{"id":13002,"date":"2021-04-13T11:40:11","date_gmt":"2021-04-13T03:40:11","guid":{"rendered":"https:\/\/bdnfasteners.com\/roofing-screw-types\/"},"modified":"2022-12-21T11:29:43","modified_gmt":"2022-12-21T03:29:43","slug":"roofing-screw-types","status":"publish","type":"post","link":"https:\/\/bdnfasteners.com\/th\/roofing-screw-types\/","title":{"rendered":"What screws for metal roofing? Tips on choosing roofing screws types"},"content":{"rendered":"<section  class='av_textblock_section av-l7znru2c-2651cace2e0e48bbf103a49fd09c2636 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h1><strong>What screws for metal roofing? Tips on choosing roofing screws types<\/strong><\/h1>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7znrhgd-e8bd02ea931ccdb2126f3b5bb54dd02b '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p>When selecting fasteners <span style=\"font-weight: 400;\">and<\/span><span style=\"font-weight: 400;\"> roofing screws types <\/span>for specific projects, it is important for the builder, designer, and even installer to understand or be involved in the process to understand not only the material and available options, but to also check compatibility against the environment, and the most important of all, building regulations.<\/p>\n<p><span style=\"font-weight: 400;\">While choosing <\/span><span style=\"font-weight: 400;\">what screws for metal roofing<\/span><span style=\"font-weight: 400;\"> are suitable, <\/span>many might see their choice limited by budget or price-sensitive biddings, though we always remind decision makers to see it in a broader sense.<\/p>\n<p>The cost of fixtures normally accounts for a fraction of the total budget, but plays a significant role in the overall safety and longevity of the structure, as a chain is only as strong as its weakest link \u2013 meaning a roofing sheet will have to remain in place be it rain, wind, or shine to protect what is <span style=\"font-weight: 400;\">covered underneath<\/span>, and the main purpose of screws is to keep substrates securely joined or fastened to one another.<\/p>\n<p>There will always be cheaper alternatives when it comes to building material choices, though one should always ask &#8211; what is the compromise?\u00a0 Are you willing to, in exchange for short-term savings, risk sacrificing safety and stability of the whole project in the long-term?<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4nc1zq-0bb7d07c1992db10f78aa58cdc950827\">\n#top .hr.hr-invisible.av-4nc1zq-0bb7d07c1992db10f78aa58cdc950827{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-4nc1zq-0bb7d07c1992db10f78aa58cdc950827 hr-invisible  avia-builder-el-2  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-34cvzq-59c5a28b19ceba99a6ce83f814fdb77f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2><strong>Questions to determine the correct roofing screws types<\/strong><\/h2>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-7ztd2-e48bf80d9e992fdfbfa330e8a20dd00d\">\n#top .hr.hr-invisible.av-7ztd2-e48bf80d9e992fdfbfa330e8a20dd00d{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-7ztd2-e48bf80d9e992fdfbfa330e8a20dd00d hr-invisible  avia-builder-el-4  el_after_av_textblock  el_before_av_image '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l7ztttos-168d5c33201b2901d7c40ba1c4eb738a\">\n.avia-image-container.av-l7ztttos-168d5c33201b2901d7c40ba1c4eb738a img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-l7ztttos-168d5c33201b2901d7c40ba1c4eb738a .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-l7ztttos-168d5c33201b2901d7c40ba1c4eb738a av-styling- avia-align-center  avia-builder-el-5  el_after_av_hr  el_before_av_textblock '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-12417 avia-img-lazy-loading-not-12417 avia_image ' src=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/type-of-metal-roof-screws_BDN-fasteners.jpg\" alt='roofing screws types' title='roofing screws types'  height=\"1080\" width=\"1920\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/type-of-metal-roof-screws_BDN-fasteners.jpg 1920w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/type-of-metal-roof-screws_BDN-fasteners-768x432.jpg 768w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/type-of-metal-roof-screws_BDN-fasteners-1536x864.jpg 1536w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/type-of-metal-roof-screws_BDN-fasteners-1500x844.jpg 1500w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/type-of-metal-roof-screws_BDN-fasteners-705x397.jpg 705w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/div><\/div><\/div>\n<section  class='av_textblock_section av-l7znv36s-d1ab60a7cd1c4e761fb82d30323f54ac '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>1. Determine the type of roofing sheets are we dealing with.<\/strong><\/h4>\n<p>a. What material is the sheet made of?<\/p>\n<p>b. What profile is the sheet?<\/p>\n<p>c. What is the color?<\/p>\n<p>d. Thickness of the sheet?<\/p>\n<p>e. Is it an insulated panel? If so, what is the thickness of the insulated portion?<\/p>\n<p>f. Will there be skylight panels involved during installation?<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l7zulnqj-408c78af221c86a16a842c273dff7160\">\n#top .hr.hr-invisible.av-l7zulnqj-408c78af221c86a16a842c273dff7160{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-l7zulnqj-408c78af221c86a16a842c273dff7160 hr-invisible  avia-builder-el-7  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-l7znvn8l-41b83b400758199f9e16a553d2915df6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>2. Determine the structure it is affixed to.<\/strong><\/h4>\n<ul>\n<li>Are the purlins steel or timber?<\/li>\n<li>Thickness of the steel purlins?<\/li>\n<li>Are there any trusses involved?<\/li>\n<\/ul>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-tqzzom-be34e6a7e48084ff1dc3dbdf21dedc81\">\n#top .hr.hr-invisible.av-tqzzom-be34e6a7e48084ff1dc3dbdf21dedc81{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-tqzzom-be34e6a7e48084ff1dc3dbdf21dedc81 hr-invisible  avia-builder-el-9  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-l7znxnvu-61c3161c3a96089a79a24257a7ab34df '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2><strong><b>What screws for metal roofing<\/b><b>?<\/b> Choose the correct roofing screws types for the job<\/strong><\/h2>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-6m38m-8d2b9e0ffc626349e053a30604ed6c21\">\n#top .hr.hr-invisible.av-6m38m-8d2b9e0ffc626349e053a30604ed6c21{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-6m38m-8d2b9e0ffc626349e053a30604ed6c21 hr-invisible  avia-builder-el-11  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-l7zo37vb-732d79d08416ba7f8ef163cffd1712a0 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4>1. Should I choose a self-drilling point or a sharp-pointed screw?<\/h4>\n<p>Steel purlins or trusses require self-drilling points and timber requires sharp tipped screws.<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7zo45tx-e2a0e8af28416d264f02b601d1d757d7 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>2. What head type does the job require?<\/strong><\/h4>\n<p>Hex profiles are usually the head type of choice for roofing screws, though some may choose a flatter profile which comes with recessed Philips, square or Torx sockets.<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7zo5fqj-b1d79ab1b42b9077efd7906cce652fbd '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>3. What screw gauge size does it require?<\/strong><\/h4>\n<p>Screw gauge size, or simply gauge, refers to the major diameter of the screw \u2013 the larger the number, the larger the diameter.<\/p>\n<p>Although factors such as choice of wire material, surface, core hardness after heat treatment, and thread pitch and depth are all contributors to the properties of the final product, it is still safe to say that harder and thicker steel, more often than not, require larger gauge screws.<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7zo6iiw-94372294780e2f8cf3807ac432764715 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>4. What thread count (TPI) should I specify?<\/strong><\/h4>\n<p>Fasteners are often driven first through thinner substrates (i.e. metal roofing sheets), and then through thicker material (i.e. steel purlins or structures), pulling in, and fixing the substrates together.<\/p>\n<p>TPI selection is usually determined by the thickness of the thicker material, though some come with special designs such as a larger diameter upper thread to increase pullout values on a thinner top ply.<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7zo7tjq-1054d22651dbe72b26470f958481062b '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>5. How long does the fastener need to be?<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">When selecting <\/span><span style=\"font-weight: 400;\">what screws for metal roofing<\/span><span style=\"font-weight: 400;\">,<\/span>\u00a0the fastener length should cover the thickness of the sheet plus full height of the corrugation (crest fastening on roofs), and should have at least 2 to 3 full thread penetration on the bottom substrate (i.e. steel purlins or structures).<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7zqarjf-b1264a6e32ba9a2b951b82cd923a65bc '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>6. What is the required drilling capacity and choice of drilling tip?<\/strong><\/h4>\n<ul>\n<li>Drilling tip choice correlates directly with the drilling capacity of a self-drilling screw. Thicker substrates will most definitely require longer drilling tips, and harder substrates normally requires wider tips.<\/li>\n<li>A reputable distributor or manufacturer should be able to provide sufficient details of the product and its intended use for you to make the correct choice.<\/li>\n<\/ul>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7zqc02y-2b5325acea75830fce7f81b0662f5c41 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>7. What category of corrosion resistance coating should I use?<\/strong><\/h4>\n<ul>\n<li>Understand your environment. For example, areas close to the coast will be at high risk to corrosion due to high salt content in the atmosphere compared to the inland, and therefore would require high weathering resistant fasteners on structures.<\/li>\n<li>There are multiple choices on the market when it comes to corrosion resistant coatings, and products are normally priced according the number of years the screws can remain rust proof.<\/li>\n<\/ul>\n<p>Since it is impossible to tell from the naked eye how effective the coatings really are, a reputable company will provide accredited 3<sup>rd<\/sup> party test lab reports as proof of compliance.<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7zqeyvv-e9b82aa2b5ef0d4e9d605cc27a963380 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>8. Does it need to be painted?<\/strong><\/h4>\n<p>This normally comes down to personal preference. Some would like head colors to match the roofing sheets, while others simply don\u2019t care.<\/p>\n<p>Paint is another topic which deserves an article of its own, as the weathering process when exposed to the elements sometimes contributes to delamination or chipping of itself and coatings underneath, resulting in catastrophic disasters such as galvanic corrosion in the long run.<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n<section  class='av_textblock_section av-l7zqhpfg-f0ff44220d1d380ee99908f498885188 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>9. Do I need a washer? If so, what material should I use?<\/strong><\/h4>\n<p>Washers should be considered an accessory to fasteners, and can be used with or without depending on where it is used. The main purpose of washers is to help prevent leaks and is normally not required for structural applications such as steel truss or frame connections.<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-f3k2va-50d823680cb2e78018f1550396e20084\">\n.flex_column.av-f3k2va-50d823680cb2e78018f1550396e20084{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-f3k2va-50d823680cb2e78018f1550396e20084 av_two_fifth  avia-builder-el-21  el_after_av_textblock  el_before_av_three_fifth  first flex_column_div av-zero-column-padding  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2y11ty-33068addbaee4b7aaef56b4268d44acd\">\n.avia-image-container.av-2y11ty-33068addbaee4b7aaef56b4268d44acd img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-2y11ty-33068addbaee4b7aaef56b4268d44acd .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-2y11ty-33068addbaee4b7aaef56b4268d44acd av-styling- avia-align-center  avia-builder-el-22  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-12716 avia-img-lazy-loading-not-12716 avia_image ' src=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/Eco-BDN-Green-EPDM-Washers.jpg\" alt='Eco-BDN Green EPDM Washers' title='Eco-BDN Green EPDM Washers'  height=\"1000\" width=\"1000\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/Eco-BDN-Green-EPDM-Washers.jpg 1000w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/Eco-BDN-Green-EPDM-Washers-768x768.jpg 768w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/Eco-BDN-Green-EPDM-Washers-36x36.jpg 36w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/Eco-BDN-Green-EPDM-Washers-180x180.jpg 180w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/Eco-BDN-Green-EPDM-Washers-705x705.jpg 705w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-dlqx7q-21af5784a765a9d578430b8ab4f3eaec\">\n.flex_column.av-dlqx7q-21af5784a765a9d578430b8ab4f3eaec{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-dlqx7q-21af5784a765a9d578430b8ab4f3eaec av_three_fifth  avia-builder-el-23  el_after_av_two_fifth  el_before_av_two_fifth  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-l7ztc846-121c907b209694c40478762c1c883d13 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><ul>\n<li>BDN Fasteners has starts out by introducing the all-new Eco-BDN\u00ae, green-striped, eco-friendly EPDM Green Washers. Eco-BDN\u00ae Green Washers is an optional pre-assembled accessory to our self-drilling and self-tapping screws. These washers provide a perfect seal to the drilled holes and protects it from the elements, whereas the non-conductive feature prevents galvanic corrosion caused by static, while at the same time, being recyclable and bio-degradable.<\/li>\n<\/ul>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-bxxps6-81642e2f5f9f9198fa0497590a06a4a6\">\n.flex_column.av-bxxps6-81642e2f5f9f9198fa0497590a06a4a6{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-bxxps6-81642e2f5f9f9198fa0497590a06a4a6 av_two_fifth  avia-builder-el-25  el_after_av_three_fifth  el_before_av_three_fifth  first flex_column_div av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-43fcm-a6131c5991a47c3d1dd40cf79bd336b6\">\n.avia-image-container.av-43fcm-a6131c5991a47c3d1dd40cf79bd336b6 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-43fcm-a6131c5991a47c3d1dd40cf79bd336b6 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-43fcm-a6131c5991a47c3d1dd40cf79bd336b6 av-styling- avia-align-center  avia-builder-el-26  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-12717 avia-img-lazy-loading-not-12717 avia_image ' src=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/Bonded-EPDM-Washers.jpg\" alt='Bonded EPDM Washers' title='Bonded EPDM Washers'  height=\"1000\" width=\"1000\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/Bonded-EPDM-Washers.jpg 1000w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/Bonded-EPDM-Washers-768x768.jpg 768w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/Bonded-EPDM-Washers-36x36.jpg 36w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/Bonded-EPDM-Washers-180x180.jpg 180w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/Bonded-EPDM-Washers-705x705.jpg 705w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/div><\/div><\/div><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-xro52-31aa6826b721a0c7c95a324d6e98d29a\">\n.flex_column.av-xro52-31aa6826b721a0c7c95a324d6e98d29a{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-xro52-31aa6826b721a0c7c95a324d6e98d29a av_three_fifth  avia-builder-el-27  el_after_av_two_fifth  el_before_av_two_fifth  flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-7esavq-5c832f438d2000f23ffe9dc0c6f73a04 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><ul>\n<li>Bonded EPDM (ethylene propylene diene monomer) washers offer superior resistance to Ozone, UV, sunlight, are extremely pliable, and highly recommended for use with fasteners.<\/li>\n<\/ul>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-68ryfq-717abb9ce91eb1b3cccf56ecd0d1c1a3\">\n.flex_column.av-68ryfq-717abb9ce91eb1b3cccf56ecd0d1c1a3{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-68ryfq-717abb9ce91eb1b3cccf56ecd0d1c1a3 av_two_fifth  avia-builder-el-29  el_after_av_three_fifth  el_before_av_three_fifth  first flex_column_div av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l7ztx2fu-1d7048bf5009dedf2791a8186366e356\">\n.avia-image-container.av-l7ztx2fu-1d7048bf5009dedf2791a8186366e356 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-l7ztx2fu-1d7048bf5009dedf2791a8186366e356 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-l7ztx2fu-1d7048bf5009dedf2791a8186366e356 av-styling- avia-align-center  avia-builder-el-30  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-12718 avia-img-lazy-loading-not-12718 avia_image ' src=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/PVC-Washers.jpg\" alt='PVC Washers' title='PVC Washers'  height=\"1000\" width=\"1000\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/PVC-Washers.jpg 1000w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/PVC-Washers-768x768.jpg 768w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/PVC-Washers-36x36.jpg 36w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/PVC-Washers-180x180.jpg 180w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/PVC-Washers-705x705.jpg 705w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3y4zo6-3dc8af82bcd9405cb1ba9b40e3703aa6\">\n.flex_column.av-3y4zo6-3dc8af82bcd9405cb1ba9b40e3703aa6{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-3y4zo6-3dc8af82bcd9405cb1ba9b40e3703aa6 av_three_fifth  avia-builder-el-31  el_after_av_two_fifth  el_before_av_textblock  flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-6m38m-0e3094e9a9e3db5276e1cf364dd0e138 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><ul>\n<li>PVC washers, though significantly cheaper compared to EPDM washers, are quite stiff, have lower temperature resistance and cannot come in contact with plastic skylights. Due to lack pliability, PVC washers are prone to leakage when used standalone, and should be sealed off with silicone.<\/li>\n<\/ul>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section><\/div>\n<section  class='av_textblock_section av-l7zqiih3-ac4a63d14ff93f8579aef7bd6981f35f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Fasteners are normally manufactured according to standards such as AS, DIN, ASTM or JIS to name a few.\u00a0 These standards provide specific sets of rules and regulations, and should be seen as minimum standards on how products should be manufactured.\u00a0 Choosing a reputable brand that adheres to the standards should prevent any unexpected surprises during and after installation.<\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l7zqjv51-1e5956404a9131c83663446b103502b7\">\n.avia-image-container.av-l7zqjv51-1e5956404a9131c83663446b103502b7 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-l7zqjv51-1e5956404a9131c83663446b103502b7 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-l7zqjv51-1e5956404a9131c83663446b103502b7 av-styling- avia-align-center  avia-builder-el-34  el_after_av_textblock  el_before_av_textblock '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-12432 avia-img-lazy-loading-not-12432 avia_image ' src=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/BDN-Fasteners-Roofing-Screws.jpg\" alt='Roofing Screws Types - self-drilling screws BDN FASTENERS\u00ae' title='Roofing Screws Types - self-drilling screws BDN FASTENERS\u00ae'  height=\"834\" width=\"1080\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/bdnfasteners.com\/wp-content\/uploads\/BDN-Fasteners-Roofing-Screws.jpg 1080w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/BDN-Fasteners-Roofing-Screws-768x593.jpg 768w, https:\/\/bdnfasteners.com\/wp-content\/uploads\/BDN-Fasteners-Roofing-Screws-705x544.jpg 705w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/div><\/div><\/div>\n<section  class='av_textblock_section av-l7zqn7p4-cc71eef43e4fee31436dc2136c2f9314 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/bdnfasteners.com\/th\/\"><strong>BDN Fasteners<\/strong><\/a> offers roofing screws in multiple sizes and specifications to meet different requirements; BDN Fasteners are all manufactured to Australian AS3566 standards, and backed by matching 3<sup>rd<\/sup> party lab reports and real-world testimonials from projects worldwide.<\/p>\n<p>Learn more about roofing screws &gt;&gt;<\/p>\n<p><a href=\"https:\/\/bdnfasteners.com\/th\/metal-roof-screws-rusting\/\">Impact of metal roof screws rusting &amp; how to prevent the damage<\/a><\/p>\n<p><a href=\"https:\/\/bdnfasteners.com\/screws-for-metal-roof-installation\/\">How to choose screws for metal roof installation properly?<\/a><\/p>\n<ol>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ol>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":12417,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[],"tags":[136],"class_list":["post-13002","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-faq-th"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What screws for metal roofing? 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