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  • FREE Flat Roofing Quotes!

    Lower Cost Roofing for Extensions or Garages!

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    Flat Roofers

    Flat roofing has something of a reputation for being leaky and unreliable, but today there are plenty of effective flat roofing options which are durable and attractive. Flat roofing materials are now a lot more reliable and affordable, no longer constructed from layers of felt and asphalt with joins that leak over time. Old style flat felt roofs were well known for leaking after only five years, but modern flat roofs are expected to last for up to 30 years leak free! Flat roofs are usually a lower cost alternative to traditional pitched roofs, particularly common on extensions and garages.

    The term "Flat roof" is not strictly accurate as they are in fact built to have to a slight slope so water can still drain off. New single-ply waterproof membranes are the most commonly used construction method as it is strong, durable and sealed for at least 25-30 years. Flat roofs can be split into two categories; cold roofs and warm roofs. Cold roofs have a waterproof layer placed directly onto the roof deck with the insulation inside the roof, these type of roofs require ventilation to avoid condensation. Warm roofs are the type most used by reputable builders in residential properties, in this type of flat roof insulation is applied above the roof deck with waterproofing on top, this eliminates the need for ventilation as it keeps the roof warm avoiding condensation.

    Flat Roofing Materials

    Modern flat roofs are made up of a number of layers: the roof deck, the vapour control layer, the thermal layer, the waterproofing layer and the surface layer. Roof decks are made of metal, concrete, timber, composite materials or plywood. The vapour control Layer is inserted between the deck and the insulation and is made of polyethylene membrane, bitumen sheet or polymeric foil. The thermal layer is a cellular material like polystyrene or mineral wool which traps air to insulate.

    The waterproofing layer is made of thermoplastic, PVC, resin or rubber like materials , with the best options being those with no seams or joins to prevent leaks. The surface layer can be stone chippings, mineral finish or a hard resin finish to protect the waterproofing layer.

    Building Regulations for Flat Roofing

    Qualified roofing contractors will be able to advise on building and planning requirements, but the main guidelines include: the roof should drain to one or two edges using a slope of 1:80, the waterproofing should extend up the adjacent walls at least 150mm, all cold roofs must have ventilation, and roofs must be strong enough to walk on. You should always consult your local authority to see if planning permission is necessary, but in most cases this will only be required if you live in a listed building or conservation area.

    Flat Roof Replacement Cost

    The cost of replacing a flat garage or house roof will depend on the size of the roof and the materials used. Often flat roofs are made up of layers of felt and waterproof material and replaced with a flat roof membrane that is normally priced by the metre. Typical examples of flat roof replacement cost using membranes such as Permaroof are between £1100 and £3600 depending on the size and whether or not the roof insulation, fascias, lead flashing and soffits also need replacing.

    To get an exact price (and for roofing jobs it is always recommenced to always get a fixed price rather than accept an hourly rate), please use the "post your job" button on this page to have local roofers get in touch with you to arrange a survey and provide a no cost, no obligation quote in writing.

    A&W Roofing is a self employed roofing company. 16+ year experience Types of work undertaken vary but can do - change broken tiles/slates anything from 1 to full Reroofs -lead work -chimneys repointed - Grp fibre glassing ( cure it ) - flat roofi...

    Most recent homeowner review

    "Great job, really pleased, did everything we asked him to do, in a clean and professional way, would definitely recommend."

    Flat Roof
    By Peter on 17th Feb 2020
    • Joined Sep 2018
    • Established 2006
    • Flat Roof in Widnes
    • ID checked

    Able roofing and building have over 25 years in the construction trade from small jobs to new builds extensions etc . Brickwork jobs planning work from drawings to specific needs . All roof work from 1 slate to full re roofs flat roofs all work car...

    Most recent homeowner review

    "Fast response, quick execution, excellent price."

    Roof Installation/Removal
    By Gitte on 18th Mar 2020
    • Joined Sep 2018
    • Established 1998
    • Flat Roof in Accrington
    • ID checked
    Most recent homeowner review

    "The work was carried out quickly and we were happy."

    Chimney Building / Repair
    By Anna on 21st Nov 2019
    • Joined Nov 2018
    • Established 1970
    • Flat Roof in Coventry
    • ID checked

    Here at The Roofing Company we have extensive experience in the roofing industry, we cover all the following services at a fair price. - Flat roofing - Gutters and facials - Lead work - Complete new roofs including scaffolding - Cement work - Moss r...

    Most recent homeowner review

    "First rate contacted me by phone within 20 minutes Gary was round at my home . Explained what was wrong and showed him the problem. He said he could do the job next day which was a Friday (today) said would be between a certain..."

    Roof Repair
    By Michael on 22nd Mar 2019
    • Joined Aug 2016
    • Established 2009
    • Flat Roof in Cheshunt
    • ID checked

    Hello, my name is Bill from BRM Contractors. We cover all building, roofing and maintenance work to the highest standards. We are a business with over 13 years experience in the industry, our aim is to ensure that you get the best advice and affordab...

    Most recent homeowner review

    "I googled ‘I need a loft conversion’ and luckily BRM provided a quote and references! As a woman living alone I am delighted to say how pleased I am with the service, everything was done just how I wanted it and all the guys were..."

    Loft Conversion
    By Jacqueline on 29th Jun 2019
    • Joined Aug 2018
    • Established 2005
    • Flat Roof in Epping
    • ID checked

    HI and thanks for looking at my profile. I am a tradesmen with over 20years experience in property care and property maintenance all quotations and advice are free of charge.

    Most recent homeowner review

    "Paul from UK Property Care response and communication was very good from time my enquiry was put on MyJobQuote to actual work being done. On day of repair Paul kept me up to date with photos of progress for work being done. Work..."

    Slate & Tiled Roof
    By Sanjay on 2nd Mar 2020
    • Joined Jan 2019
    • Established 2010
    • Flat Roof in Nuneaton
    • ID checked

    I am an all round general builder with over 10years experience in the building trade. I'm a qualified brick layer/roofer but also cover all aspects of building. I'm friendly and professional and take pride in all my work completing all my j...

    Most recent homeowner review

    "Luke.s team carried out an acceptable enough standard for new fencing wiv concrete posts & travel boards . At a reasonable price. Thank you Luke"

    Garden Clearance
    By Linda on 6th May 2019
    • Joined Mar 2017
    • Flat Roof in Colchester
    • ID checked
    Most recent homeowner review

    "Turned up on time and did an excellent job replacing shed roof. The price was very reasonable and Michael Goddard was polite and offered a cheaper option for completing the job if I didn't want a complete replacement."

    By Gill on 21st Jan 2020
    • Joined Nov 2015
    • Established 1900
    • Flat Roof in Southampton
    • ID checked
    Most recent homeowner review

    "Despite the weather work was completed on time and as requested. Would use their services again."

    Garden Maintenance
    By John on 4th Jul 2017
    • Joined Aug 2016
    • Flat Roof in Wigan
    • ID checked

    Hello and welcome to fascias direct roofline upgrades! We are a local specialist roofline upgrades company and we have a full portfolio and many happy customers that you can see to ensure peace of mind. We are fully insured and all work is fully gua...

    Most recent homeowner review

    "i thought Lee was very good kept to his time schedual very clean worker very polite as were his co workers. I would recommend Lee to anyone."

    Fascias / Soffits / Cladding - Wooden
    By Bob on 1st Apr 2020

    Fascias direct roofline upgrades reply: Thankyou mrs goodman please keep yourself safe through covid 19 many thanks for your custom

    • Joined Dec 2016
    • Established 1999
    • Flat Roof in Doncaster
    • ID checked
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