Flat roof construction explained

Flat roof construction can be complicated. No roof should be completely flat. A flat roof should always drain towards a gutter or outlet.

A roof is considered a flat roof if it has a pitch of 10 degrees or less. Most flat roofs are Known to be problematic

and high maintenance. But with new innovations in waterproofing material such as

GRP fiberglass from CURE-IT or TOPSEAL flat roofing has dramatically improved with manufacture guarantees from 20-years plus pictured

Other options include EPDM rubber roofing from Rubber bond which is a great roof for larger areas like supermarkets or industrial units but I prefer a liquid system like GRP for smaller domestic roofs which tend to have lots of detail such as, soil pipes. up-stands. and parapet walls,

Another thing to consider is,

Warm roof OR Cold roof

A warm flat roof is the best option in my opinion providing there is enough room for 100mm of insulation above the joists. pictured

warm roof construction

flat roof construction cumbria

In most flat roof constructions, there’s not much room to play with. You just don’t have the height needed for the insulation. some flat roofs will have parapet walls. Coping stone edging. Balcony doors or windows. with only 50mm up stands. as a result, the insulation must go underneath with a ventilation gap under the decking to eliminate the risk of condensation consequently, Condensation is a problem,

And can be a major problem with flat roofs. Not many cold roof constructions have enough vents for air movement between the joists you need to vent the moist air.

This is not the case with a warm roof.

warm roofs will have a thermal insulation layer above the structure with no cold areas for the warm air to condense.

therefore, theres no need for vents in this type of construction. my advice for your flat roof is a GRP fiberglass system with a 100mm insulation warm roof,

Abbey Roofing Cumbria

4.6

Lee Preston

11:26 12 May 19

Looks great, top workmanship, efficiently done and in a short time!

Audr

08:16 25 Apr 18

Prompt response, arrived to look at job when he said, gave a thorough account of what needed done, we agreed a price. The next fine day he arrived early with another worker and job done before end of day. Prompt, efficient, professional and reliable. My old cast iron guttering now looks like new and doesn't leak....hurray! Thanks James.

james thomas

17:48 08 Mar 18

I have used James and his roof firm twice now and have had fantastic service each time. He is very quick to provide advice and all his work is timely and of a great standard . I would happily recommend and will be using him again in future .

arron weaver

15:01 28 Oct 16

Great price, no hidden costs, professional and friendly service, the results were simply stunning. would recommend to anyone. Thank you to all the team. Great work!

Michael Seidelmann

14:56 14 Oct 16

Jim and his team have been carrying out several jobs at our cottage, including re-roofing and guttering. We are delighted with both the level of service and the quality of work. Happy to recommend.

Ed Hagerty

19:31 13 Oct 16

We’ve been restoring a house in Cumbria and over the years we’ve had tradespeople from across the spectrum. I can comfortably say that Jim and his team are in the very top of the list in terms of quality, price and service. They did a flat roof for us, some lead work and a variety of other external work, all of the highest quality. If Jim provides the service, you need look nowhere else. We’d trust him with any job, large or small.

Katherine Massey

14:11 26 Mar 15

Jim and Chris recently carried out outstanding work to our fibreglass roof on a listed building. We were delighted with the standard of workmanship, service, communication and the 25 year guarantee. The work was carried out in a timely and professional manner and was also reasonable in terms of cost. We were lucky to get some dry weather and guys that really know what they are doing. Thanks Jim, much appreciated! I will recommend you to family, friends and anyone I come across!

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