Friday, April 19, 2024
HomeBuildCan You Build A Roof Over An Existing Roof

Can You Build A Roof Over An Existing Roof

So Should You Get A Roof Over Existing Roof

Metal Roof Installation Over Existing Roof Using RoofingFoil To Reflect The Heat

When considering what type of roofing installation youll get its always best to weigh the benefits of each. While both a roof over existing roof and a tear off have their advantages, for most home owners the decision comes down to price. Depending on your budget, either of these methods can leave you with a new roof. Its always best to talk with a licensed and qualified contractor in your area. Be sure to fill in the form below to get a quote on your roofing project. You can alsovisit this link for a free quote.

Reroofing Versus A Roof Replacement: Which Is Better

While re-roofing or adding a new roof to an old roof is an excellent choice in many cases, there are times when this simply will not work for a home, and when a roof replacement is best. Roof decking damage should be addressed before new shingles are added, as one example, to prevent interior water leaks, structural damage, and mold growth.

Can You Shingle Over Existing Roof Shingles: Complete Guide

It is not uncommon for homeowners to roof over existing shingles this is called reroofing. New shingles can be installed or laid over the old ones when a new roof replacement comes instead of tearing off the existing roof.Heres what inspecting houses for decades have taught me:

You should only reroof over existing shingles if the roof decking is in good condition and there is presently only one layer of shingles on your roof. Adding more than two layers of shingles can cause the roof structure to sag under the weight. Its best to replace flashings when re-roofing.

On a typical day, a roof replacement would involve tearing off the old roof down to the decking to remain only with the roofs trusses or rafters, which sometimes need to be reinforced if damage or rot exists. In reroofing, none of this happens.

Quick Article Navigation

You May Like: How To Estimate A New Roof

Why Are Multiple Layers Of Shingles Bad

Multiple layers of shingles are bad because it makes the roof prone to cracks and breaks and leads to more renovation costs.During the reroofing process, the roofers will attach the ladder to the roofs edge, as they carry the heavy shingles one at a time and place them on the rooftop for easy access when they start roofing.

As this process goes on, it may put untold stains on the layers of the existing shingle, and something may crack or break somewhere, leading to more damage and uncertainty.

Let us agree that reroofing is taking the shorter but most uncertain route to a place. As much as your roof will have to be replaced, you will eventually incur a heightened renovation cost.

Do I Need A Permit To Add A Roof To An Existing Deck

38+ Cute Can You Build A Roof Over An Existing Deck for Your ...

You need a permit to put a roof over your deck. For one, it is a safety concern. Failure to properly fasten the roof to the house could lead to collapse and injury. Secondly, if you dont attach the roof to the house properly, you could invite significant water damage into your house, resulting in major damage.

Any project involving framing or adjusting existing house framing will require a permit, regardless of where it is on your property. However, unlike a shed, even the smallest addition to your existing house roof will require a permit.

Read Also: How To Repair Epdm Roofing

Benefits Of Building A Roof Over A Deck

  • Protection from the Element One of the top reasons for building a roof over a deck is for protection from the elements. Whether its the blazing sun, pouring rain or bad weather altogether, you can cover the deck area and still enjoy sitting outside and enjoying nature on a sunny or rainy day.
  • Unending Cookouts With a roof over a deck, you can enjoy barbecuing or grilling outdoors almost anytime you want. Even when the weather gets colder, youll still be able to grill burgers, chicken, ribs, brats or veggies and enjoy the taste of grilled food. Cooking time might be a tad longer, but its worth it to cook outside throughout the year.
  • Virtual Clothes Dryer If you hate using your dryer and watching your electric or gas meter spin, drying clothing under a covered deck roof is an excellent solution for hot or rainy days. You save on your energy bills when you dry clothes outside.
  • Cultivate your Plants When you want to start seedlings or just give your plants a taste of sheltered sun for growth, a covered deck is of significant benefit. While you enjoy the outdoors, your plants get tender loving care and daily sun, whether spring or summer.
  • What Can I Cover My Deck Floor With

    Interlocking deck tiles are a low-cost way to transform your deck into a safer, more attractive space while helping to protect the actual deck from wear and tear. Installing outdoor tile over a wood deck can help to protect you from splinters, while offering the deck protection from sun and wear and tear.

    Read Also: How Much To Roof 1000 Sq Ft House

    When Is Reroofing Not A Good Idea

    A professional and honest roofing contractor willand should always warn you if your roof is not a good candidate for an overlayor reroofing. That is what a roofing inspection is for and should always bedone before any action is taken on the roof.

    After a thorough inspection, a roofer will come to you with his report or a recommendation, explaining why your roof is or isnt up for reroofing. You can ask for a few roof estimates from different contractors just to be sure that you are doing the right thing, so that you can choose the best roofer for yourself.

    One of the main and most straightforward reasonswhen an overlay is not possible is when you dont have asphalt shingles. Installinga new roof over an existing one can only be done if you have shingles becauseyou can only put shingles over shingles. It is not possible to mix materials,nor to install a new layer over slate or wood tiles.

    Another reason is curling shingles, as you can onlyinstall a new layer if the first one is completely flat and level. Shingles cancurl over time due to different reasons, so if you still want to go with theoption of reroofing, you should first get to the bottom of this problem withyour roofer and replace the curling shingles.

    How To Build A Roof Over An Existing Deck

    How To Attach Home Addition Roof Framing To Existing Sloping Roof
  • Home Improvement
  • How To Build A Roof
  • Building a roof over an existing deck seems like an involved project. Its one that you could do yourself, but getting the opinion of a professional along with their help with such a project is probably a good idea. You want the work done quickly and efficiently, and pushing yourself can be unproductive whereas working with someone else could be the answer to getting the job done.

    Recommended Reading: Can You Put Metal Roof Over Two Layers Of Shingles

    Cut And Install Shingles

    Rip-cut the shingles for the first course so they butt up against the third course of existing shingles and are even with the front edge of the starter course. Their tab slots should not line up with the tab slots of the starter course, if there are any. Nail the shingles just above the tab slots.

    Editor’s Tip: The thicker the new shingle, the better it will hide any imperfections in the roofing underneath. It’s a good idea to use at least 40-year shingles architectural shingles are an even better choice.

    Inspect The Condition Of Your Current Roof

  • The condition of the existing roof is critical. The roof should be in sound condition with no unrepaired leaks.

    Stand at street level and look for any dips or sags in the roof. This can indicate problems with the wooden deck or rafters supporting it. Walk around the roof to see if there are any areas that feel spongy or soft. Soft spots are signs that your decking needs to be repaired or replaced. If there are numerous soft spots, it is typically best to avoid a layover. Look for shingles that have curled or cupped. You can trim or remove these shingles before applying a layover, but your new roof will not be as even-looking and may have problems sealing properly.

  • Recommended Reading: What Is The Least Expensive Metal Roof

    Reasons Why You Shouldnt Roof Over Old Shingles

  • A new roof probably wont lay down flat. It can be a struggle to get a good fit and lay shingles properly on an already-shingled and uneven roof.
  • Having a second layer over the top of an old roof will prevent roofing pros from seeing the whole picture. Is your underlayment actually in good shape? Is there water damage, holes, or mold that should be addressed? Without removing your existing shingles, the damage could go undetected and this could lead to serious problems in the future.
  • A new layer of shingles can be unnecessarily heavy for your home. Your roof is designed properly for your homes overall structure. Adding more weight can be detrimental to your entire home. For example, cracks in your walls can show up, and your foundation may not be able to withstand the extra weight, causing future issues to develop.
  • Its possible local building codes or HOA restrictions will not allow a second roof to be installed over top of an existing roof.
  • How To Build A Gable Roof Over An Existing Deck

    Building a gable roof over a deck is similar to building a slanted roof, with a few differences. First, you will need two more beams that attach from the house framing to the new beam youve installed that is supported by the new posts that will support the ends of the gable roof.

    The new beams will be two or three 2x pieces of lumber laminated and supported by joist hangers on the new beam and the ledger board on the house side. These new beams will support trusses, which will be held in place by brackets.

    Tying the new gable roof into the existing house may require you to remove some of the old roofing from the existing house. In some cases, the gable roof will be flush with a wall and not a roof, and this will make your life easier. Using flashing to join the house wall and new roof will help waterproof that joint, provided the flashing goes up and under the house siding.

    Read Also: How Many Feet In A Roofing Square

    Roofing Over An Existing Roof: What You Need To Know

    When you start noticing issues with your roof, or when it is nearing the end of its lifespan, it is probably time for some big decisions. You may wonder about the roofing options you have, and which one will be the best solution for you. The best thing to do then is to call in a professional roofer and discuss it with them, as they have both the needed expertise and experience to steer you in the right direction.

    If the condition of your roof is such that a fewrepairs will not suffice to get it back into shape, but it is still functionalenough that it doesnt need to be completely torn off and replaced, then youshould think about reroofing, i.e. installing a new roof over your existingone. Reroofing is not the same as roof replacement and there are certainconditions that your roof needs to satisfy in order to be a viable candidatefor reroofing.

    Keep reading to find out all you need to know aboutreroofing, including how it differs from a roof replacement and what its mainadvantages are.

    How Long Do Roof Decks Last

    Typically, roof decks can last anywhere from 10-30 years depending on several factors such as the type of roof material selected, the grade of lumber and fastenings used, and the amount of maintenance required.

    For instance, wood decks will typically require more maintenance than synthetic materials such as composite decks, including yearly refinishing and sealing. Keeping the deck clear of debris and cleaning the surface regularly can also help to extend its life.

    Other components such as railings, planks, and fasteners should also be checked periodically and repaired if needed. By considering these considerations, a well-built roof deck should last you many years.

    Also Check: Does A New Roof Add Value To A Home

    How To Build A Roof Over My Existing Deck

    Research suggests that 23% of new homes are being built with a deck. This is fantastic for those who enjoy outdoor living but what happens when the weather takes a turn for the worse?

    Your outdoor space should be a refuge thats why protecting your deck from the rain is so important.

    If youre asking how to build a roof over my existing deck, youre in the right place. This article will explain how you can add a sturdy, reliable roof to your pre-existing decking area.

    Tempered Glass Patio Roof

    Installing a Lean-to Roof on an existing Deck

    If you are looking for patio roof that allows you to get natural light as well as protecting you from the rain and snow, tempered glass will be your greatest bet.

    The transparency of the tempered glass allows you to stay in the patio while enjoying the view of the surrounding including what is over the roof. It is a bit pricey, though.

    Now you know how to attach a patio roof to an existing house and some patio roof ideas. Attaching a patio roof is not that hard, isnât it?

    But, you had better not install it by yourself. Having some assistance will be a terrific idea.

    You May Like: How To Install Solar Panels On Tile Roof

    Yes You Can Install A New Metal Roof Directly On Top Of An Old One

    Were going to come right out and say it: installing a new metal roof directly over an old one isnt our preferred way of going about it.

    That said, it isnt impossible, and there may be some instances where its an appropriate option!

    As part of metal reroofing, your new metal roof can be installed either after removing the existing roof, or directly on top of the existing roof.

    OK so it isnt quite that simple. In some cases, we may have to do extra work . That said, it is indeed possible.

    Now, why would we do something like that?

    Should I Invest In A Metal Roof Overlay

    A metal roof overlay is a great investment for any homeowner looking to boost their homes curb appeal, all while saving money by avoiding a complete roof tear-off. If youre looking to save on your electric bill, and increase the lifespan of your roof, a metal overlay is a great choice for you. On the contrary, if you already have too much added weight to your roof or one too many previous damages, an overlay may not be the best choice for your next roofing project.

    If youd like to know more about installing a metal roof over your pre-existing system, your best plan of action is to get in touch with a professional roofing company. A skilled roofing contractor will be able to help assist you with an inspection and let you know if an overlay is a possibility. If youre struggling to find the best contractor for the job, be sure to download The Top 10 Most Critical Questions You Want to Ask Your Potential Roofing Contractor.This checklist includes several different prompts to ask your roofer to prepare you to hold the company accountable for its quality of work and services when it comes to your roof overlay. In the meantime, if youre looking to learn more about roofing overlays and tear-offs, check out our article, Roof Overlay Vs. Roof Tear-Off: Which is Better? to better understand their key differences.

    At RoofCrafters, our mission is to provide job opportunities for others to thrive and grow while making a meaningful impact within our communities.

    You May Like: What Is The Best Moss Killer For Roofs

    How To Build Roof Over Deck

    A deck can transform your house, add extra living space outside, and boost the overall value of your home. The downside is that a deck isnt a permanent living space it is weather-dependent. Recently Ive seen some neighbors try to solve this problem with a roof. Ive considered it myself, but I wasnt sure exactly how to build a roof over a deck.

    To build a roof over a deck, you need to connect the new roof framing to the existing home. The easiest way is to use posts and beam construction with rafters connecting the beam to the home. Other ways involve removing a portion of the existing roof, adding trusses, and other framing options.

    In this article well cover all your options when it comes to adding a roof to your deck. While a deck roof entirely depends on how your current deck sits with your house, well also give a general overview of DIY deck room construction.

    Quick Navigation

    How Do You Build A Roof Over A Deck

    Roof Vents

    Step 1: Before you begin, make sure youre matching the house roof pitch angle and overhang for your roof. Step 2: Install post base connectors. These are used to attach the support posts to the frame of the deck.

    Can you build a roof over a patio?

    Where local building codes allow this practice, you can bolt a patio overheads posts directly to existing deck beams, joists, or other heavy structural members. Or, you can lag-screw through post bases and decking into the top of a deck joist or beam.

    How do you attach rafters to a deck?

    The ledger board is the point at which you will attach your rafters. It will attach directly to the side of your house. You will need to clear space for it by removing the siding. Note where the studs are and mark their locations. You will use those studs as anchor points to secure your ledger board.

    Recommended Reading: How To Create A Green Roof


    Most Popular

    How To Install Roof Drip Edge