
Repairing a Torch Down Roof is relatively easy. Using the right “Tar”, you can almost fix any Torch Down Roof Do not use roofing cement or tar from Home Depot or a Hardware store Do not paint the roof with Silver Coating in the hope that it will seal the leaky area
What is the cost of a torch down roof replacement?
Torch down roofs typically cost between $7,000 and $14,000, with most homeowners paying about $10,400. Let’s break down the cost of torch down roofing to help you better calculate your total project budget.
What is torch down roofing and why use it?
- Water Resistance: The first job of any roof is to keep water out of the building below. ...
- Flexibility and Durability: The modified bitumen sheets expand and contract as the temperature changes without cracking or splitting. ...
- Lifespan: The lifespan of a torch down roof is one of its main selling points, at 15 to 20 years. ...
How to apply torch down roofing?
Torch Down Roof Application
- Attach insulation. Insulation is especially important in colder climates, but it’s an essential part of any flat or low-sloped roof system.
- Lay down a moisture barrier. On top of the insulation, your Bowie roofing contractor will lay down a vapor barrier. ...
- Install the overlay board. ...
- Apply the base sheet. ...
- Apply the cap sheet. ...
- Install flashing. ...
Does my roof need repair?
If your roof has been properly installed and is younger than 15 or 20 years old, it may get by with repairs rather than a full replacement. When in doubt, contact a licensed roofing contractor to get a professional opinion. For more... Get free, no-commitment estimates from professional roofing contractors near you.

How long does torch down roofing last?
12-15 yearsSheets are “torched down” so they adhere to the roof and seams are joined. These are well suited to most climates, though heavy rain and snowfall can compromise the life expectancy of torch-down roofing systems. On average, these roofs last 12-15 years and represent a great value for most buildings with flat roofs.
How do you patch a felt torch?
0:4520:24How to fix, repair, protect and seal a felt roof and flat roof using Everbuild ...YouTubeStart of suggested clipEnd of suggested clipAnd going in under the joins weather overlapping coming down. So again we used to a stationsMoreAnd going in under the joins weather overlapping coming down. So again we used to a stations blackjack. It's quite good stuff its design for sticking fells and to put it back on conceal. Something.
How do you fix a hole in a membrane roof?
2:554:22How to Patch a Leaking Rubber Roof | This Old House - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo when we put the contact cement on it it will stick to a real clean surface. All right lauren youMoreSo when we put the contact cement on it it will stick to a real clean surface. All right lauren you hold the patch back and i'll apply the rubber to rubber cement on the roof.
How long does a torch-on felt roof last?
between 15 and 25 yearsThough torch-on felt roofing is not the cheapest option available, the long-term value it offers makes it a smart, cost effective solution that requires little maintenance. Torch-on felt roofing can last anywhere between 15 and 25 years, depending on whether it's a 2 or 3-layer system.
How do you repair rotted roof felt?
0:245:27How to repair roofing felt under tiles - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt's a common problem is on the ends. It's mainly the ends will go first as you can see there's aMoreIt's a common problem is on the ends. It's mainly the ends will go first as you can see there's a bird nest in there. Um yeah and they do get pretty battered they get the most the weather down on the
What is the best adhesive for roof felt?
Answer: The Bostik Feltfix Bituminous Roof Felt Adhesive Black is a solvent based bitumen felt adhesive that is designed for bonding bitumen based roof felt to various roof materials including asphalt, existing roof felt and concrete.
Can you repair a membrane roof?
Install the Repair Patch Using a glue-down patch: Apply a single-ply EPDM adhesive to the back of the patch and to the roof surface in the patch area, following the manufacturer's instructions. Allow the adhesive to flash off until it is no longer tacky to the touch.
Is Flex Seal good for roof leaks?
Flex seal for rooftops is the ideal product to manage roof leaks. The sealant can be placed on the roof when it is leaking or has a leaking problem. Flex seal comes in a liquid form, making it easier to apply and works superbly. It protects the roof from rust stains, UV rays, and mildew growth.
Is Flex Seal compatible with EPDM roofing?
First of all, make sure your RV roof is compatible with Flex Seal products! Most of them will be because these sealants work with fiberglass, metal, EPDM rubber, and TPO. Unless your roof is made with some other material, you should be safe to use Flex Seal on it.
When should I replace my torch down roof?
The lifespan of a torch down roof is one of its main selling points, at 15 to 20 years. Torch down roofing is more long-lasting than some other types of flat roof systems. This is due to its flexibility in hot and cold temperatures, as well as its resistance to water damage.
Can you walk on a torch down roof?
The torch-on roofing is extremely durable. It has a superior strength that it can resist tears and punctures due to various external factors like walking on the surface. In relation to this, it's also low maintenance as you can leave it as is for many months without worrying about its condition.
Can you put new felt on old felt?
After removing any timber fascia boards, the first step should be removing any existing felt and inspecting your roof for any issues. These should be fixed before installing any new felt.
How do you touch on felt?
2:053:23How To Torch On Felt - YouTubeYouTubeStart of suggested clipEnd of suggested clipJust push it down with your hands. And it would stick to the existing. Felt push at the front makeMoreJust push it down with your hands. And it would stick to the existing. Felt push at the front make sure it's step right then throw any water getting underneath I felt.
Can you put felt on top of felt?
If you need to add another sheet of felt, then lay this next to the first sheet with a 5cm overlap. Again, nail down the felt. Next, cover your felt sheets with a thin layer of felt adhesive. You can then position the second layer of felt over the first.
Can you nail down torch on felt?
For garages and other larger garden or commercial buildings felt cannot be dry-fixed using nails and screws. Instead, the two methods which are most common are 'torching on' and applying with cold self-adhesive.
How do you finish felt edges?
To fix wavy edgesMore washing. Using a washboard or solar pool cover to provide the maximum agitation, wash and scrub just the edges. ... Roll with doweling. ... Furl the edges. ... Ironing the felt flat. ... Cut a straight edges around the felt. ... Felt areas to shrink them straight. ... Furl the edges of the felt. ... Pull the felt into shape.
What is the transition form of a chimney?
The transition form the metal cap to the chimney. We covered the chimney with a membrane and made the transition to the metal cap
Can you flash against parapet walls?
Parapet walls with half pipe or coping tiles are not easy do the flashing against. This is especially true when everyone have smeared tar under the lip of the tile. What we did in this case is we removed the ribs that forms the joint between two tiles to get a smooth surface.
Which roofing membrane is best for a roof?
The Torch Down Rubber Membrane is still by far the best roofing membrane and will outlast any other roofing membrane.
Can you smear tar all over seams?
Do not smear tar all over every seam and likely place you thought it could leak from
Can spider cracks be repaired?
Spider cracks in the surface – the entire surface will have these fine cracks, but it could be just in the beginning stages and you could still repair the roof
Can rubber membrane be repaired?
If there is evidence that the rubber membrane is pulling away from the wall or flashing due to its age, then it could still be repaired but at a considerable cost.
Can you paint a flat roof with silver coating?
Don’ts for flat roof repair on a Torch Down. Do not use roofing cement or tar from Home Depot or a Hardware store. Do not paint the roof with Silver Coa ting in the hope that it will seal the leaky area. Do not smear tar all over every seam and likely place you thought it could leak from.
How long does a modified bitumen roof last?
But keep in mind a smooth black modified bitumen roof is rated to last only 10 years, adn when silvercoated rated to last 12 years, byt the manufacturers. You can keep them going longer, but when not properly installed they don't even last that long.
How thick is a layer of roofing cement?
One thin layer of roofing cement 1/8" to 1/4" thick , 4=6" wide bisecting the seam. 6" strip of reinforcing cloth then another layer of roofing cement.
What is the membrane that starts at the roof surface and goes up and over the top of the walls?
Flashings = the membrane that starts at the roof surface and goes up and over the top of the walls.
How high should a curb be above a roof?
If I were your roofer, and again based on that photograph, I would be suggesting replacement of the skylight. The curb should be built up at least 8" above the height of the roof. Then inspect every inch of seam and each penetration and repair as necessary. Typical I would fire prime the roof surface to burn off the silver coat then patch with torch applied modified bitumen.
Why is my brick wall failing?
The "hidden" cause to that may the wall itself, The brickwork may be failing due to moisture intrusion thru the broken flashings. Trapped moisture and mortar do not mix well over time especially given the freeze thaw cycles.
Can you put cold adhesive on a roof?
When you say glued down, technically it "can" be with cold applied adhesive. BUT, with that coating the existing roof surface should be heavily primed or as Grumpy suggested, burn off the coating with a torch.
Is plywood waterproofing?
For the plywood, at the very least the face of the walls should be covered. NO SEALANT sandwiched between the wall and plywood. Your membrane is the waterproofing. The ply wood is simply and smooth sturdy base.
What is torch down roofing?
Torch down roofing (sometimes referred to as “torch on” roofing) is so named because it requires an open-flame propane torch. In this installation method, sheets of modified bitumen are rolled out onto the roof, and a roofing professional uses a hand-held propane torch to heat the material and adhere it to the surface. Once the layers reach the right temperature, seams are melted together to create a waterproof seal.
Why use a torch down roof?
A roofing torch requires the use of a gas torch with an open flame operating at extremely high temperatures and runs the risk of fire and burning the roofing professional. Safety training has reduced the occurrence of these accidents significantly. If you are investing in a torch down roof, you should ensure your roofing professional receives Certified Roofing Torch Applicator (CERTA) program safety training, available through the National Roofing Contractors Association (NRCA).
What is base sheet for torch down roofing?
Base sheet: This is the first layer of modified bitumen membrane. The base sheet for torch down roofing may be secured to the overlay board by either direct heat fusing, hot mopping or with adhesive.
How does a hot mopped roof work?
A hot mopped roof gets its name from its method of installation. After placing down base and felt layers, the roofing professionals pour liquid asphalt onto the roof and use a mop to spread it out. The asphalt then seals, creating a thick, waterproof and durable rooftop.
What is torch down cap sheet?
The cap sheet on a torch down roofing system has other excellent properties, including resistance to UV rays, and reflectivity to keep the building cool and energy efficient . If a torch down roofing system needs repair, it’s a relatively simple process. Patches of modified bitumen membrane may be added to the rip, gap, or broken seam.
What is APP in roofing?
The first polymer used for this purpose is Atactic Polypropylene (APP), which is a form of plastic, not rubber. APP torch down roofing membranes are flexible and respond well to both heating and cooling. Another polymer added to create modified bitumen roofing material is Styrene Butadiene Styrene (SBS) modified bitumen.
What is the membrane layer of a torch down roof made of?
The membrane layers of a torch down roof are made of an asphalt compound called bitumen that is modified with either rubber or plastic.
