{"id":28600,"date":"2026-11-12T15:01:04","date_gmt":"2026-11-12T14:01:04","guid":{"rendered":"https:\/\/www.ottaskifer.no\/?page_id=28600"},"modified":"2026-11-12T15:27:32","modified_gmt":"2026-11-12T14:27:32","slug":"faq","status":"publish","type":"page","link":"https:\/\/www.ottaskifer.no\/en\/faq\/","title":{"rendered":"Frequently asked questions"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Here you will find answers to practical questions about purchasing and delivery, dimensions and surfaces, slate roofs, installation and documentation. If you are wondering what makes the stone itself special \u2013 lifespan, colour, maintenance and environment \u2013 you will find the answers under <a href=\"https:\/\/www.ottaskifer.no\/en\/why-ottaskifer\/\">Why Ottaskifer<\/a>.<\/p>\n\n\n<style>.kt-accordion-id28600_227ab3-e4 .kt-accordion-inner-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:2px;}.kt-accordion-id28600_227ab3-e4 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);}.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:1px solid #f2f2f2;border-right:1px solid #f2f2f2;border-bottom:1px solid #f2f2f2;border-left:1px solid #f2f2f2;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;background:#f2f2f2;color:#555555;padding-top:9px;padding-right:13px;padding-bottom:9px;padding-left:13px;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap .kt-blocks-accordion-icon-trigger:before{background:#555555;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger{background:#555555;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-icon-trigger:before{background:#f2f2f2;}.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id28600_227ab3-e4 .kt-blocks-accordion-header:focus-visible{color:#444444;background:#eeeeee;border-top:1px solid #878787;border-right:1px solid #878787;border-bottom:1px solid #878787;border-left:1px solid #878787;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:before, body:not(.hide-focus-outline) .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-blocks-accordion--visible .kt-blocks-accordion-icon-trigger:after, body:not(.hide-focus-outline) .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle ) .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:before{background:#444444;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger, body:not(.hide-focus-outline) .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger{background:#444444;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:hover .kt-blocks-accordion-icon-trigger:before, body:not(.hide-focus-outline) .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:after, body:not(.hide-focus-outline) .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible .kt-blocks-accordion-icon-trigger:before{background:#eeeeee;}.kt-accordion-id28600_227ab3-e4 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{color:#ffffff;background:#444444;border-top:1px solid #444444;border-right:1px solid #444444;border-bottom:1px solid #444444;border-left:1px solid #444444;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basiccircle ):not( .kt-accodion-icon-style-xclosecircle ):not( .kt-accodion-icon-style-arrowcircle )  > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:before{background:#ffffff;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger{background:#ffffff;}.kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:after, .kt-accordion-id28600_227ab3-e4:not( .kt-accodion-icon-style-basic ):not( .kt-accodion-icon-style-xclose ):not( .kt-accodion-icon-style-arrow ) .kt-blocks-accordion-header.kt-accordion-panel-active .kt-blocks-accordion-icon-trigger:before{background:#444444;}@media all and (max-width: 1024px){.kt-accordion-id28600_227ab3-e4 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;}}@media all and (max-width: 1024px){.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:1px solid #f2f2f2;border-right:1px solid #f2f2f2;border-bottom:1px solid #f2f2f2;border-left:1px solid #f2f2f2;}}@media all and (max-width: 1024px){.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id28600_227ab3-e4 .kt-blocks-accordion-header:focus-visible{border-top:1px solid #878787;border-right:1px solid #878787;border-bottom:1px solid #878787;border-left:1px solid #878787;}}@media all and (max-width: 1024px){.kt-accordion-id28600_227ab3-e4 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{border-top:1px solid #444444;border-right:1px solid #444444;border-bottom:1px solid #444444;border-left:1px solid #444444;}}@media all and (max-width: 767px){.kt-accordion-id28600_227ab3-e4 .kt-accordion-inner-wrap{display:block;}.kt-accordion-id28600_227ab3-e4 .kt-accordion-inner-wrap .kt-accordion-pane:not(:first-child){margin-top:2px;}.kt-accordion-id28600_227ab3-e4 .kt-accordion-panel-inner{border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;}.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header{border-top:1px solid #f2f2f2;border-right:1px solid #f2f2f2;border-bottom:1px solid #f2f2f2;border-left:1px solid #f2f2f2;}.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header:hover, \n\t\t\t\tbody:not(.hide-focus-outline) .kt-accordion-id28600_227ab3-e4 .kt-blocks-accordion-header:focus-visible{border-top:1px solid #878787;border-right:1px solid #878787;border-bottom:1px solid #878787;border-left:1px solid #878787;}.kt-accordion-id28600_227ab3-e4 .kt-accordion-header-wrap .kt-blocks-accordion-header:focus-visible,\n\t\t\t\t.kt-accordion-id28600_227ab3-e4 > .kt-accordion-inner-wrap > .wp-block-kadence-pane > .kt-accordion-header-wrap > .kt-blocks-accordion-header.kt-accordion-panel-active{border-top:1px solid #444444;border-right:1px solid #444444;border-bottom:1px solid #444444;border-left:1px solid #444444;}}<\/style>\n<div class=\"wp-block-kadence-accordion alignnone\"><div class=\"kt-accordion-wrap kt-accordion-id28600_227ab3-e4 kt-accordion-has-14-panes kt-active-pane-0 kt-accordion-block kt-pane-header-alignment-left kt-accodion-icon-style-basic kt-accodion-icon-side-right\" style=\"max-width:none\"><div class=\"kt-accordion-inner-wrap\" data-allow-multiple-open=\"false\" data-start-open=\"none\">\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-1 kt-pane28600_418730-57\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">Where can I buy Ottaskifer?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Otta Skifer sells Ottaskifer through a number of dealers in Norway, and directly to contractors and larger business customers. <a href=\"https:\/\/www.ottaskifer.no\/en\/contact-us\/\">Contact us<\/a> and we will help you find your nearest dealer.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-2 kt-pane28600_4681cd-dc\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What is the delivery time?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Ottaskifer is a stock item, and most standard products have a short delivery time \u2013 either from the dealers\u2019 own stock or from our main warehouse in Otta. For custom-made and tailored products, allow for a somewhat longer delivery time. Read more under <a href=\"https:\/\/www.ottaskifer.no\/en\/delivery-terms\/\">delivery terms<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-3 kt-pane28600_377fe4-77\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">Can I become an Ottaskifer dealer?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Yes, we are always taking on new dealers. Send us an email at <a href=\"mailto:post@ottaskifer.no\">post@ottaskifer.no<\/a> if you would like to become a dealer.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-4 kt-pane28600_05fbef-cb\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What products do you make?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Our range includes floor tiles, steps, flagstones, window sills, paving slabs, benches and tables, kitchen worktops, fireplace slabs, skirtings, strips, roofing slate, facade slate, dry stone walling and machine-cut walling. See <a href=\"https:\/\/www.ottaskifer.no\/en\/products\/\">all our products<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-5 kt-pane28600_78fb2f-7a\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What dimensions and thicknesses are available?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">We produce fixed sizes, random lengths, gauged (calibrated) slate and custom sizes to drawing. Slate tiles are available in widths of 200, 300 and 400 mm in random lengths, and in the formats 300\u00d7300, 400\u00d7400, 300\u00d7600 and 400\u00d7600 mm. Other sizes and thicknesses are available on request. See <a href=\"https:\/\/www.ottaskifer.no\/en\/products\/slate-tiles\/\">slate tiles<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-6 kt-pane28600_285231-ef\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What surfaces and edges are available?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Ottaskifer is supplied with a natural, brushed or honed surface, and the edges can be sawn, brushed or honed. Otta Rust is only supplied with a natural surface, as its characteristic rust colour disappears when the stone is processed. See <a href=\"https:\/\/www.ottaskifer.no\/en\/product-information\/\">product information<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-7 kt-pane28600_fbe451-06\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What is the difference between Pillarguri and Otta Rust?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Ottaskifer comes in two types. Pillarguri is blue-black, almost black. Otta Rust has a warm rust colour from the uppermost, rust-bearing layers of the quarry, and is only supplied with a natural surface.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-8 kt-pane28600_2fab31-4e\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What do thickness range and gauged thickness mean for tiles?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Tiles in a thickness range, for example 8\u201317 mm, vary slightly in thickness from tile to tile. Small irregularities are taken up with the right amount of adhesive. Gauged tiles are diamond-milled on the back to the desired thickness and can be fixed directly to the substrate with tile adhesive for natural stone, which makes installation faster.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-9 kt-pane28600_478d4d-cf\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What types of slate roof are there?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">There are four traditional formats: square slates, scalloped slates, rectangular slates and random flagstones. We also supply urban roofing slate \u2013 rectangular 300 \u00d7 600 mm slates fitted horizontally between metal profiles for a more modern look. See <a href=\"https:\/\/www.ottaskifer.no\/en\/products\/slate-roof\/\">slate roof<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-10 kt-pane28600_7871a4-37\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">How much roofing slate do I need?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">It depends on the format and the overlap. With small and medium-sized square slates, you need approximately 1.4 m\u00b2 of roofing slate per m\u00b2 of roof area, based on a 50 mm overlap. Rectangular slates require a larger overlap and therefore more slate. For roofs laid with random flagstones, we recommend ordering slate equivalent to twice the roof area.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-11 kt-pane28600_081a14-7b\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">Is the roofing slate supplied ready for installation?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Yes. Roofing slate is supplied with clipped edges and pre-drilled for easy and correct installation, and most formats are supplied with gauged thickness. Laying instructions for square slates can be downloaded from the <a href=\"https:\/\/www.ottaskifer.no\/en\/products\/slate-roof\/\">slate roof page<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-12 kt-pane28600_dd9a38-16\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">How do I lay slate tiles?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Use slate adhesive or mortar adhesive designed for natural stone, and follow the adhesive manufacturer\u2019s instructions. Outdoors, good groundwork with effective drainage is essential to avoid stains and blotches on the surface. Installation guides from Mapei and Laticrete are available under <a href=\"https:\/\/www.ottaskifer.no\/en\/product-information\/\">product information<\/a>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-13 kt-pane28600_ded710-b6\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">Where can I find technical documentation and maintenance guides?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Under <a href=\"https:\/\/www.ottaskifer.no\/en\/product-information\/\">product information<\/a> you will find technical data, product specifications and operation and maintenance (FDV) documentation for floors, stairs, walls and facades, paving, walling stone and outdoor areas, as well as guidance on fixing slate with adhesive.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-kadence-pane kt-accordion-pane kt-accordion-pane-14 kt-pane28600_570782-d1\"><div class=\"kt-accordion-header-wrap\"><button class=\"kt-blocks-accordion-header kt-acccordion-button-label-show\" type=\"button\"><span class=\"kt-blocks-accordion-title-wrap\"><span class=\"kt-blocks-accordion-title\">What is the difference between Otta Skifer and Ottaskifer?<\/span><\/span><span class=\"kt-blocks-accordion-icon-trigger\"><\/span><\/button><\/div><div class=\"kt-accordion-panel kt-accordion-panel-hidden\"><div class=\"kt-accordion-panel-inner\">\n<p class=\"wp-block-paragraph\">Otta Skifer is the name of the company, while Ottaskifer is the product \u2013 the slate we quarry and process. <a href=\"https:\/\/www.ottaskifer.no\/en\/about-otta-skifer\/\">Read more about Otta Skifer<\/a>.<\/p>\n<\/div><\/div><\/div>\n<\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Didn\u2019t find the answer you were looking for? <a href=\"https:\/\/www.ottaskifer.no\/en\/contact-us\/\">Contact us<\/a> and we will be happy to help.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here you will find answers to practical questions about purchasing and delivery, dimensions and surfaces, slate roofs, installation and documentation. 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