How are roofing costs estimated?

General Tips

The roof is one of the biggest investments you'll make in your home. Find out how the costs of installation of a new roof and repairs on existing roofs are determined.

Size: Roofers will calculate the exact size and dimensions of your roof to best estimate the amount of materials needed.

Slope of your roof: The steeper your roof is, the more materials will be needed to cover it.

Materials: The price for materials will depend on what kind of roofing materials you choose to have installed.

Roof access: If your roof is difficult to access, or if it is multiple stories, contractors may charge more.

Difficulty level: If your project is complex - for example, if you have chimneys, skylights and vents that roofers need to work around - the higher the cost could be.

Location: Where you live could determine your estimate.

See this article here & credit goes to http://www.news8000.com/lifestyle/how-are-roofing-costs-estimated/221573408

local.which.co.uk contacted Which? Local-recommended traders to find out how much standard jobs should cost and how quickly they should be completed. Armed with this information, you’ll feel confident about hiring traders and be better equipped to spot when things aren't right.

local.which.co.uk surveyed recommended roofers to find out how much you should spend on 13 common jobs and how long they should take to complete.

Trader tip: scaffolding

If extensive work is taking place on a property above one storey high then it’s likely that scaffolding will be required.

Scaffolding is expensive, and takes hours to put up and take down. This will increase the price of quotes.

Research methodology

In July 2012, we sent a survey to all Which? Local traders in the Roofers category with a rating of three stars or more and an email address.

20 roofing professionals responded to the survey. Using their experience and expertise, they answered questions about the cost of popular roofing jobs, and how long they should take to complete.

JobDetailsTypical price quotedPrice rangeTypical time to complete job
Survey conducted in July 2012
Replace fascias and soffits on a typical three-bed detached bungalowRemove wooden fascias and soffits. Replace with uVPC. Includes cost of labour and materials. Assuming no scaffolding needed.£1,900£1,250-£2,2252–5 days
Replace fascias and soffits on a typical three-bed detached, two-storey houseRemove wooden fascias and soffits. Replace with uVPC. Includes cost of labour, materials and scaffolding.£2,425£1,625-£3,0002–5 days
Replace lead flashing on chimneyn/a£340£300-£4501 day
Fix leaking roof on a two-bed bungalowReplace approx six roof tiles.n/a£80-£1891-3 hours
Fix leaking roof on three-bed, semi-detached, two storey houseReplace approx six roof tiles.n/a£88-£2001–3 hours
Replace whole roof on a two-bed bungalow – plain tilesRemove existing tiles, fit new plain tiles. Includes cost of labour, materials and scaffolding.£4,500£3,850-£5,8754-6 days
Replace whole roof on a three-bed, semi-detached, two-storey house – plain tilesRemove existing tiles, fit new plain tiles. Includes cost of labour and materials.£5,600£4,500-£7,0006–10 days
Replace whole roof on a four-bed, detached, two-storey house – plain tilesRemove existing tiles, fit new plain tiles. Includes cost of labour and materials.£6,750£5,500-£8,75010–14 days
Replace whole roof on a two-bed bungalow - slateRemove existing slate and replace with new.£4,800£4,000-£6,0005–10 days
Replace whole roof on a three-bed, semi-detached, two-storey house – slateRemove existing slate and replace with new.£6,250£5,000-£7,5008–12 days
Replace whole roof on a four-bed, detached, two-storey house – slateRemove existing slate and replace with new.£8,250£6,500-£12,00010–20 days
Flat roof on typical single garagePut a flat roof on existing single garage - rubber membrane.£900£840-£1,1501 day
Flat roof on conservatoryPut a flat roof on a conservatory measuring approx 10'10” x   

This has been taken from https://local.which.co.uk/advice/cost-price-information-roofers-roofing-jobs

Coconuts as option for roofing?

Growing interest in coconut cultivation seen after successful festival

From copra to piña coladas, the coconut has a wide range of uses. Now it is making an appearance as a possible roofing material.

A team of students and professors at the Institute of Technology of Colima (Itec) has developed an alternative roofing product made from the husk of the coconut.

During a first stage, the team replaced the commonly used fiberglass with coconut fiber, mixing it with a polyester resin to meld all the elements. After the product didn’t provide the expected results, the team decided instead to try coir, the fiber in the coconut’s outer husk.

Professor José Ricardo Moreno Peña explained that a key motivator in their research was creating a sustainable product. The coconut fiber is usually discarded as trash or burned, and is readily available throughout the state.

Early tests have shown that the uniquely-shaped sheets of roofing are strong but Moreno said more testing will determine their structural tolerance to determine if it can be used for building.

The product is also something that people can make themselves.

“Our purpose is to offer safe self-assembly alternatives for people who with their own work will be able to produce this sheet roofing. Our product will provide a shelter from the elements from the get-go, but we plan in future design stages to add a thermal resistance element,” said Moreno.

Once the technical feasibility and resilience of the sheets is satisfactorily tested, the team will focus on further improving the product.

Architecture and design student Joel Vargas Montes said the sheets are different from any others currently available on the market.

He said they are composed of pyramid-like structures that distribute the load throughout the sheet.

- See more at: http://mexiconewsdaily.com/news/coconuts-considered-as-option-for-roofing/#sthash.frDcTSbf.dpuf

This is in reference to: read this blog post here Mexicannewsdailyroofing-400x216

The recently-held Guyana Coconut Festival has been deemed a success as more people are expressing interest in cultivation that could boost the revival of the industry.

“A lot of people have been waiting on the opportunity to invest in coconut and that was what we actually wanted to get out of the festival,” Raymond Trotz, a producer and Chairman of the National Stakeholders Platform (NPS), told Stabroek News in an interview.

The festival, held from October 21 to October 23 under the theme ‘Awakening the Sleeping Giant,’ was part of the activities planned for Coconut Awareness Week.

This is in reference to: read this blog post here stabroeknews.com

Roof Protection 6 tips

6 Guided Tips For Roof Protection and Repair Tips

What indicates holes in flashing?

Holes in Flashing

Rainwater will penetrate wherever there's an opening, and there are a lot more than the average person realizes. Check out the underside of the roof for wetness or mold around points of penetration (plumbing vents, chimneys), wherever different roof planes intersect (valleys) and near dormers. *These are signs you've got holes in your flashing or that the flashing was installed wrong.

Flashing refers to thin pieces of impervious material installed to prevent the passage of water into a structure from a joint or as part of a weather resistant barrier (WRB) system.

 

How can I tell if my roofing material is defective?

Once rainwater breaks into your house, it can be very elusive. You may not find water directly below a penetration point. Keep in mind that water may travel sideways before passing through a joint in the roof sheathing, and may travel in a horizontal joint before falling on the floor or ceiling. If this happens, there may be a problem in the roofing material.

 

How much water does a roof collect in a 2 inch rainfall?

Of Roofs and Rainfall

One very obvious source of moisture and/or water in your basement is rainwater. During a hard 2 "- rainfall, a 1,000-square-foot roof will collect about 250 gallons of water, dying to get into you nice dry basement. If you have four downspouts, that averages out to about 63 gallons (240 l) per downspout location. Check your roof thoroughly for leaks and repair them as soon as possible. The longer you let the problem occur, the worse the damage will be.

 

What are the most common sources of a leaky roof?

Common Sources of Roof Leaks

Every time it rains, your roof is under attack from liquid invaders from the sky, seeking to breech your home's defenses and steal your right to be warm and dry (well, that's one way of looking at it). Rainwater is quick to exploit any weakness in the integrity of your roofing defense system. Roofing materials can wear out, break, rust, blow off, or otherwise fail and give moisture the opening it needs to do its damage. Most commonly rainwater finds its way through the roof by way of a chimney, plumbing vent, exhaust fan or skylight, flashings when the sealant joints around these penetrations crack and fail. Look for potential chinks in your home's armor in the following areas:

  • Old or defective shingles can curl and crack, allowing moisture intrusion. If old shingles aren't removed before new roof shingles are applied, it can reduce the life of the new roof. 
    • Chimney caps can crack allowing water inside the chimney. 
    • Gutter flashing can fail, forcing rainwater to set up camp between the roof and gutter. 
    • Flat or low pitched roofs have unique maintenance needs and are susceptible to water problems because they may not drain as quickly as roofs with a steeper pitch.

Flat roof drains or scuppers can clog and hold water on the roof, increasing the risk, not only of a leak, but of a possible collapse of the entire roof under the weight of the water. The price of dryness is eternal vigilance. Keep possible penetration points well sealed and maintained and you will have nothing to fear from raindrops falling on your roof. You don't need a guide to roof protection and repair to know that prevention is your best defense.

Where do I start looking for a leak.

 

Locating a Roof Leak

When it comes to leaking roofs, many homeowners are looking for leaks in all the wrong places. You no longer have to be one of them. The first and perhaps most obvious place to look for a roof leak is directly above the leak in a ceiling or exterior wall. Use a flashlight to inspect the attic floor over the leak while it's raining. If you see standing water, water stains, mold, wet insulation or other exposed insulation, you've found what you've been looking for.

What do I do about a leaky roof?

 

Preventing Roof Leak Damage

A leaky roof can be a pain forever, if not taken care of promptly. As soon as you spot water coming in, stains, or mold, take immediate action to limit damage. Hire a professional to nip it in the bud or go to the library and pick up a guide to roof protection and repair so you can handle it yourself. Locate the leak from inside and then take steps to control the damage until you can have a suitable outside inspection and repair done. Remember, your leaky roof won't get better with age and won't repair itself.

Written by: LifeTips link to blog post below.

Life Tips