{"id":8845,"date":"2016-10-04T07:02:43","date_gmt":"2016-10-04T12:02:43","guid":{"rendered":"http:\/\/www.napoleon.cc\/tips\/?p=8845"},"modified":"2025-11-05T13:55:29","modified_gmt":"2025-11-05T13:55:29","slug":"asphalt-shingles","status":"publish","type":"post","link":"https:\/\/napoleon.cc\/tips\/asphalt-shingles\/","title":{"rendered":"Asphalt Shingles"},"content":{"rendered":"[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;3.25&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.9.9&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; hover_enabled=&#8221;0&#8243; custom_padding=&#8221;|10px||10px|false|false&#8221; sticky_enabled=&#8221;0&#8243;]<p><\/p>\n<h1 class=\"wp-block-heading\"><span style=\"color: #0000ff;\"><b>Asphalt Shingle Information<\/b><\/span><\/h1>\n<p><\/p>\n<p><div id=\"envira-gallery-wrap-9631\" class=\"envira-gallery-wrap envira-gallery-theme-base envira-lightbox-theme-base\" itemscope itemtype=\"https:\/\/schema.org\/ImageGallery\"><div data-row-height=\"150\" data-gallery-theme=\"normal\" id=\"envira-gallery-9631\" class=\"envira-gallery-public envira-gallery-justified-public envira-gallery-0-columns envira-clear enviratope envira-gallery-css-animations\" data-envira-columns=\"0\"><div id=\"envira-gallery-item-9633\" class=\"envira-gallery-item enviratope-item envira-gallery-item-1 envira-lazy-load\" style=\"padding-left: 5px; padding-bottom: 10px; padding-right: 5px;\"  itemscope itemtype=\"https:\/\/schema.org\/ImageObject\"><div class=\"envira-gallery-item-inner\"><div class=\"envira-gallery-position-overlay  envira-gallery-top-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-top-right\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-right\"><\/div><a href=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0148-300x225.jpg\" class=\"envira-gallery-9631 envira-gallery-link\" rel=\"enviragallery9631\" title=\"Shingles are curling and require replacement\" data-envira-caption=\"Shingles are curling and require replacement\" data-envira-retina=\"\" data-thumbnail=\"\"  itemprop=\"contentUrl\"><img decoding=\"async\" id=\"envira-gallery-image-9633\" class=\"envira-gallery-image envira-gallery-image-1 envira-normal envira-lazy\" data-envira-index=\"1\" src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0148-1024x768-640x480.jpg\" data-envira-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0148-1024x768-640x480.jpg\" data-envira-gallery-id=\"9631\" data-envira-item-id=\"9633\" data-envira-caption=\"Shingles are curling and require replacement\" alt=\"Shingles are curling and require replacement\" title=\"Shingles are curling and require replacement\"  data-no-lazy=\"1\"  itemprop=\"thumbnailUrl\" data-envira-srcset=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0148-1024x768-640x480.jpg 400w,https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0148-1024x768-640x480.jpg 2x\" data-envira-width=\"300\" data-envira-height=\"225\" srcset=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-safe-src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" \/><\/a><\/div><\/div><div id=\"envira-gallery-item-9634\" class=\"envira-gallery-item enviratope-item envira-gallery-item-2 envira-lazy-load\" style=\"padding-left: 5px; padding-bottom: 10px; padding-right: 5px;\"  itemscope itemtype=\"https:\/\/schema.org\/ImageObject\"><div class=\"envira-gallery-item-inner\"><div class=\"envira-gallery-position-overlay  envira-gallery-top-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-top-right\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-right\"><\/div><a href=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0689-300x225.jpg\" class=\"envira-gallery-9631 envira-gallery-link\" rel=\"enviragallery9631\" title=\"Lower shingles are damaged from Ice Damming\" data-envira-caption=\"Lower shingles are damaged from Ice Damming\" data-envira-retina=\"\" data-thumbnail=\"\"  itemprop=\"contentUrl\"><img decoding=\"async\" id=\"envira-gallery-image-9634\" class=\"envira-gallery-image envira-gallery-image-2 envira-normal envira-lazy\" data-envira-index=\"2\" src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0689-1024x768-640x480.jpg\" data-envira-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0689-1024x768-640x480.jpg\" data-envira-gallery-id=\"9631\" data-envira-item-id=\"9634\" data-envira-caption=\"Lower shingles are damaged from Ice Damming\" alt=\"Lower shingles are damaged from Ice Damming\" title=\"Lower shingles are damaged from Ice Damming\"  data-no-lazy=\"1\"  itemprop=\"thumbnailUrl\" data-envira-srcset=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0689-1024x768-640x480.jpg 400w,https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0689-1024x768-640x480.jpg 2x\" data-envira-width=\"300\" data-envira-height=\"225\" srcset=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-safe-src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" \/><\/a><\/div><\/div><div id=\"envira-gallery-item-9636\" class=\"envira-gallery-item enviratope-item envira-gallery-item-3 envira-lazy-load\" style=\"padding-left: 5px; padding-bottom: 10px; padding-right: 5px;\"  itemscope itemtype=\"https:\/\/schema.org\/ImageObject\"><div class=\"envira-gallery-item-inner\"><div class=\"envira-gallery-position-overlay  envira-gallery-top-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-top-right\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-right\"><\/div><a href=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_4578-300x225.jpg\" class=\"envira-gallery-9631 envira-gallery-link\" rel=\"enviragallery9631\" title=\"Screens used to keep out animals at soffit area\" data-envira-caption=\"Screens used to keep out animals at soffit area\" data-envira-retina=\"\" data-thumbnail=\"\"  itemprop=\"contentUrl\"><img decoding=\"async\" id=\"envira-gallery-image-9636\" class=\"envira-gallery-image envira-gallery-image-3 envira-normal envira-lazy\" data-envira-index=\"3\" src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_4578-1024x768-640x480.jpg\" data-envira-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_4578-1024x768-640x480.jpg\" data-envira-gallery-id=\"9631\" data-envira-item-id=\"9636\" data-envira-caption=\"Screens used to keep out animals at soffit area\" alt=\"Screens used to keep out animals at soffit area\" title=\"Screens used to keep out animals at soffit area\"  data-no-lazy=\"1\"  itemprop=\"thumbnailUrl\" data-envira-srcset=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_4578-1024x768-640x480.jpg 400w,https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_4578-1024x768-640x480.jpg 2x\" data-envira-width=\"300\" data-envira-height=\"225\" srcset=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-safe-src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" \/><\/a><\/div><\/div><div id=\"envira-gallery-item-9639\" class=\"envira-gallery-item enviratope-item envira-gallery-item-4 envira-lazy-load\" style=\"padding-left: 5px; padding-bottom: 10px; padding-right: 5px;\"  itemscope itemtype=\"https:\/\/schema.org\/ImageObject\"><div class=\"envira-gallery-item-inner\"><div class=\"envira-gallery-position-overlay  envira-gallery-top-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-top-right\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-right\"><\/div><a href=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/DSCF3747-1-300x224.jpg\" class=\"envira-gallery-9631 envira-gallery-link\" rel=\"enviragallery9631\" title=\"Roof Shingles Replaced at different times.\" data-envira-caption=\"Roof Shingles Replaced at different times.\" data-envira-retina=\"\" data-thumbnail=\"\"  itemprop=\"contentUrl\"><img decoding=\"async\" id=\"envira-gallery-image-9639\" class=\"envira-gallery-image envira-gallery-image-4 envira-normal envira-lazy\" data-envira-index=\"4\" src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/DSCF3747-1-1024x764-640x480.jpg\" data-envira-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/DSCF3747-1-1024x764-640x480.jpg\" data-envira-gallery-id=\"9631\" data-envira-item-id=\"9639\" data-envira-caption=\"Roof Shingles Replaced at different times.\" alt=\"Roof Shingles Replaced at different times.\" title=\"Roof Shingles Replaced at different times.\"  data-no-lazy=\"1\"  itemprop=\"thumbnailUrl\" data-envira-srcset=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/DSCF3747-1-1024x764-640x480.jpg 400w,https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/DSCF3747-1-1024x764-640x480.jpg 2x\" data-envira-width=\"300\" data-envira-height=\"224\" srcset=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-safe-src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" \/><\/a><\/div><\/div><div id=\"envira-gallery-item-9643\" class=\"envira-gallery-item enviratope-item envira-gallery-item-5 envira-lazy-load\" style=\"padding-left: 5px; padding-bottom: 10px; padding-right: 5px;\"  itemscope itemtype=\"https:\/\/schema.org\/ImageObject\"><div class=\"envira-gallery-item-inner\"><div class=\"envira-gallery-position-overlay  envira-gallery-top-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-top-right\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-right\"><\/div><a href=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/old-new-roof-repair-300x225.jpg\" class=\"envira-gallery-9631 envira-gallery-link\" rel=\"enviragallery9631\" title=\"Three Different Layers of Shingles\" data-envira-caption=\"Three Different Layers of Shingles\" data-envira-retina=\"\" data-thumbnail=\"\"  itemprop=\"contentUrl\"><img decoding=\"async\" id=\"envira-gallery-image-9643\" class=\"envira-gallery-image envira-gallery-image-5 envira-normal envira-lazy\" data-envira-index=\"5\" src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/old-new-roof-repair-e1557054987744-640x480.jpg\" data-envira-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/old-new-roof-repair-e1557054987744-640x480.jpg\" data-envira-gallery-id=\"9631\" data-envira-item-id=\"9643\" data-envira-caption=\"Three Different Layers of Shingles\" alt=\"Three Different Layers of Shingles\" title=\"Three Different Layers of Shingles\"  data-no-lazy=\"1\"  itemprop=\"thumbnailUrl\" data-envira-srcset=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/old-new-roof-repair-e1557054987744-640x480.jpg 400w,https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/old-new-roof-repair-e1557054987744-640x480.jpg 2x\" data-envira-width=\"300\" data-envira-height=\"225\" srcset=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-safe-src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" \/><\/a><\/div><\/div><div id=\"envira-gallery-item-9644\" class=\"envira-gallery-item enviratope-item envira-gallery-item-6 envira-lazy-load\" style=\"padding-left: 5px; padding-bottom: 10px; padding-right: 5px;\"  itemscope itemtype=\"https:\/\/schema.org\/ImageObject\"><div class=\"envira-gallery-item-inner\"><div class=\"envira-gallery-position-overlay  envira-gallery-top-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-top-right\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-left\"><\/div><div class=\"envira-gallery-position-overlay  envira-gallery-bottom-right\"><\/div><a href=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/Sag-in-Roof.jpg\" class=\"envira-gallery-9631 envira-gallery-link\" rel=\"enviragallery9631\" title=\"Visible Rafter Sag in Roof\" data-envira-caption=\"Visible Rafter Sag in Roof\" data-envira-retina=\"\" data-thumbnail=\"\"  itemprop=\"contentUrl\"><img decoding=\"async\" id=\"envira-gallery-image-9644\" class=\"envira-gallery-image envira-gallery-image-6 envira-normal envira-lazy\" data-envira-index=\"6\" src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/Sag-in-Roof-640x480.jpg\" data-envira-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/Sag-in-Roof-640x480.jpg\" data-envira-gallery-id=\"9631\" data-envira-item-id=\"9644\" data-envira-caption=\"Visible Rafter Sag in Roof\" alt=\"Visible Rafter Sag in Roof\" title=\"Visible Rafter Sag in Roof\"  data-no-lazy=\"1\"  itemprop=\"thumbnailUrl\" data-envira-srcset=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/Sag-in-Roof-640x480.jpg 400w,https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/Sag-in-Roof-640x480.jpg 2x\" data-envira-width=\"150\" data-envira-height=\"150\" srcset=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-safe-src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAP\/\/\/\/\/\/\/yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" \/><\/a><\/div><\/div><\/div><\/div><noscript><img decoding=\"async\" data-no-lazy=\"1\"  src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0148.jpg\" alt=\"Shingles are curling and require replacement\" \/><img decoding=\"async\" data-no-lazy=\"1\"  src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_0689.jpg\" alt=\"Lower shingles are damaged from Ice Damming\" \/><img decoding=\"async\" data-no-lazy=\"1\"  src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_4578.jpg\" alt=\"Screens used to keep out animals at soffit area\" \/><img decoding=\"async\" data-no-lazy=\"1\"  src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/DSCF3747-1.jpg\" alt=\"Roof Shingles Replaced at different times.\" \/><img decoding=\"async\" data-no-lazy=\"1\"  src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/old-new-roof-repair-e1557054987744.jpg\" alt=\"Three Different Layers of Shingles\" \/><img decoding=\"async\" data-no-lazy=\"1\"  src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/Sag-in-Roof.jpg\" alt=\"Visible Rafter Sag in Roof\" \/><\/noscript>\n<\/p>\n<p>Asphalt shingles have been largely replaced by Fiberglass Shingles which are the most common shingle material now\u00a0 used. The shingles consist of fiberglass base coated\u00a0 and covered with granular material. In 1960 fiberglass mat bases were introduced with limited success, the lighter more flexible shingles proved to be more susceptible to wind damage particularly at freezing temperatures. Also in the 1960&#8217;s research into hail damage which was found to occur when hail reach a size larger than 1.5 inches..<\/p>\n<p><\/p>\n<p>Asphalt shingles were historically classified by weight. The most common type of shingles used today weigh two hundred and ten pounds per square. They have an average life expectancy of twelve to fifteen years. Heavier asphalt<a href=\"https:\/\/napoleon.cc\/tips\/residential-roofing-facts\/\"><img decoding=\"async\" data-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2019\/05\/IMG_1439.jpg\" width=\"299\" height=\"224\" alt=\"Failing Fiberglass Shingles\" class=\"wp-image-9635 alignright size-medium lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 299px; --smush-placeholder-aspect-ratio: 299\/224;\" \/><\/a> shingles such as 225\u2019s (two hundred and twenty-five pounds per square) 235\u2019s and even 320\u2019s are available. 225\u2019s and 235\u2019s have an average life expectancy of fifteen to twenty years, while 320\u2019s have a life expectancy in excess of twenty-five years.\u00a0 ( in my experience as a Home Inspector I found asphalt shingles typically lasted around 20 years but the newer fiberglass type of shingles will only last around 15 years )<\/p>\n<p><\/p>\n<p>Today, asphalt shingles are classified by the warranty offered by the manufacturer. They would now be known as 10 year, 15 year, 20 year, 25 year, 30 year or 35 year shingles. The reason for this change was the use of lighter fiber glass matting. Modern shingles are also available in various textures and edge patterns. \u00a0In my personal experience shingles never last as long as the manufacture claims. \u00a0Seniors have often told me that their roof is guaranteed for 35 or 40 years, \u00a0not that they would be around to make a claim.<\/p>\n<p><\/p>\n<p>Since the mid 1960\u2019s, most asphalt shingles have been of the self sealing type. A strip of tar is put on the surface of the shingles by the manufacturer. This strip is covered by the shingle installed immediately above. When the sun warms the roof surface, the two shingles stick together. This helps prevent the shingles from being blown off in a wind storm. (Shingles installed in the late fall and winter often do not seal themselves until the next spring.) On older, non-sealing asphalt shingles, a wind storm is can be the end of the shingles usefulness. The shingles, brittle with age, simply tear off and blow away.<\/p>\n<p><\/p>\n<p>Conventional asphalt shingles can be used on a slope as low as four in twelve, using normal techniques. Some roofers use these shingles down to a pitch of two in twelve if the roof is first covered with non-perforated, saturated felt papers. The felt papers must be overlapped by fifty percent and the section at the eaves (from the bottom edge up to twenty-four inches beyond the interior of the exterior wall) must be cemented in place to provide extra protection. Unfortunately, it is impossible to determine, during a visual examination, whether this procedure was undertaken.\u00a0Most roofers prefer to use rolled asphalt roofing in this type of situation.<\/p>\n<p><\/p>\n<p>There are also special low slope shingles which are designed for pitches down to two in twelve. With these shingles, only one third of the shingle is exposed to the weather (as opposed to half of the shingle on a conventional installation) and the shingles are individually cemented in place.<\/p>\n<p><\/p>\n<p>Regardless of the type of asphalt shingle used, there are two general rules if thumb you should be aware of. \u00a01) Sunlight is number one cause of failure\u00a0of asphalt roofs and consequently in most areas the south and west exposures wear out the fastest. \u00a02) The steeper the pitch of the roof, the longer the shingles will last.<\/p>\n<p><\/p>\n<p>As asphalt shingles wear, they lose their granular covering. The granular material protects the shingles from ultra-violet light. As it is worn off, the shingles dry out and become brittle. They crack, buckle, and curl. Areas where the granular material has eroded the fastest, wear out first. These may be areas where there is heavy foot traffic, abrasion from tree branches, or erosion from downspouts discharging onto the roof surface.<\/p>\n<p><\/p>\n<p>Occasionally, shingles will wear out prematurely due to a manufacturer\u2019s defect. Blisters, approximately the size of a dime, form underneath the granular surface and cause raised sections in the shingles. While these are not aesthetically pleasing, they do not affect performance until the granular material wears off in these areas. \u00a0IKO had manufactured an organic shingle which created a Class Action lawsuit due to early shingle failure.<\/p>\n<p><\/p>\n<p>The <a href=\"http:\/\/www.napoleon.cc\">Barrie Home Inspector <\/a>also provides Roof inspections for Commercial Buildings<\/p>\n<p><\/p>\n<p><\/p>\n<h4 class=\"wp-block-heading\"><strong><span style=\"color: #008000;\">Articles You May Enjoy<\/span><\/strong><\/h4>\n<p><\/p>\n<p><a href=\"https:\/\/www.napoleon.cc\/home-inspector-barrie-ontario\/\">Home Inspectors Barrie Ontario<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/midland-home-inspector\/\">Midland Home Inspector<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/midland-home-inspector\">Home Inspector Midland<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/home-buyers-guide\/\">Home Buyers Guide<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/areas-inspected\/\">Orillia<\/a><\/p>\n<p><\/p>\n<p><strong><span style=\"color: #ff0000;\">WETT Inspection Information<\/span><\/strong><\/p>\n<p><\/p>\n<p><a href=\"https:\/\/www.napoleon.cc\/innisfil-wett-inspections\/\">Innisfil WETT Inspections<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/flue-pipe-installation\/\">Flue Pipe Installation<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/wett-certified-inspection-floor-protection\/\">WETT Certified Inspection &#8211; Floor Protection<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/wett-certified-inspections-flue-pipes\/\">WETT Certified Inspection &#8211; Flue Pipes<\/a><br \/><a href=\"http:\/\/www.napoleon.cc\/tips\/type-home-inspection-need\/\">What Type of Home Inspection Do I Need<\/a><\/p>\n<p><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_4,1_4,1_4,1_4&#8243; make_equal=&#8221;on&#8221; _builder_version=&#8221;4.7.7&#8243; background_color=&#8221;#0400f0&#8243; width=&#8221;100%&#8221; max_width=&#8221;2560px&#8221; min_height=&#8221;422px&#8221; custom_margin=&#8221;0px|auto|-10px|auto|false|false&#8221; custom_padding=&#8221;||0px||false|false&#8221; global_module=&#8221;12574&#8243;][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.7.6&#8243; custom_padding=&#8221;|20px||20px|false|false&#8221; border_style=&#8221;solid&#8221;]<h3 style=\"text-align: center;\"><span style=\"color: #edf000;\"><strong>Sitemap<\/strong><\/span><\/h3>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong><a href=\"https:\/\/www.napoleon.cc\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Return to Home Page\" style=\"color: #ffffff;\">Home<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/about-barrie-home-inspector\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"About Barrie Home Inspector\" style=\"color: #ffffff;\">About Us<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/home-inspections\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Your Home Inspection\" style=\"color: #ffffff;\">Home Inspections<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/free-thermal-imaging-inspections\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Free Thermal Imaging\" style=\"color: #ffffff;\">Infrared Inspections<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/wett-inspection-barrie\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Barrie WETT Inspections\" style=\"color: #ffffff;\">WETT Inspections<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/trades\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Trades Persons for Your Home\" style=\"color: #ffffff;\">Helpful Resources<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/contact-form\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Contact the Barrie Home Inspector\" style=\"color: #ffffff;\">Contact Information<br \/> <\/a><a href=\"https:\/\/www.napoleon.cc\/asbestos-testing-service-barrie\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Barrie Asbestos Testing\" style=\"color: #ffffff;\">Asbestos Testing<br \/><\/a><a href=\"https:\/\/www.napoleon.cc\/air-quality-testing\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Air Quality &amp; Mould Testing\" style=\"color: #ffffff;\">Air Quality Testing<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/century-home-inspections\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Century Home Inspections\" style=\"color: #ffffff;\">Century Home Inspections<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/commercial-building-inspection\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Commercial &amp; Industrial Building Inspections\" style=\"color: #ffffff;\">Commercial Building Inspections<\/a><\/strong><\/span><\/p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.7.6&#8243; custom_padding=&#8221;||0px|||&#8221; border_style=&#8221;solid&#8221;]<h3 style=\"text-align: center;\"><span style=\"color: #edf000;\"><strong>Contact Information<\/strong><\/span><\/h3>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong>Roger Frost<\/strong><\/span><br \/> <span style=\"color: #ffffff;\"> <strong>Certified Building Code Official<\/strong><\/span><br \/> <span style=\"color: #ffffff;\"> <strong>Certified Master Inspector<\/strong><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong>Phone: 705.795.8255<br \/> Email Roger<\/strong><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong><a href=\"https:\/\/www.napoleon.cc\/home-inspections\/\"><img decoding=\"async\" data-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2022\/01\/alliston-home-inspector-90x90-1.jpg\" width=\"90\" height=\"90\" alt=\"barrie home inspector\" class=\"wp-image-11607 aligncenter size-thumbnail lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 90px; --smush-placeholder-aspect-ratio: 90\/90;\" \/><\/a><\/strong><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong>\u00a0<\/strong><\/span><\/p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.7.6&#8243; custom_margin=&#8221;||||false|false&#8221; custom_padding=&#8221;3px||||false|false&#8221; border_style=&#8221;solid&#8221;]<h3 style=\"text-align: center;\"><span style=\"color: #edf000;\"><strong>Inspection Areas<\/strong><\/span><\/h3>\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\"><strong><a href=\"https:\/\/www.napoleon.cc\/angus-home-inspector\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Angus Home Inspections\" style=\"color: #ffffff;\">Alliston<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/angus-home-inspector\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Angus Home Inspector\" style=\"color: #ffffff;\">Angus<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"The Barrie Home Inspector\" style=\"color: #ffffff;\">Barrie<\/a><br \/><\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/innisfil\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Innisfil Home Inspector\" style=\"color: #ffffff;\">Innisfil<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/orillia-home-inspections\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Orillia Home Inspections\" style=\"color: #ffffff;\">Orillia<\/a><br \/> <\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/midland-home-inspector\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Midland Home Inspector\" style=\"color: #ffffff;\">Midland<\/a><br \/><a href=\"https:\/\/www.napoleon.cc\/penetang-home-inspections\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Penetang Home Inspector\" style=\"color: #ffffff;\">Penetanguishene<\/a><br \/><\/strong><strong><a href=\"https:\/\/www.napoleon.cc\/newmarket-home-inspections\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Newmarket &amp; Bradford Home Inspector\" style=\"color: #ffffff;\">Newmarket<\/a><br \/> <\/strong><a href=\"https:\/\/www.napoleon.cc\/wasaga-beach-home-inspections\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Wasaga Beach Home Inspector\" style=\"color: #ffffff;\"><strong>Wasaga Beach<\/strong><\/a><\/span><\/p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.7.7&#8243; custom_padding=&#8221;|20px||20px|false|false&#8221; border_style=&#8221;solid&#8221;]<h3 style=\"text-align: center;\"><span style=\"color: #ffff00;\"><strong>Certifications<\/strong><\/span><\/h3>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-418 size-full lazyload\" style=\"--smush-placeholder-width: 90px; --smush-placeholder-aspect-ratio: 90\/60;border: 1px solid #000000;\" data-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2022\/01\/Certified-Master-Inspector.png\" alt=\"Barrie Certified Master Inspector\" width=\"90\" height=\"60\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><img decoding=\"async\" class=\"aligncenter wp-image-420 size-full lazyload\" style=\"--smush-placeholder-width: 90px; --smush-placeholder-aspect-ratio: 90\/60;border: 1px solid #000000;\" data-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2022\/01\/WETT-Certified-Inspections.png\" alt=\"Barrie WETT Certified Inspections\" width=\"90\" height=\"60\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><img decoding=\"async\" class=\"aligncenter wp-image-421 size-full lazyload\" style=\"--smush-placeholder-width: 90px; --smush-placeholder-aspect-ratio: 90\/60;border: 1px solid #000000;\" data-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2022\/01\/Certified-Building-Code-Official-1.png\" alt=\"Ontario Building Officials Association\" width=\"90\" height=\"60\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><img decoding=\"async\" class=\"aligncenter wp-image-422 size-full lazyload\" style=\"--smush-placeholder-width: 90px; --smush-placeholder-aspect-ratio: 90\/60;border: 1px solid #000000;\" data-src=\"https:\/\/napoleon.cc\/tips\/wp-content\/uploads\/2022\/01\/InterNachi.png\" alt=\"North American Certified Home Inspectors\" width=\"90\" height=\"60\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]","protected":false},"excerpt":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;3.25&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.9.9&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; hover_enabled=&#8221;0&#8243; custom_padding=&#8221;|10px||10px|false|false&#8221; sticky_enabled=&#8221;0&#8243;] Asphalt Shingle Information Asphalt shingles have been largely replaced by Fiberglass Shingles which are the most common shingle material now\u00a0 used. The shingles consist of fiberglass base coated\u00a0 and covered with granular material. In [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":9643,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"<!-- wp:heading {\"level\":1} -->\n<h1><span style=\"color: #0000ff;\"><b>Asphalt Shingle Information<\/b><\/span><\/h1>\n<!-- \/wp:heading -->\n\n<!-- wp:shortcode -->\n[envira-gallery id=\"9631\"]\n<!-- \/wp:shortcode -->\n\n<!-- wp:paragraph -->\n<p>Asphalt shingles have been largely replaced by Fiberglass Shingles which are the most common shingle material now&nbsp; used. The shingles consist of fiberglass base coated&nbsp; and covered with granular material. In 1960 fiberglass mat bases were introduced with limited success, the lighter more flexible shingles proved to be more susceptible to wind damage particularly at freezing temperatures. Also in the 1960's research into hail damage which was found to occur when hail reach a size larger than 1.5 inches..<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Asphalt shingles were historically classified by weight. The most common type of shingles used today weigh two hundred and ten pounds per square. They have an average life expectancy of twelve to fifteen years. Heavier asphalt shingles such as 225\u2019s (two hundred and twenty-five pounds per square) 235\u2019s and even 320\u2019s are available. 225\u2019s and 235\u2019s have an average life expectancy of fifteen to twenty years, while 320\u2019s have a life expectancy in excess of twenty-five years.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Today, asphalt shingles are classified by the warranty offered by the manufacturer. They would now be known as 10 year, 15 year, 20 year, 25 year, 30 year or 35 year shingles. The reason for this change was the use of lighter fiber glass matting. Modern shingles are also available in various textures and edge patterns. &nbsp;In my personal experience shingles never last as long as the manufacture claims. &nbsp;Seniors have often told me that their roof is guaranteed for 35 or 40 years, &nbsp;not that they would be around to make a claim.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Since the mid 1960\u2019s, most asphalt shingles have been of the self sealing type. A strip of tar is put on the surface of the shingles by the manufacturer. This strip is covered by the shingle installed immediately above. When the sun warms the roof surface, the two shingles stick together. This helps prevent the shingles from being blown off in a wind storm. (Shingles installed in the late fall and winter often do not seal themselves until the next spring.) On older, non-sealing asphalt shingles, a wind storm is can be the end of the shingles usefulness. The shingles, brittle with age, simply tear off and blow away.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Conventional asphalt shingles can be used on a slope as low as four in twelve, using normal techniques. Some roofers use these shingles down to a pitch of two in twelve if the roof is first covered with non-perforated, saturated felt papers. The felt papers must be overlapped by fifty percent and the section at the eaves (from the bottom edge up to twenty-four inches beyond the interior of the exterior wall) must be cemented in place to provide extra protection. Unfortunately, it is impossible to determine, during a visual examination, whether this procedure was undertaken.&nbsp;Most roofers prefer to use rolled asphalt roofing in this type of situation.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>There are also special low slope shingles which are designed for pitches down to two in twelve. With these shingles, only one third of the shingle is exposed to the weather (as opposed to half of the shingle on a conventional installation) and the shingles are individually cemented in place.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Regardless of the type of asphalt shingle used, there are two general rules if thumb you should be aware of. &nbsp;1) Sunlight is number one cause of failure&nbsp;of asphalt roofs and consequently in most areas the south and west exposures wear out the fastest. &nbsp;2) The steeper the pitch of the roof, the longer the shingles will last.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>As asphalt shingles wear, they lose their granular covering. The granular material protects the shingles from ultra-violet light. As it is worn off, the shingles dry out and become brittle. They crack, buckle, and curl. Areas where the granular material has eroded the fastest, wear out first. These may be areas where there is heavy foot traffic, abrasion from tree branches, or erosion from downspouts discharging onto the roof surface.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Occasionally, shingles will wear out prematurely due to a manufacturer\u2019s defect. Blisters, approximately the size of a dime, form underneath the granular surface and cause raised sections in the shingles. While these are not aesthetically pleasing, they do not affect performance until the granular material wears off in these areas. &nbsp;IKO had manufactured an organic shingle which created a Class Action lawsuit due to early shingle failure.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>The <a href=\"http:\/\/www.napoleon.cc\">Barrie Home Inspector <\/a>also provides Roof inspections for Commercial Buildings<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":4} -->\n<h4><strong><span style=\"color: #008000;\">Articles You May Enjoy<\/span><\/strong><\/h4>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p><a href=\"https:\/\/www.napoleon.cc\/home-inspector-barrie-ontario\/\">Home Inspectors Barrie Ontario<\/a><br>\n<a href=\"https:\/\/www.napoleon.cc\/midland-home-inspector\/\">Midland Home Inspector<\/a><br>\n<a href=\"https:\/\/www.napoleon.cc\/home-inspector-midland\/\">Home Inspector Midland<\/a><br>\n<a href=\"https:\/\/www.napoleon.cc\/home-inspection-guide\/\">Home Inspection Guide<\/a><br>\n<a href=\"https:\/\/www.napoleon.cc\/orillia\/\">Orillia<\/a><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><strong><span style=\"color: #ff0000;\">WETT Inspection Information<\/span><\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><a href=\"https:\/\/www.napoleon.cc\/innisfil-wett-inspections\/\">Innisfil WETT Inspections<\/a><br>\n<a href=\"https:\/\/www.napoleon.cc\/flue-pipe-installation\/\">Flue Pipe Installation<\/a><br>\n<a href=\"https:\/\/www.napoleon.cc\/wett-certified-inspection-floor-protection\/\">WETT Certified Inspection - Floor Protection<\/a><br>\n<a href=\"https:\/\/www.napoleon.cc\/wett-certified-inspections-flue-pipes\/\">WETT Certified Inspection - Flue Pipes<\/a><br>\n<a href=\"http:\/\/www.napoleon.cc\/tips\/type-home-inspection-need\/\">What Type of Home Inspection Do I Need<\/a><\/p>\n<!-- \/wp:paragraph -->","_et_gb_content_width":"","footnotes":""},"categories":[35],"tags":[316,318,315,317,319,73],"class_list":["post-8845","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-roofing-inspections","tag-asphalt-shingles","tag-drip-edge","tag-fiberglass-shingles","tag-flashing","tag-gutters","tag-roof-inspections"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Barrie Home Inspector Maintenance Tips<\/title>\n<meta name=\"description\" content=\"Barrie Home Inspection Tips provides valuable information to Home Owners regarding maintenance and defects that might affect their property.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/napoleon.cc\/tips\/asphalt-shingles\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta 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