Subscribe for unlimited access. Directs water flow away from your fascia board and decreases the risk of rotting. I doubt that that is the root of the problem though. 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. There are two types of sealants you can use to prevent leakage. . Existing insulation was R10 worth of black fiberglass between the rafters. There's some discoloration but no frank mold/rot thankfully. Measure 45-3/4 inch up the rafter from the cut end of the truss tail and draw a line along the trusses. For instance, the builders gap is necessary for roofing. 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. Part 5.6, Renovations and repair, discusses both interior and exterior retrofits, including the addition of a new roof. Have our wildlife experts come out and conduct a full exclusion of the pests. Answer (1 of 6): The way we always do it is to install the fascia first. 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. SawStop's Portable Tablesaw is Bigger and Better Than Before, Podcast 543: Affordable Flooring, Replacing Replacement Windows, and Low-Flow Fans, Podcast 537: Members-only AftershowConversation With Builder Sam Friesen, Balancing Density and Privacy in Los Angeles, Plus, get an extra 20% off with code GIFT20, Fine Homebuilding Issue #313 Online Highlights, The Fine Homebuilding Interview: James Metoyer, 10 Steps to Install Crown Molding on Cabinets, Choosing the Right Construction Tape for the Job, Expert insights on techniques and principles. This gap is caused when roof decking is stopped too short and is not flush with the fascia. In size, plywood sheathing comes in a four by 8 feet board or panel and ranges in thickness of ", ," and .". 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. The flashing shall be a minimum of 4 inches (102 mm) high and 4 inches (102 mm) wide. In a recent discussion with our local fire department, the fire inspector specifically noted that gaps associated with soffits, gables, and roofing are a serious fire hazard - anything that allows embers to enter your attic. Allow the caulk to dry before you apply paint. Drip edges are metal sheets, usually shaped like an "L," installed at the edge of the roof. A forum community dedicated to professional roofers and enthusiasts. A large gap can cause leakage and pest infestation. Drip edge flashing is a drainage channel between the fascia and the drip edge. Fasteners should be 3/8 inch from panel ends and 3/8 inch from panel edges (see hints below). Fasteners for asphalt shingles shall be galvanized steel, stainless steel, aluminum or copper roofing nails, minimum 12-gage [0.105 inch (3 mm)] shank with a minimum 3 / 8-inch-diameter (9.5 mm) head, complying with ASTM F1667, of a length to penetrate through the roofing materials and not less than 3 / 4 inch (19.1 mm) into the roof sheathing . How do I prevent this? Dec 9, 2009. Most roofs will be sheathed in plywood at least 3/8 inch thick. 1.7K 357K views 6 years ago Roof Framing We go in depth on how to install roof sheathing. HousingHow Roofing Should Roof Sheathing Be Flush With Fascia? I have a 1 inch gap between my gutter and fascia. Two feet is the general maximum length for a typical roof overhang. 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. A Proposed Solution to the Embodied Carbon Problem, A Look at State Premiers New Heat Pump Water Heater, Indoor Air Quality and Building Diagnostics. Finish your roofline and protect the fascia board with the Amerimax Home Products 10 ft. Musket Brown Aluminum Roof Apron Flashing. If water gets trapped behind the exterior walls, it can cause structural damage that you won't see right away. Hey all, I installed this new piece of fascia that I cut to size to match the original, but there's around a 1/2" gap between the fascia and the roof deck. Come join the discussion about the industry, safety, finishing, tools, machinery, projects, styles, scales, reviews, accessories, classifieds, and more! 2023 The Taunton Press, Inc. All rights reserved. Rough carpentry isn't like cabinet making. You need to know about the types of roof decking, the cost, and more. If you still have a leak, pull the corner boards free and check the overlapping flashing at the corner. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Warm the primary condensing surfaces, typically the interior faces of roof joists and roof sheathing. Use materials in the roof assembly that can safely store water, like solid wood, treated cellulose, and plywood. 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. Install a drip edge to keep water from leaking into the sheathing. Im concerned that this gap (with no mesh or anything) could let animals in. 2 it could be a vent tiles or where extraction fan goes through the roof. How do I fix the gap between my roof and fascia? Starter shingles installed incorrectly (or not at all). Water can also splash up from the interior of your gutters, constantly wetting your fascia. This gap is caused when roof decking is stopped too short and is not flush with the fascia. A fascia board is a thin longboard that goes along the bottom outside border of your roof and extends to the eaves. Position a speed square on the rafter edge. Failure to adhere to this code can result in a failure of a home inspection. Then keep the fascia board in place until the edge of the speed square aligns with the center of the fascia board. What is the maximum length of a roof overhang? 3 you can see usually a light where floor of the attic, meet roof this is the light from soffit /fascia area. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic. Also consider panel edge clips, or panels with tongue-and-groove edges. Depending on how the roofs join, you may have to cut a slot to work it in far enough. That said, overhangs can extend as far as 2 without the need for external supports. I'd bet a inadequate shingle overhang was the start of the prob, and no drip edge didn't help either. By creating an account, you agree to Pro Builder's terms of service and privacy policy. Should I remove the gutters and replace the fascia? The gap between the fascia and the roof decking is common in most homes. View more helpful strategies, here. Reduce indoor air humidity. Understanding building requirements can be challenging if you do not know how it works. The drainage channel between the roof deck and the fascia board improves water movement from the roof and prevents moisture damage. The best installation method is to leave a gap between the drip edge and the fascia board, about the width of a finger. Clearing the section will give you enough space to install the roof overhang. Limit air leakage into the attic from conditioned space. If there are rotten woods, remove and replace them with pressure-treated wood. How Far Should Roof Sheathing Overhang Fascia? Place the rafter tails against the old rafters such that of the new rafter extension overlaps the existing rafters. COPYRIGHT 2023 PROFESSIONAL BUILDER. Apply continuous air control membrane to existing roof . The shingles or drip edge should extend beyond the outer face of the fascia an inch or two. They should not extend more than this because shingles that are too long will corrode and break off. Should I continue with my plan to add the baffles or do I need to address the gap first? Numbers do, in fact, lie. If there is a 1/8 gap between the plank decking and the bottom of the roof, roof decking must be replaced by 2021. That'll prevent the bypass of the gutter and the drip edge by wind-driven rain. To me where fascia and roof deck meet its not totally uncommon to have a bit of a gap like 1/8 to a 1/4 inch in some places. Protects the roofline against rotting from winter weather like ice and snow. It is not uncommon to have a gap between your roof sheathing and fascia. Do not use silicone caulk if you are painting the fascia boards. Though it is uncommon, you should be concerned if the gap is more extensive than -inch. (Lets See), Does Roofing Felt Leak? Attach your fascia boards along with the new extension. The roof deck should overhang the fascia by 1/3 inches to 1/4 inches so you can comfortably install a drip edge between your fascia and the roof deck. The Fora platform includes forum software by XenForo. What is Builder's Gap? Sealing gap between window buck and sheathing. Note that I reconnected the exhaust vent before I left the attic for the day; it was solely to get access. 2023 The Taunton Press, Inc. All rights reserved. 5 Steps to Proper Roof Sheathing Installation Step 1: Always Check for a Level Nailing Surface. If you space the fascia level wrongly, it can lead to further problems like leakages in your roofing. 1. Apply caulk to nail holes also for added protection. 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. If your roofing contractor finds a gap larger than 1/8", the boards will need to be replaced after your old roof is torn off. The typical maximum overhang is 2 feet. Here are 10 of the most frequently-seen roofing mistakes: 1. With drip edge, the shingles should still extend out, but mainly for cosmetic reasons, to cover the drip edge. This wall has 4 inches of foil-faced polyisocyanurate insulating sheathing installed over a 2x6 wood frame wall. Pierce the seal of the tube with the tool in the caulking gun. 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. When pulling the existing fiberglass batts back from the eaves, I noticed daylight coming through a gap. The soffit is the flat panel that covers the underside of the rafters between the back of the fascia and the outside of the house wall. Lorem ipsum dolor sit amet lorem ipsum dolor sit amet lorem ipsum dolor sit amet. Don't look at me. M. Furnish in 8' or 10' lengths. The lack of spacing between the panels can cause buckling and extra roof replacement costs. 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. "I have learned so much thanks to the searchable articles on the FHB website. kidcharlemange | Posted in General Questions on March 13, 2021 12:25pm I started my attic air sealing and insulating project this morning. This won't delete the articles you've saved, just the list. This should take up the that gap!! When you dont seal the gaps in your roof, it can lead to leaks or rodent infestation through cracks in your wall. The horizontal board enclosing the ends of the rafter projections (or tails) is normally referred to as the _____ board. Your roofing sheathing should be flush with the fascia board to keep the fascia from rotting due to constant water contact. Gap between floor boards and foundation. I did not want to use gutter brackets and attach to the crown molding. JavaScript is disabled. Measure up the rafter 45-3/4 inch from the cut end of the truss tail and snap a line along the trusses. Continue moving around the house until every fascia board has been caulked and sealed. If fire is a concern, you'd presumably want to block it or cover with something like 1/8" metal screen. Avoid standing between framing, which can induce panel deflection. You may know the gap between the fascia board and the roof sheathing as a carpenter or builder. The modal window is a 'site map' of the most critical areas of the site. A gap between the roof sheathing and fascia looks bad and allows water to enter the fascia. Install roof drip edge along the eaves, add underlayment, then place drip edge along the gable end. This feature has been temporarily disabled during the beta site preview. Install eave drip edge flashings below underlayment and fasten to roof sheathing. Place the tube inside the caulking gun and attach the plunger. OSB is lightweight, relatively inexpensive, and strong enough to resist bending or breaking should someone walk on the roof. Fasten panels in rows across the width, continuing this sequence along the length of the panel. 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. Go through the contract, check for an error, and then call and inquire about the gap. Many do-it-yourselfers make this mistake before they even begin. Two popular sealants for this kind of project are caulk and expanding spray foam. Trusses or rafters should be shimmed as necessary to provide a level nailing surface. It is not unnatural to see a space between the fascia board and the sheathing. To prevent this from happening to your roofing, ensure to space your roof sheathing panels to allow proper ventilation. Jonathan Previous The drip edge is better, since it wraps around the top of the fascia and will prevent water from wicking back behind the fascia. If necessary, trim panel ends to center on framing. Ice and water shield on top, and on that one a metal roof. However, if you space it wrongly, it can cause leakage in your home. If you don't seal them properly, water can run off the roof and into your home. Also, consult your contractor to ensure you are on the right track. Make Your Rsum Shine With These Tips, Better Attic Insulation: Simple Solutions for 4 Common Problem Areas, Here Are the Winners of the 2023 NAHB Student Competition. Details are at Roof Drip Edge Improperly Installed: Behind Gutters Although, if it is a large gap, it can be dangerous to the house, as it will be susceptible to rodents and moisture. Metal Mesh in Drywall: All You Need To Know, Does Drywall Tape Need To Be Completely Covered? 4. Should there be a gap between roof sheathing and fascia? Leave the gutter for some minutes, allowing it to dry. Note that these are minimum code requirements, which have been found to be adequate under most normal circumstances. All spaces between your roof and walls must be properly sealed. Once you notice the gap, you can seal it with a caulking gun or install a drip edge if you cannot secure it with caulk. He installs an ice barrier (aka ice-and-water membrane), then drip edge, then the roofingweaving in step-flashing between each course. Continue this process and move your ladder if you have to until you have filled the gaps around the house. The roofer removed old roof on Thursday, put down new felt, but shingles didn't get delivered, and it snowed today (3"). Cut the tip on a tube of exterior, waterproof caulk at a 45-degree angle, advises The Exterminators. If your roof contractor handles your roofing project, ensure he installs a drip edge between the fascia and the roof sheathing. Old roof removed, new felt laid, 3" snow! How do I bridge this gap between drip edge and gutter. The best installation method is to leave a gap between the drip edge and the fascia board, about the width of a finger. Wood boards are also considered as solidly sheathed, In this way, the. When purchasing the caulk, it would be preferable to buy a colored caulk with the same color as your fascia. Starting with how to place the first row of sheathing, we cover fastening methods, the use of H. Most of the time, its fun, but some neighbors set, Read More Neighbors Fireworks Landing On My Roof (Must Read)Continue, Terrace and roof are two different and important terms that have a lot to do with the structure of a building. However, do not use a silicone caulk if you have not painted your fascia yet. If the top chords of trusses or rafters are warped or bowed, install blocking to straighten. At intermediate supports, fasten panels 12 inches on center. 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. Start at the end of a fascia board and caulk the corner edge where two boards meet. It is extremely important to have proper fastener spacing on all panels. Do not seal rotted wood. 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. I can confidently You must be a magazine subscriber to access this feature. How far should rafters overhang? 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. If you continue to use this site we will assume that you are happy with it. As a result, the drainage improves water flow and protects the roof from potential water damage. Roof deck sheathing Roof covering materials such as asphalt shingles must be installed on solidly sheathed roofs. Roof sheathing (or roof decking) is one of those elements. Live from the International Builders' Show, Josh Salinger discusses keeping water out of basements with this membrane from Delta-MS. Smooth the caulk bead with your finger and begin caulking the joint between the fascia board and the soffit (also known as the eave). Your roof sheathing should be the same level as your fascia board. Soffits and fascia provide the roof with a finished look.