{"product_id":"k2-2004098","title":"K2 Dome Porter Ballast Tray for Dome 6 Flat Roof Systems","description":"\u003c!-- clearray-added-v1 --\u003e\n\u003cdiv class=\"crx\"\u003e\n\u003cp class=\"crx-lede\"\u003eOn a flat roof nothing is screwed down, so the array is held by weight. The \u003cb\u003eDome Porter\u003c\/b\u003e is the aluminium tray that carries that weight: a \u003cb\u003e2195 × 40 × 40 mm\u003c\/b\u003e channel that takes ballast slabs of whatever size the roof and the loading calculation call for.\u003c\/p\u003e\n\u003cp class=\"crx-lede\"\u003eK2 rate a \u003cb\u003epair\u003c\/b\u003e of mounted Dome Porters at up to \u003cb\u003e108 kg\u003c\/b\u003e of ballast between them. It is part of the K2 Dome 6 system.\u003c\/p\u003e\n\n\u003ch3 class=\"crx-h\"\u003eWhy a tray rather than loose slabs\u003c\/h3\u003e\n\u003cp\u003eBallast laid straight onto the membrane concentrates load wherever the slab happens to sit and moves over time. The tray spreads it along the system and keeps it where the calculation assumed it would be, which is the part that actually matters when the wind loading is checked.\u003c\/p\u003e\n\u003cp\u003eIt also takes slabs of different sizes, so the ballast can be sourced locally rather than shipped with the kit.\u003c\/p\u003e\n\n\u003ch3 class=\"crx-h\"\u003eBefore you order\u003c\/h3\u003e\n\u003cdiv class=\"crx-note\"\u003e\n  \u003cdiv\u003e\n    \u003cb\u003eCheck the module length against K2's datasheet\u003c\/b\u003e\n    \u003cp\u003eThe supplier data for this part is inconsistent on module length – the listing title and the description give different ranges. The tray dimensions and the 108 kg ballast limit are not in dispute, but confirm the module length this Dome Porter is rated for against K2's own datasheet before you order a roof's worth.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"crx-note\"\u003e\n  \u003cdiv\u003e\n    \u003cb\u003eBallast weight is a calculation, not a guess\u003c\/b\u003e\n    \u003cp\u003eHow much ballast a flat roof array needs depends on the building height, the exposure, the parapet and the wind zone, and the roof has to be able to carry it. Both the ballast figure and the roof capacity are checked before anything is ordered.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 class=\"crx-h\"\u003eOrder alongside\u003c\/h3\u003e\n\u003cul class=\"crx-need\"\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2002300\"\u003eK2 SpeedPorter\u003c\/a\u003e\n      \u003cp\u003eThe quicker-fitting porter in the same flat-roof family.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2002609\"\u003eK2 DomeClamp Middle Clamp 30-50mm Black\u003c\/a\u003e\n      \u003cp\u003eThe clamp range Dome 6 uses, which the XS clamps are not compatible with.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-1006039\"\u003eK2 Dome Flat Connector Set\u003c\/a\u003e\n      \u003cp\u003eConnects the Dome base components across the array.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2003247\"\u003eK2 S-Dome 6.10 Base Set, 950-1060mm\u003c\/a\u003e\n      \u003cp\u003eA complete base set for the Dome system, including BasicRail, Dome SD, EndPlate and Mat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 class=\"crx-h\"\u003eQuestions on the Dome Porter\u003c\/h3\u003e\n\u003cdiv class=\"crx-qa\"\u003e\n  \u003cdiv\u003e\n\u003cb\u003eHow much ballast can it hold?\u003c\/b\u003e\n    \u003cp\u003eK2 rate up to 108 kg divided across two mounted Dome Porters. The figure your roof needs comes from the wind loading calculation.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv\u003e\n\u003cb\u003eDo the ballast slabs come with it?\u003c\/b\u003e\n    \u003cp\u003eNo. The tray takes slabs of different sizes, so they are usually sourced locally rather than shipped.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv\u003e\n\u003cb\u003eWill my roof carry the ballast?\u003c\/b\u003e\n    \u003cp\u003eThat is a structural question for the building, not for the mounting system. It is checked before the array is designed, not after.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv\u003e\n\u003cb\u003eHow does it arrive?\u003c\/b\u003e\n    \u003cp\u003eIt is over 2 m long, so it ships on a pallet to a kerbside delivery rather than by parcel carrier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"K2","offers":[{"title":"Default Title","offer_id":59131025129804,"sku":"K2-2004098","price":25.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1048\/7742\/4972\/files\/K2-2004098.jpg?v=1791560723","url":"https:\/\/clearraysolar.co.uk\/products\/k2-2004098","provider":"ClearRay Solar","version":"1.0","type":"link"}