Speak to an expert on 01752 692 760, Can’t find the Help & Advice you need? We’ve answered our most commonly asked questions for you so you can get the information you need, including returns and how to use our site. Replies may also be deleted. Discussion. Chimney capping - Bodged? Obviously, this option is not suited to every chimney, such as shared or very large stacks. Placing a patio slab over the top of the chimney should only ever be done if there is some other form of ventilation in both the upper and lower halves of the chimney, such as ventilation bricks. If you wish to access our site please either upgrade Capping a chimney prohibits destruction on the inside from elements such as snow and rain. Everything you need to know about the lead alternatives to lead flashing. Roofing Superstore Wire Chimney Leaf Guard, Brewer Cowls 150mm to 250mm Metal Traditional Raincap, Brewer Cowls 150mm to 250mm Round Chimney Capper, Colt Cowls Econolid Chimney Cap - 150mm to 250mm, Brewer Cowls 150mm to 250mm Round Hook Bolt Fix Chimney Capper, Bespoke 8 Inch Chimney Capper Metal Chimney Cowl Round - Silver, Brewer Cowls 330mm x 330mm Square Chimney Capper, Colt Cowls Top Lid 3 Chimney Capper - 125mm to 250mm, Colt Cowls Econoguard Solid Fuel Birdguard - 150mm to 250mm, Colt Cowls High Top 316 Stainless Steel Birdguard - 170mm to 250mm. Home > Help & Advice > Maintain & Troubleshoot > Chimney Troubleshooting > Capping unused chimneys - flue ventilators UK Capping unused chimneys - flue ventilators UK Unused chimneys not only waste a lot of heat, they also pose a potential damp problem as well as being a cause of smoking fireplaces and stoves. Determining the proper size for a chimney cap requires measurement. These are metal mesh cylinders, with a solid metal lid on the top, that prevents sparks and embers from exiting the chimney, and potentially setting the ground or roof alight. What's the difference between Coroline and Onduline bitumen roof sheets? Here are the most common methods used by builders and other tradesman: Check out this website and read reviews of RATED roofing contractors. When the chimney top is open, it allows debris to fall into the chimney and build up, causing blockages. This Affordable Moss Killer Is Suitable for Patios and Driveways. Home Forums > How to... > Roofing and Guttering > Chimney Capping Slab. . There are, however, some problems which can occur because of a chimney topper, particularly involving wire mesh. Product Guide: Roofing Tools & Accessories, Help & Advice > Product guides > Roofing Tools & Accessories. CMOStores.com Limited is not responsible for the content of external sites. It is quite rare for a chimney to have a vent in the upper half of the stack so it would be better to install a breather cap or cowl. Message deleted by Mumsnet for breaking our Talk Guidelines. Address. Add message | Report | See all. The cap must be durable enough to keep these nuisances out. Weather-resistant flashing for roofs is traditionally made... Make your job easier with product guides and how-to project guides, plus keep up-to-date with the latest from cmostores.com. Learn more about Roofing Superstore, including what we stand for, how to shop with us and all about our delivery policy. If the chimney is still in use, the chimney cap needs to be of a design that provides enough ventilation for the fire to burn well and for the smoke to be taken up and out the chimney, whilst also protecting the chimney from water ingress, downdraughts, fire risk and blockages. It will also stop any birds or insects nesting inside the chimney stack or … You could go for an inflatable draught excluder, which will fit snugly inside your chimney. We had our internal chimneys removed about 10 years ago. Placing a patio slab over the top of the chimney should only ever be done if there is some other form of ventilation in both the upper and lower halves of the chimney, such as ventilation bricks. Do I need roof window planning permission? Here at Roofing Superstore, we have a number of chimney caps and chimney cowls available, from brands including Brewer Cowls and Colt Cowls, all at our famously competitive prices. You should then check that the top of the chimney is level all the way around, before placing a membrane flashing around the side, covering the top of the bricks and extending into the flue. without viewing the job it would be impossible to say what your problem is coulds be the flashing round the chimney, a loose tile, badly fitted underfelt hole in the capping, pointing on the chimney failing, or un vented chimney the longer you leave this the more problems the dampness will cause . Capping a chimney will create a barrier to prevent air from being sucked back into the chimney from outside, and ensure the fire performs effectively. Organisation. The mesh allows air to pass into and out of the chimney, whilst also preventing any animals or materials from entering the chimney space. If the chimney is not in use, the easiest thing to do is cap a chimney with something like a patio slab or roof tile, because no air movement will be required to keep the fire burning, and no smoke will need to pass through the chimney. Fit an 8-inch (20.3-cm) piece of square step flashing over the chimney's front corner. What makes them so... Table of contents: There are a number of different options available when capping a chimney, depending on whether the chimney is in use or not. No problem, speak to an expert on 01752 692 760, Nationwide Delivery Available On All Orders, UK's Largest Online Roofing Supplies Store. An open chimney on a roof acts as a potential entry point for rainwater, moisture and more. Email Address. How do I stop moss growing on shingles and tiles? Chimney capping; Customer description. Interlocking roof tiles have become a popular style over the years. But what are chimney caps and how do you cap off a chimney? Roofing Superstore® The chimney cap I'd build would be a reinforced sloped concrete slab that would overhang the edges of your stone chimney by about three inches on all sides. Not sure which chimney cap is best for you? Another form of a chimney cap is the spark arrestor. A wide variety of capping a chimney options are available to you, such as power source, function, and warranty. Read on to find out more about the benefits of chimney capping, and the different chimney caps available. If you need your chimney capped, or you would like the capping removed we can convert your chimney to allow for wood burners or fossil fuel fires with ease. Often these animals enter the chimney space, but then get stuck and are unable to leave, resulting in decomposing bodies, as well as insects such as flies and maggots. KPC has been producing precast concrete chimney caps as part of its standard product range almost since its inception. Take measurements for the length, width, and height of the chimney’s flues. they do not house the technology that allows our site to be safe and secure. Water and moisture can cause structural damage to the building, as well as the chimney. What are the different types of roof window blinds? Set the flashing aside. These chimney caps, or raincaps, come in a number of different colours to ensure that they blend in with your roof. However I Have Found This Chemical to be Much Stronger, The Gutter Hedgehog is Easy to Install and Keeps Leaves out of the Guttering, These Cheap Filters can Prevent Blockages in the Rainwater Downpipe, Flat Roof Cost Phone Icon. There are a number of options of chimney caps for chimneys that are still in use. A chimney cap is a covering for the top of your chimney, and it usually includes wire mesh. We’ve calculated that a chimney draught excluder can save you £17 per year – as well as 70kg of carbon dioxide emissions. Chimney Caps. Often, sparks and embers are released into the air from the chimney, and these have the potential to start fires, particularly in dry areas or on thatched roofs. Open chimneys can often appear to be a source of warmth and shelter for animals and birds, so they will often get blocked up with nests. Let us know if you liked the post. The slab is slightly shaped... Log in or Sign up. It all depends on whether you intend to restart the chimney at a later date and if the chimney is vented. After an old fire surround and hearth has been removed, the hole in the chimney breast can be bricked in to tidy up the wall. Additionally, moisture can enter the rooms via the chimney and fireplace, leading to damp and mould forming. Hi, I have an approx 600x850mm concrete type slab that sits on top of my chimney with the flue coming out the middle. Our site does not support these old browsers as TheFiresideShop Fri 05-Oct-12 16:32:39. Another option when capping a chimney that is no longer in use is to use a disused chimney cap, which is simply a terracotta or metal disk that fits over the top of the chimney pot easily and quickly. The chimney cap I’d build would be a reinforced, sloped concrete slab that would overhang the edges of your stone chimney by about 3 inches on all sides. If you no longer have an active chimney then it’s a good idea to cap off the top, this may improve the thermal efficiency of the home and you won’t have to worry about birds getting into the stack. Our site is closed to the public. Click to show/hide more information Brochure request. Some such as the Colt Top Cowl are designed for multi-use and come with a pre-fitted bird guard. Which lead code do I need for my project? The most simple chimney cap is also known as a raincap. Corsham Chimney capping protects unused chimneys from the elements, it is usually a stone or slate slab cut to fit the top of the chimney and cemented in place. This can reduce the efficiency of the fire, by reducing the amount of air and smoke that can pass out through the chimney but can also increase the risk of fires occurring outside of the home. google chimney capping cowl for something like this - just needs to keep the weather out but allow a bit of a flow - at a fraction of the price . Then measure across your flues to find the widest point. Or you might prefer a draught excluder made for the specific size of your chimney. If you’re looking for a good long term solution to capping a disused chimney its very hard to beat the C-Cap in my opinion. Declaration of Performance For all enquiries call 0333 999 2220. What type of plywood is used for roofing? It makes a great deal of sense to install a chimney cap, when you look at the benefits. It would have a special flashing under the poured concrete that would capture any water that might make it through the concrete cap. The first step is to ensure that the chimney is got ready for the cement cap. This will cut your heating bill right down instead of heating the street. Telephone Number. The key to capping the top of the chimney is to install a barrier that will be moisture and tamper resistant and will not be affected by environmental factors such as snow, wind and sunlight. There are a number of benefits to capping off a chimney because the chimney acts as a point of entry into the home or building. Need more Help & Advice? Place a small drop of caulk where the roof and chimney meet at the chimney corner. This chimney top is made in the USA and with a lifetime limited warranty which ought to put your mind at ease about the quality of the product.If you live in an especially windy or rainy area and are worried that any old chimney cap will not be able to handle the rough weather, you need a stainless steel top and the HY-C Shelter Bolt On Single Flue chimney cover is an excellent choice. Adding a chimney cap to the chimney top will prevent animals from entering the chimney, meaning that they will not get stuck and attract other insects to enter your home. http://www.bestcharlotteinspector.com Cracked chimney caps are pretty common as they are exposed to direct weather. A chimney cap is usually a steel or copper cap that comes in different shapes and colors and should be chosen based on the style and needs of the chimney. our quote (having new chimney pots) says 100£ per chimney, which includes labour + materials + VAT. Once you have a cowl or vent of some kind at the top of the chimney, it is still a good idea to install a vent in the lower half of the chimney to create an upward airflow that will prevent condensation but without causing loss of heat issues. You should sweep off as much of the excess mortar as you can using a hard-bristled brush. Resitrix Reinforced EPDM Membranes & Barriers, Fibreglass Roofing Components And Accessories. Remove any mortar which is loose, or has been previously used for a different chimney cap. What is external cladding and what does it does it do? Capping a chimney has it’s benefits if your no longer going to use it, the main benefit is the thermal efficiency it will give your home. Give us a call, send us an email or request a call back from our customer service team. Chimney Caps. Take The Chimney Down . Flue slabs sit above a stove to support the chimney breast and act as a starter for the flue. If you cap off the chimney top side you need to install one in there as well,basically you need to have an airflow through it,we used to take the pot/cowel off along with the flaunching, chop out a brick and replace with an airbrick and bed a paving slab top. How chimney caps are different from chimney cowls . What can I use to deter birds from my property? Corrapol Stormproof Polycarbonate Roof Sheets, Marlon ClickFix 1040 Polycarbonate Glazing System, Cut to Size Solid Polycarbonate Roof Sheets, Self Supporting Polycarbonate Roof Glazing System, How to install Vistalux corrugated PVC roof sheets. Remember – if you don’t allow for adequate ventilation you will most likely suffer from condensation in the chimney shaft and possible damp patches on the wall. Plus,, just in case you want to reinstate the gas fire in the future, don't remove the liner. Extend the tape measure to find the total combined length of all the flues. Capping a chimney involves the installation of a covering on the top of a chimney, blocking the chimney opening. Place the end of your tape measure against the side of the flue, which is the clay or metal tube coming out from the top of your chimney. Sign up today for a cash or credit account, exclusive discounts, rebates and rewards with a CMO Trade Account. Typically, the tradespeople who fit caps are roofers and chimney sweeps. Chimney caps can also act as spark arrestors. For all enquiries Call 0333 999 2220. Chimney caps and spark arrestors prevent these sparks and embers from passing out of the chimney space, therefore reducing the risk of fires being started. There are several options for you to consider. They’re also aesthetically pleasing for the top of the stove. Want More Information? Sign up for our newsletter to be first to know about offers, product deals, exclusive discounts and industry news. If the chimney is not in use, the easiest thing to do is cap a chimney with something like a patio slab or roof tile, because no air movement will be required to keep the fire burning, and no smoke will need to pass through the chimney. The builder had removed the pot from the external chimney on the roof and capped it with a grey building brick and mortar. 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