Just wondering what the pros and cons are for felt or fibreglass when renewing a flat roof on a house extension.
Fibreglass flat roof pros and cons.
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First quote for area 19msq in fibre glass is 2700 which is more than the whole house cost to be re roofed ok it was a few years ago.
It has a very low slope between 1 4 to 1 2 inch per foot so that it drains water.
There s not enough height for a pitched roof we had the roof re covered about 8 years ago with a rubberised compound but it s not lasted.
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If you do select a flat roof you ought to check that its falls remain adequate for preventing standing water otherwise called ponding becoming a big issue.
Not only that but people have used boat fibreglass and the wrong expertise for installing the grp roofing.
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Therefore flat roofs sometimes need to handle standing water.
It s commonly used on extensions and garages and can be one of the most convenient and cost effective roofing solutions since it takes much less effort and labour to install than the alternates.
Flat roof requires maintenance for a small leak in the middle of ceiling.
The pros and cons.
In the early years fiberglass was still being used in the market but was unpopular.
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Grp roofs also known as glass reinforced polyester roofs fibreglass roofs or flat roofing is one of the most popular choices for a variety of reasons.
That is due to various challenges such as lack of proper installation expertise and use of boat fiberglass.
The trims that are made for the same roof are factory made and are made specifically for flat roofs.
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And the pros and cons of fibre glass really is the quality of the workmanship and the expeience of the fitter.
Flat roofs should also be sealed in a way that prevents water ingress.
Pros and cons of grp roofing.
It s on the sheltered side of the house i e doesn t get direct sun.
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Fiberglass shingles are a common shingle type across the country but that doesn t mean homeowners know much about them.
It s up to you to make the final decision to go with gpr.
But such a low slope holds snow and water much longer than a steeply pitched roof and therefore needs a very different material to stay watertight.
Luckily we now live in a time where the challenges are being addressed and the fibreglass used for a grp roof is specialised for roofing.
Flat roofing is not actually flat.
That s why we ve created a brief faq section to explore the pros and cons of fiberglass roofs and whether they re right for your house.