flashing is non-corroding moisture protecting metal you can attach to your roofs edge to serve as water drainage for your roof. If you still have a leak, pull the corner boards free and check the overlapping flashing at the corner. Without a drip edge, water may end up beneath the shingles and may cause damage to various parts of the home. Therefore, seal the cracks as soon as you notice them or change the fascia board. Is a band joist the same as a rim joist? It is designed to protect the roof's sheathing from water damage caused by rain, snow, or ice being blown or rolling back beneath the edge of the shingles. View our Privacy Policy here. Continue moving around the house until every fascia board has been caulked and sealed. 3 you can see usually a light where floor of the attic, meet roof this is the light from soffit /fascia area. This feature has been temporarily disabled during the beta site preview. Re the fascia gap, it is normally installed tight, often the fascia is even installed up tight to the shingles, so that the roof sheathing is butted to the inside of the fascia. the application of sheathing at the roof eaves. When pulling the existing fiberglass batts back from the eaves, I noticed daylight coming through a gap. This is a gap between the fascia board (where the gutter is hung) and roof decking. Apply more caulk to the gap as needed to fill it completely. 2 . Also called drip edge flashing or D-metal, they serve a vital function by directing water away from the fascia and into the gutter. Solidly sheathed roofs include structural panels such as plywood and oriented strand board (OSB) with 1/8" gaps between panels as required by panel manufacturers. Remove wrinkles and flatten the surface of the shingle underlayment before installing asphalt or fiberglass shingles. On panels with a screened surface or skid-resistant coating, install panels with the non-skid surface up. 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. Built my daughter a bunkie and used the same 1 x 10 pine roofing boards on 2x4 rafters. Copyright 2023 GA Insulation LLC. Your roof overhang should extend at least 3/4 to 1 inch beyond your roof to keep water from running inside your walls. Protects the roofline against rotting from winter weather like ice and snow. Roof sheathing (or roof decking) is one of those elements. How far should rafters overhang? Get Pro Builder in your inbox. Plywood or OSB roof sheathing is also subject to sunlight, heat, and hot air in your attic space. 3. There are gable vents. Sheet decking (also known as sheathing) is essentially flat sheets of wood, both of which come in two types: OSB and plywood. Table R803.2.3.1 specifies the maximum fastener (Lets See), Does Roofing Felt Leak? 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. He installs an ice barrier (aka ice-and-water membrane), then drip edge, then the roofingweaving in step-flashing between each course. You might remember me from such forums as "my flashing on my roof suck" :). Measure the length of the gap and use the measurements to cut the size of wire mesh you need for the repair. Of course! That'll prevent the bypass of the gutter and the drip edge by wind-driven rain. Begin by removing the shingles down to the wood sheathing and slip a strip of adhesive ice-and-water barrier (available where roofing repair products are sold) under the soffit/main roof joint. Sounds like you definitely need to install some drip edge. Use temporary fasteners at corners if needed to square panel on framing. Measure and cut out the rafter extension from lumbers the same size as the old rafters on your roof. In the U.S., it is almost always composed of woodusually OSB (oriented strand board) or plywood. This is a gap between the fascia board (where the gutter is hung) and roof decking. This procedure keeps internal stress from accumulating in panels. They guard the wood decking and act as a secondary protective, Read More Can You Put Roofing Felt Over Shingles? I am planning to use a gutter that has a top on it (Leafguard) and I am not certain how this can be done any other way. 1. The gap is meant to help with airflow throughout the attic. Next, use a utility knife to cut the caulk tube tip at a 45 angle. Plank decking was the main type of decking used before the invention of plywood. For best appearance, use heavier weight shingles, or laminated or textured shingles. The modal window is a 'site map' of the most critical areas of the site. The roofers put a piece of cobra ridge vent between the soffit and lower roof deck and also a piece of aluminum flashing right behind the fascia then caulked everything up. (Things You Should Know)Continue, Knowing that knee walls are used to separate interior and exterior arrears in the attic is very important. Replace the old shingles and sheathing or use new replacements to cover the open side of the roof. 2 it could be a vent tiles or where extraction fan goes through the roof. . At the transition point between the overhang and the posts the roofline, the fascia brings more attention to the area. 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. I can confidently (Explained), Or Drywall For Ceiling (All You Need To Know), How To Overlap Or Hang Drywall On 45-Degree Corner? Is this a little problem or a big problem (i.e., is this going to ruin the roof deck, make the new felt worthless, or what?). Edge clip requirements depend on the relationship of the panel Span Rating to the actual distance between roof framing. My question is, what kind of caulk should I buy to seal all these exposed nails that are already rusting? How Do You Fill the Gap Between Fascia and Roof? Decking. Should I continue with my plan to add the baffles or do I need to address the gap first? Gap between fascia and sheathing 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. We use cookies to ensure that we give you the best experience on our website. Soffits and fascia provide the roof with a finished look. Fasteners should be driven flush with the panel surface. The two types of roof decking. 1. Weep holes provide ventilation as well as drainage. Re the fascia gap, it is normally installed tight, often the fascia is even installed up tight to the shingles, so that the roof sheathing is butted to the inside of the fascia. Also, ensure that your roofing constructor installs a drip edge. You can also apply the caulk in nail holes. Slowly move down the joint to apply a steady bead of caulk into the gap, instructs Ron Hazelton. Roof sheathing should be installed _____ to the rafters. Provided the fraction isn't smaller than the minimum offset (as it is on this roof), this is an aesthetic issue and is much . Notice that when the fascia is placed, the top edge of the fascia is even with the top of the sheathing. Fasteners should be 3/8 inch from panel ends and 3/8 inch from panel edges (see hints below). Youve read 2 premium stories this month. The horizontal board enclosing the ends of the rafter projections (or tails) is normally referred to as the _____ board. Plywood boards and oriented strand boards (OSB) often expand or contract during slight changes in moisture content. There are several principal causes of gutter back-flow: The gutters or roof drip edge have been improperly installed (or roof drip edge was improperly installed) so that the drip edge lower or vertical face is placed behind the gutter back wall rather than over the gutter trough. After framing the roof, sheathing overhang, cover the rafter extensions, the open sheathing, and three-tab shingles. A forum community dedicated to professional roofers and enthusiasts. 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. Attach your fascia boards along with the new extension. cornice. A large gap can cause leakage and pest infestation. fascia. If the top chords of trusses or rafters are warped or bowed, install blocking to straighten. Use a screw gun to nail the fascia board in place. This wall has 4 inches of foil-faced polyisocyanurate insulating sheathing installed over a 2x6 wood frame wall. Measure up the rafter 45-3/4 inch from the cut end of the truss tail and snap a line along the trusses. Start at the end of a fascia board and caulk the corner edge where two boards meet. Roof overhangs can extend farther than 2 feet, but beyond this length, they begin to lose structural integrity and require external support. Does roof sheathing need to be staggered? The problem: because the roof sags in places (its an old house) I will end up with in places an 1" to 1-1/4" gap between the top of the fascia board and the sheathing. I'd bet a inadequate shingle overhang was the start of the prob, and no drip edge didn't help either. There is really no way to prevent this. There's some discoloration but no frank mold/rot thankfully. I think that this practice differs by region though. Remove existing roofing and non-adhered underlayment to expose roof sheathing. Keep spreading the caulk to the gap, and remember to smoothen it. I did not want to use gutter brackets and attach to the crown molding. Wood boards are also considered as solidly sheathed, This gap is caused when roof decking is stopped too short and is not flush with the fascia. If you don't seal them properly, water can run off the roof and into your home. The holes you see lead to an air cavity that lies between the home's exterior sheathing and the bricks themselves. A roof system consists of several elements working together to protect the home. Clearing the section will give you enough space to install the roof overhang. To prevent this from happening to your roofing, ensure to space your roof sheathing panels to allow proper ventilation. Therefore, instead of sealing it, use a wire mesh to cover it. In view B, the sheathing overlaps the tail end of the rafter by the thickness of the fascia material. This type of decking is made up of elongated and rectangular . Apply continuous air control membrane to existing roof . The shingles should also overhang the drip edge 38 to 1/2 an inch. Like all slanted rooftops, plywood sheds moisture, though it is not waterproof, and when it comes in contact with water, it absorbs moisture. Use your finger to smoothen it after application. It's vital to lay down a "starter" section of shingles along the eaves; otherwise, water will invade the sheathing under the bottom shingles' cutouts. Continue caulking until the entire fascia board has been sealed. So seal the gaps in your fascia to prevent costly repairs later. 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. I didn't vote for either one of them. Smooth the caulk bead with your finger and begin caulking the joint between the fascia board and the soffit (also known as the eave). When placed on the eaves side of a roof, the drip edge will prevent capillary action water damage caused by surface tension. OSB is lightweight, relatively inexpensive, and strong enough to resist bending or breaking should someone walk on the roof. By the way, I am getting ready to put a new roof on before the gutters. Continue this process and move your ladder if you have to until you have filled the gaps around the house. If you do not leave spacing between the board joint ends, there will be no space to allow the panels free movement during expansion. Flashing against a vertical sidewall shall be by the step-flashing method. . 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. Hold a speed square or something similar on top of the rafter/truss tail. If there are rotten woods, remove and replace them with pressure-treated wood. Sep 14, 2013. the gap should only be about 1 1/2" on each side. 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. It will ensure the roof sheathing lines up with the top of the fascia center. Place the rafter tails against the old rafters such that of the new rafter extension overlaps the existing rafters. Next, install the shingles starting from the roofs edge, moving upwards till you have replaced all the shingles. Ensure to check around your house to seal all the gaps between your roof and the walls.