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How Often Do Flat Roofs Need Replacing?

When a flat roof needs to be replaced is determined by a number of factors which includes the roof’s exposure to the weather, the condition and age of the roofing materials as well as the construction of the roof. However, with proper maintenance and regular inspection, they should be used for nothing less than 50 years. There are some commonly used types of flat roofs which includes Felt flat roof as well as a GRP flat roof.

Felt Flat Roof

The lifespan of a felt flat roof also varies depending on the quality and grade of the felt roof incorporated. This can make the roof last within the range of 2 to 20 years. More often than not, felt flat roofs are usually installed in such a way to keep the costs down which implies the grades of felts that are mostly used are the economical ones implying a very short lifespan.

In the event whereby a premium grade of felt is incorporated in constructing a roof by professional contractors, will be guaranteed by the manufacturer to last between 10 to 20 years.

One of the major causes of a short lifespan in felts is leaks which should be regularly inspected and repaired once identified. If not, the roof will gradually deteriorate and become a lot weaker due to the action of the sun. However, when a felt roof starts to leak, it’s usually a sign that’s approaching the end of its lifespan and a replacement should be taken into account.

GRP Flat Roof

The GRP flat roof or fibreglass flat roof usually comes with a manufacturer’s guarantee of 20 years and is expected to have a lifespan of a minimum of an additional 10 years.

Unlike felt roofs, they’re more resistant to leaks. However, they should also be regularly inspected for leaks which are caused mostly as a result of installation error rather than the GRP roofing approaching the end of its useful life. If the GRP roof repair does not totally resolve the leak, you should start considering a replacement.

What Is The Average Cost To Replace A Flat Roof?

Are you interested in knowing how much it costs to replace a flat roof? Here, you’ll discover a price breakdown for replacing flat roof. This includes a number of price determining factors such as materials costs as well as cost of labour and cost per square metre. All these enables you to make easy calculations so that you can determine a flat roof replacement estimate for your own project.

The type of flat roof that is the most common type is the garage roof and for the replacement of a single garage roof, the cost will fall between the range of £700 to £1000. Meanwhile for a double garage, you should expect a price increase of about 40 percent to 50 percent. The main price determinant that’s affecting the price of a new flat roof is the material incorporated in making it. For instance, lead or fibreglass are much more expensive when compared to felt roofs.

Generally, the cost of a flat roof replacement will fall within the range of £700 to £1300 varying largely due to the type of materials to be used by the roofer, the roof’s size as well as whether or not scaffolding would be used. Multiple flat roof applications also comes with different costs which includes:

• Felt roof ( £40 to £60 per square metre).

• Fibreglass roof ( £70to £90 per square metre ).

• Rubber roof ( £80 to £85 per square metre ).

• Lead bay roof ( £90 to £105 per square metre ).

• Fibreglass bay roof ( £40 to £60 per square metre ).

Several professional roofers work in pairs and to hire them you’re likely to be charged between £200 to £300 per day. The project can be completed with just a day’s work, but the installer should be back to make sure there are no leaks.

One of the most popular choices for roofing materials are roof slates. There is a number of advantages that a roof slate has, hey can be aesthetically pleasing, they can also increase the potential selling value of the house and many more. Slate is a sturdy and resilient material that delivers waterproofing physical characteristics to a pitched roof. Unlike other roof materials which absorb water slates do not. Therefore, slate is the most resistant towards freezing and water damage.

Find out the pitch of your roof

Before beginning with the fitting procedure, you need to figure out the pitch of your roof. The roof pitch commands how much overlap is essential with each slate. This has been made a lot easier than the early days with the advancement of technology.

Find out the required overlap

Once you’ve found out the exact pitch of your roof accurately, take a look at the slate producer’s description. Each manufacturer will propose the obligatory overlap in order to form a firm and safe slate roof.

Roll out the roof membrane

Firstly, guarantee your joists or trusses are clean of any sheards or old nails that could harm the membrane. You will now have to roll the chosen roofing membrane along the roof trusses. It is always wise to start from one of the bottom corners and keep rolling it along to the other corner.

Secure the roof membrane

Once the membrane has been moved out, use thump nails to protect one edge. You will now have to pull the membrane taut and carefully fix it into position. Do this before adding any nails across the membrane at points of intersection with the trusses for extra stability.

Batten placement

This is done to find the proper assignment of the battens. For this, you will need two full-sized slates along with an under eaves slate. Carefully position the battens on the top of the roof on the top of the overlay. Make sure not to fix them down since it will be easier to move them around and make any adjustments.

Why Do Roof Tiles Slip?

Despite being our first line of defence against the elements and covering the most valuable assets we possess, it’s shocking the reason why most roofs go unnoticed for years. However, when a damp patch suddenly appears on the ceiling or water starts to leak into our home, the condition of our roofing suddenly becomes of huge importance to homeowners.

In the UK, we get a fair share of harsh wind and heavy rainfall across the year which over time can lead to a plethora of roofing issues. One of the most obvious to identify is when roof tiles slip. If you’re also facing the same challenge, then you’ll most likely be interested in knowing the reason behind this occurrence. In this article, we’re going to take a look at some of the reasons why roof tiles slip.

Roof tiles can slip as a result of a corrosion of the nails that’s in place to secure your tiles to your roof. This happens especially during strong storms, whereby several roof tiles can be dislodged by rain and winds. If the affected tiles are just a few, then it may actually be a little issue to resolve. However, there are also times that the tiles slippage can be caused by a more serious issue. What’s more? You can also discover slipped roof tiles if the wood of your roof is corroded or weak. However, this applies a lot more to older homes than new or recent constructions. Any of the above reasons may be the main cause of your roof tiles slippage, but if you really want to know the exact cause for sure, you’ll have to call in a professional roof company to inspect your home.

You should inspect your roof twice a year, ideally after rain or snow, to see if it’s draining properly. Also in the Spring to check for damage that may of been caused over the winter months that will need to be put right before the next winter. Have an inspection carried out if you are unsure.

Replacement of roof tiles that have fractured, cracked or is missing is vital to avoid roof leaks and ceiling damage once rain and wind appear. Countering the problem swiftly by yourself is probable as long as it's only a few tiles. Charges for tile replacement can be expensive and fluctuate conditional on the company you hire.

The steps to replacing a tile are:

Ensure you have the right replacement tile as there are numerous different roof tiles on the market.

The most common types of roof tiles are concrete and terracotta. You must confirm that the tile is identical to your earlier tile or it may not work and can result in impairment even though you've tried to repair it. If you don't know what the tile is, ask the suggestion of a roofing supplier and they should be able to match it for you.

Get onto the roof.

It is only advisable to do this if the safety is guaranteed, using a steady ladder and maybe even using climbing ropes to protect you in case of a fall. If you don't possess a head for altitudes or you're sceptical about how safe it is for you to get on the roof, call in a professional.

Once you have securely gotten to the cracked tile, you'll want to somewhat lift the tiles that overlay the one to be detached. Do this by means of two pieces of timber to hold them up. Lift the broken tile over the baton with a brick trowel and gently slide it down.

Place your new tile on top of the brick trowel and inverse the steps to remove the tile.

Be certain to place the overlying tiles back into place.

Conduct a fast check across the roof to review any other possible damage. It is always advised to keep update on how the roof is holding out to keep an eye out for other tiles that might need replacing.

How To Repair Roof Leak

Asphalt shingles are the most popular roofing material options for most UK homes in recent times. Thanks to them, roof repair is now all about identifying the leak and sealing it the right way. If you’re a competent DIYer and confident enough to pull this off, then this should be done within a short period of time and saving you money as well. However, if you don’t have the confidence to pull this off, then calling on a professional roofer who can guarantee the best results will be your best bet. In this article, we’ll consider four simple steps you can take to repair an asphalt shingles roof.

✓ Locate the spot of the roof leak. Roof leaks are mostly made evident by water stains on the ceiling. Simply note the spot of this water stain, grab a good pair of binoculars, then go outside to identify the location of the roof leak. Search the area for any curls, cracks, missing shingles or anything that looks odd. Leaks can also occur at any spot where caulking and flashing have been affected or compromised.

✓ Secure curled shingles. To do this, simply brush on a generous amount of asphalt roofing cement to the underside of the shingle and press firmly to set.

✓ Replace damaged or missing shingles. In the event whereby the shingles are cracked, rotten or missing, your best bet would be to have them replaced. Simply remove the damaged shingle then slide in the new one under the one above and align it with those on either side. Once done, you can then secure it with 6d galvanized roofing nails at each corner. After completion, make sure you cover the nail heads with roof cements.

✓ Fix flashing. To do this, simply reseal joints with the help of a caulk gun loaded with roofing cement.

How much a flat roof costs to repair depends on a few factors. Is your flat roof on a garage or an extension? What is the flat roof made from? It’s always best to get a few quotes to compare prices, but we’ll give you a rough idea here. If your flat roof was installed in the 1990s or earlier, it’s likely that you’ll see some leaks or damage soon. Felt flat roofs used to be installed completely flat, which meant that water couldn’t run off. That means that water pools and can create moss and damp. Sun exposure can also damage the felt, causing damage and eventually holes that lead to leaks. If you’re lucky enough to have got away with just needing a flat roof repair, this should set you back an average of £100 per square metre. If your roof is sagging due to the weight of it putting pressure on the timber frame, you might need additional joists – which could cost anywhere between £1,000 and £2,000, depending on how many you need. But if the problem is due to the internal part of the roof system becoming waterlogged, you could be looking at over £5,000. If your roof is severely leaking or the timber joists are rotting, it might be more cost effective to replace your flat roof. If you keep forking out for repairs, it will eventually be cheaper just to replace the whole thing, which could cost around £2,000.