http://www.roofing.com/resources/ 2009-11-20T22:35:52+00:00 http://www.roofing.com/resources/ http://www.roofing.com/resources/lib/images/favicon.ico text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/0-9?rev=1197511845 Roofing Knowledge Base 0-9 text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/a-d?rev=1197511845 Roofing Knowledge Base A-D Abrasion resistance - the ability to resist being worn away by contact with another moving, abrasive surface, such as foot traffic, mechanical equipment, wind-blown particles, etc. Asbestos - a group of natural, fibrous, impure silicate materials. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/community_wiki?rev=1197511845 Here you can find facts and infromation related roofing contributed by members of the roofing community. Users can log in by using their forum username and password . Please note that logging into the wiki does not mean your're also logged in the forums and vice versa. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/concepts?rev=1197511845 Roofing Knowledge Base text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/e-h?rev=1197511845 Roofing Knowledge Base E-H Eave- the lower edge of a sloping roof that part of a roof which projects beyond the wall. Elastomeric Coating - a coating that is capable of being stretched at least twice its original length (100 percent elongation) and recovering to its original dimensions. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq1?rev=1197511845 FAQ's and Guidelines Steps involved in the removal and replacement of damage shingles The following steps are recommended for the proper removal and replacement of damaged shingles. Notes: • In hot weather, cool shingles with a water hose to allow easy separation of the shingle tabs; • In cold weather, avoid excessive bending of the shingles as it could cause cracking. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq10?rev=1197511845 FAQ's and Guidelines Roofing under cold weather Cold weather guidelines: * Traffic on the roof should be avoided as ice, snow and frost make the surface hazardous and can also cause shingles to break or crack. * When removing snow, avoid direct contact with the shingles as this will scrape off the protective granules. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq11?rev=1197511845 FAQ's and Guidelines Algae on roof Usually visible on North-facing light-colored roofs ranging from five years old, discoloration or streaking is sometimes mistaken as dirt, moss, or granule loss. It is actually caused by algae growth that propagates in areas of the roof that receive less direct sunlight, and thereby retain a higher level of moisture. Although most noticeable on light shingle colors, the algae affects all asphalt shingle roofs, including darker colors. The discoloration cau… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq12?rev=1197511845 FAQ's and Guidelines Aging signs in shingles All shingles, whether organic or glass based, will be subjected to UV rays from the sun, causing the asphalt coating to dry, loosening the granules covering in the long run. Other visible signs are pieces of torn shingles, curled tab corners as well as centerline cracks. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq13?rev=1197511845 FAQ's and Guidelines Plastic cellophane tape on back of shingles It it not necessary to remove the plastic cellophane tape that is applied on the back of shingles. This tape is applied during the manufacturing process and prevents the shingles from sticking together in the package. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq14?rev=1197511845 FAQ's and Guidelines Slope(Pitch) Set one end of a 12” level on the roof surface – make it level. Take a tape measure from the other end down to the surface of the roof. This will give you the slope of the roof. For example, a roof rising 4-inches for each horizontal foot has a 4/12 slope. Slope is also sometimes referred to as “pitch”. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq15?rev=1197511845 FAQ's and Guidelines How to clean a tile roof When algae, mildew or moss forms on your tile roof, you can seek out a roof cleaning, painting company to clean the surface of your tile. The following method is recommended to properly pressure clean the surface of your roof to remove the dirt, algae, mildew or moss. Some differences in method may be used depending on whether your tile is slurry coated or through color. In most applications, though, a pressure cleaner set at approximately 1200… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq16?rev=1197511845 FAQ's and Guidelines Walking on Roof While walking on any roof surface should be avoided or kept to a minimum, occasionally it may be necessary. Caution should be exercised not only to ensure your personal safety, but also because most manufacturers specifically do not warrant tile breakage due to foot traffic on the roof. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq2?rev=1197511845 FAQ's and Guidelines Importance of Ventilation Ventilation is a crucial factor in the life of a roofing shingle. Heat build-up in the hot summer months, as well as the cold weather of winter will accelerate the aging process of your asphalt roofing shingles. Proper air circulation, regardless of the weather outside, will greatly reduce the chances of leaking, blistering, distortion, curling, rotting of wood structure, wet insulation and many other potential problems. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq3?rev=1197511845 FAQ's and Guidelines Roof Leaks Leaking roof: Normal weathering of asphalt roofing shingles will not cause leaking. Causes: * Flashings are crucial areas that must be watertight to avoid leaks. These are the areas most frequently identified as the causes of leaks. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq4?rev=1197511845 FAQ's and Guidelines Warranties on Shingles In today's market, there are many types and styles of shingles available. The various types of shingles come with warranties representative of the life expectancy of each type. Generally speaking, the heavier the shingle, the longer the warranty. All other things being equal, the weight difference comes from the amount of waterproofing material (asphalt) used during manufacture. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq5?rev=1197511845 FAQ's and Guidelines Buckling or Puckering areas on roof Fishmouthing looks like buckling but it is usually random on the roof. The front edge of the shingle is raised, and tapers back into the shingle. Although it does not usually affect the durability of the shingle, it should be addressed. Possible Causes: text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq6?rev=1197511845 FAQ's and Guidelines Curling Corners of shingles turning up is refered to as Curling and it is generally caused by excess moisture attacking the underside of the shingle. Inadequate ventilation causes the entrapment of heat and moisture in the attic. This will eventually penetrate the roof deck and cause the shingles to curl. Improving air circulation within the attic space can stop the progress and rectify the situation if the curling is not too severe. In some rare instances, curling can … text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq7?rev=1197511845 FAQ's and Guidelines Gutter Granules Granule loss is a normal process in the weathering and aging of any asphalt shingle. Common causes of additional granule loss: * Traffic on roof; * Shingles applied on very slight slopes (2” in 12” or less), are prone to increased levels of granule loss due to the poor drainage capabilities of the roof. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq8?rev=1197511845 FAQ's and Guidelines Blistering Small bubbles or bumps will sometimes develop on the surface of roofing materials. This is referred to as blistering that will generally appear within 2-3 years of product installation. Small rash blisters, 7mm (1/4”) or less, will not normally affect the performance of the shingle. Larger blisters, often up to 2.5cm (1”) in diameter, can shorten the life of the shingle as they often break exposing the underlying components of the shingle. Causes include … text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faq9?rev=1197511845 FAQ's and Guidelines Buckling Buckling shingles can become humped or wavy, usually running in a straight line up, or across the roof. Possible Causes: * Deck or felt movement often caused by varying moisture levels in the material under the shingles. The shift will cause the nails to move in accordance with the deck forcing the shingles closer or farther apart depending on the situation. * Improper nailing - nails will 'pop up' creating the buckling effect. * Shingles nailed too t… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faqs?rev=1197511845 * What are the steps involved in the removal and replacement of damaged shingles? * Why is ventilation so important? * Why is my roof leaking? * Why do different shingle types carry different warranties? * Why are there sections of my roof where the shingles are buckling or puckering? text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/faqs_and_guides?rev=1197511845 Roofing Knowledge Base FAQ's and Guidelines ---------- Guidelines Shake Shingle Asphalt Shingles Flashing Requirements Reroofing Guidelines Common Roofing Mistakes Roof Life Factors Affecting Roofs How to Inspect a roof How much does it cost to replace a roof text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/g-tape?rev=1197511845 Tools G-Tape G-Tape is an adhesive tape with markings which are clearly visible, like a tape measure, which you can stick on the roof so that no measurements would be off, unlie when using the chalk method. If used properly, it can help efficiency go up and saves a lot of time. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/glossary?rev=1197511845 * A to D * E to H * I to L * M to P * Q to T * U to X * Y to Z text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide1?rev=1197511845 FAQ's and Guidelines Shake Shingles * Minimum #1 Grade. * Spacing between shakes is a minimum 3/8” to a maximum of 5/8”. * Two fasteners per shake minimum - <http://www.littletongov.org/building/roofs.asp> - text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide10?rev=1197511845 FAQ's and Guidelines Advantages and Disadvantages of Slate Roof ADVANTAGES: * beautiful appearance * very distinctive looking * good fire protection * long life span * perceived as the “Rolls Royce” of roofing DISADVANTAGES: text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide11?rev=1197511845 FAQ's and Guidelines Gable roof style – the easiest way to have a reliable roof Gable roof is the simplest construction type of a roof ever and probably the most frequently used roof type all over the world. Gable roof consist of 2 roof surfaces, these roof surfaces (also called roof fields) usually have the shape of a rectangle, they are of the same size and pitch angle. Gable roofs designers recommend the 25-45° pitch angle of the roofs as it represents the best angle for the effluxion… text/html 2009-06-28T10:03:46+00:00 http://www.roofing.com/resources/guide12?rev=1246183426 FAQ's and Guidelines Flat Roofs Even though we call them flat, usually they are not absolutely flat as some “minimum” slope is necessary to allow the rain water to flow off the roof. Therefor the roofs which pitch is below 10 degrees (standard is approximately 3 degrees) we call the flat roofs. The flat roofs advantages are: - the (residential) flat roof construction is less demanding than the construction of any. The Standard slope for a flat roof is 1/4 inch per foot and bare minum… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide13?rev=1197511845 FAQ's and Guidelines Advantages and Benefits of a Steel Metal Roof * Doesn't rot, crack, warp, curl, split, flake, peel, break, burn, or blow off * Most resistant roofing material to hail, wind, fire, and freezing/thawing * Available in wide variety of roofing styles, patterns, designs, and colors * Looks great ! * Lightweight - most styles are less than one-third the weight of asphalt/fiberglass shingles * Energy efficient - can lower your a/c and heating costs * Low mai… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide14?rev=1197511845 FAQ's and Guidelines The aluminum vs. steel roofing: - The price of aluminum (Al) roofing is higher; even though not as high as of the copper roofing, but it´s still too expensive when compared to the steel roofing shingles; - To be honest, the installation price of the aluminum shingles or sheet usually discourages the DIY roofer from using it, but the homeowners are wrong. When just put in the juxtaposition, in 10 years, the aluminum is even more economical roofing material than the stee… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide15?rev=1197511845 FAQ's and Guidelines Underlayment & Flashing In most areas of the country, a roof can't withstand exposure to the elements with just a layer of shingles to protect it. An additional underlayment layer(s) is needed to deter water penetration. Properly sealing out water before shingling requires these elements: text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide16?rev=1197511845 FAQ's and Guidelines Metal Roofs Metal roofs can come as either corrugated metal roof, flat metal roof or standing seam metal roof. It is lightweight and easy to maintain. It also greatly enhances the aethetic appeal of your home or building when used properly. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide2?rev=1197511845 FAQ's and Guidelines Asphalt Shingles * Minimum roof pitch of 2” to 12” or greater. * 6 fasteners per shingle are required for high wind application. * Mansard roof application requires shingle ends to be adhered at application per manufacturers installation instructions. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide3?rev=1197511845 FAQ's and Guidelines Flashing Requirements All neoprene plumbing vent flashing will have to be replaced due to deformities caused by exposure to the elements. When there is damage or rust to flashings, attic vents, furnace and fireplace flues or caps, they are required to be replaced. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide4?rev=1197511845 FAQ's and Guidelines Reroofing Guidelines Roof Repair is repair work of actual leaks and obvious deteriorated areas on an identified, localized basis. Good repair work generally requires highly skilled roofing experience in defect identification and proper repair procedures. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide5?rev=1197511845 FAQ's and Guidelines Common Roofing Mistakes * Single plies: Poor, inconsistent welds, improper fastener spacing, and unadhered base flashing. * Hot bituminous: Inadequate temperature control of asphalt, poor interply integrity and dry laps. * Torch-applied modifieds: Fire safety concerns, over/under torching and voids in seams. * Steep slope: Improperly spaced decks, buckled plywood, no waterproofing underlayment installed in valleys, and improperly installed step flashings. … text/html 2009-08-06T12:58:38+00:00 http://www.roofing.com/resources/guide6?rev=1249563518 FAQ's and Guidelines How long can you expect a roof system to last? Your roof's expected life is dependant on the type of system you have, the maintenance it has received, and the external elements it has endured. However, generally speaking built up roofing can be expected to last 12 to 20 years; shingles 15 to 20 years; wood shake or shingles, 10 to 40 years; clay/concrete tile, in excess of 20 years; metal roofing, 15 to 40 years; and stated before Slate at 30 to 100 years. Each manufact… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide7?rev=1197511845 FAQ's and Guidelines Factors Affecting Roofs * Sun delivers a combination of ultraviolet rays and heat can prematurely age a roof. * Snow or ice that melts and refreezes (called ice damming) pushes up the roofing material and causes leaks. Ice damming can be a temporary problem that ends when the thaw is complete. Excessive amounts can damage the roof and roof structure. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide8?rev=1197511845 FAQ's and Guidelines Roof Inspection Before you think about which material to use, decide if you really need a new roof. Do a roof inspection. Look for: * Loose, warped or worn roofing material. * Excessive roofing granules in the gutters (from shingle roofs). text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/guide9?rev=1197511845 FAQ's and Guidelines How much does it cost ot replace a roof? There is no simple answer to how much the bottom line will be for your roofing project. A bid from your contractor should be based on square footage, the pitch of roof, accessibility, type of roofing material needed, 1- or 2-story home, removal of old roof (if necessary), roof permit and city license, and labor. The average cost to replace a roof runs from approximately $2,000.00 to $12,000.00 depending on the size of the roof an… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/i-l?rev=1197511845 Roofing Knowledge Base I-L Ice Dam - a mass of ice formed at the transition from a warm to a cold roof surface, frequently formed by refreezing melt water at the overhang of a steep roof, causing ice and water to back up under roofing materials. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/kleenkutter?rev=1197511845 Tools Kleenkutter There is a product called Kleenkutter which is getting a lot of good feedback from our site Roofing.com. It is a product of Core Tech Tools Inc, which is located in South Central Oklahoma. They responded to the problem of coming up with a quality, precision metal cutting tool. Their answer to this is the product, Kleenkutter which is Portable Circular Saw System which weighs 140 lbs that comes with standard equipements like: text/html 2009-08-17T16:27:05+00:00 http://www.roofing.com/resources/knowledge_base?rev=1250526425 General Information * Frequently Asked Questions * Tips and Guidelines * Tools Roofing Glossary * A - D * E - H * I - L * M - P * Q - T * U - X * Y - Z Useful Links * Roofing on Wikipedia - Roof and roofing facts from Wikipedia, The Free Encyclopedia. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/m-p?rev=1197511845 Roofing Knowledge Base M-P Membrane - A flexible or semi-flexible roof covering or waterproofing layer, whose primary function is the exclusion of water. Mildew - a superficial growth produced on organic matter or living plants by fungi. Modified Bitumen - (1) a bitumen modified by including one or more polymers (e.g., atactic polypropylene, styrene butadiene styrene, etc.); (2) composite sheets consisting of a polymer modified bitumen often reinforced with various types of mats or films… text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/metalhist?rev=1197511845 History Metal Roofing History Copper and zinc were the first metal roofing materials to be quite popular. They can be seen mostly in established cities back then but can only be seen in houses and properties of the elites because of the high cost of producing these materials because they are hanbd-worked. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/nail_strippers?rev=1197511845 Tools Nail Strippers Nail Strippers increase productivity for roofing, box building, and other hand nailing tasks. Key Features: * Hardened Stainless Steel * Spring-Loaded Doors * Lifetime Warranty for Workmanship * Top-Quality 1” Nylon Straps * Top-Quality Quick-Release Buckles * Straps Long Enough for a Full-Grown Craftsman * Money-Back Guarantee if you are not satisfied * Made in Montana text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/pitchcard?rev=1197511845 Tools Pitchcard Pitchcards are transparent pieces of plastic, usually 4×8 inches which has some markings on it that will determine the pitch of a roof. Basically, you just stand at the sidewalk infront of the house and hold it up so it aligns with the roof and you can determine the roof's pitch. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/q-t?rev=1197511845 Roofing Knowledge Base Q-T Racking - a method of asphalt shingle application, also referred to as the straight-up method, whereby shingle courses are applied vertically, up the roof rather than laterally or across and up. Rafter - one of a series of sloped structural members, that extend from the ridge or hip to the down slope perimeter or eave, designed to support the roof deck and its associated loads. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/roofing_dictionary?rev=1197511845 # A-D Abrasion resistance - the ability to resist being worn away by contact with another moving, abrasive surface, such as foot traffic, mechanical equipment, wind-blown particles, etc. Asbestos - a group of natural, fibrous, impure silicate materials. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/swenson_shear?rev=1197511845 Tools Swenson Shear Swenson shear is a company that sells and manufactures hand shears which saves a lot of time and leaves a straight, clean edge compared to other methods of panel shearing. To know more about the product, visit Swensonshear text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/tips?rev=1197511845 * Shake Shingle * Asphalt Shingles * Flashing Requirements * Reroofing Guidelines * Common Roofing Mistakes * Roof Life * Factors Affecting Roofs * How to Inspect a roof * How much does it cost to replace a roof * Slate Roof text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/tools?rev=1197511845 Roofing Knowledge Base Tools Nail Strippers Kleenkutter Pitchcard G-Tape Swenson Shear text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/u-x?rev=1197511845 Roofing Knowledge Base U-X Underlayment - an asphalt-saturated felt or other sheet material (may be self-adhering) installed between the roof deck and roof covering, usually used in a steep-slope roof construction. Underlayment is primarily used to separate the roof covering from the roof deck, shed water and provide secondary weather protection for the roof area of the building. text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/what_s_the_difference_between_organic_and_fiberglass_shingles?rev=1197511845 FAQ's and Guidelines Organic and Fiberglass Shingles * *Organic shingles * Are softer and easier to work with in cold temperature applications. * Contain more asphalt. * Absorb roof deck stresses better and are more tear-resistant than glass shingles. * Are typically thicker than glass shingles and therefore hide minor imperfections in the roof deck or the old shingle layer. Glass shingles** text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/what_type_of_roof_do_i_have?rev=1197511845 FAQ's and Guidelines Types of Roof - <http://www.stonewayroofing.com/story/default.view?rowID=2> - text/html 2007-12-13T02:10:45+00:00 http://www.roofing.com/resources/y-z?rev=1197511845 Roofing Knowledge Base Y-Z