{"product_id":"insulation-washer-isulfix90","title":"ISULFIX90 · Additional washer for soft insulation","description":"\u003cp\u003eISULFIX90 is a 90 mm washer that goes under the head of an\n\u003ca href=\"\/products\/insulation-anchor-isulfix\"\u003eISULFIX anchor\u003c\/a\u003e when the insulation is\nsoft.\u003c\/p\u003e\n\n\u003cp\u003eAn ISULFIX head is 60 mm across, which bears properly on a rigid board. On soft\ninsulation that same head can sink into the surface instead of sitting on it, and once it\nsinks it stops holding the board flat. The 90 mm face spreads the bearing over a wider area\nso the anchor stays on the surface where it is doing its job.\u003c\/p\u003e\n\n\u003ch2\u003eThis is not a fixing on its own\u003c\/h2\u003e\n\u003cp\u003eIt has no length, no hole size and no nail. It fastens nothing by itself. You order it\n\u003cem\u003ealongside\u003c\/em\u003e ISULFIX anchors, one washer per anchor, not instead of them. If you have\nlanded here looking for the fixing itself, you want the\n\u003ca href=\"\/products\/insulation-anchor-isulfix\"\u003eISULFIX anchor\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eBefore you fix\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eIt does nothing on its own. It needs an ISULFIX anchor, bought separately\u003c\/li\u003e\n  \u003cli\u003eOne washer per anchor. Count them against your anchor quantity, not your board area\u003c\/li\u003e\n  \u003cli\u003eIt is for soft insulation. On rigid board the 60 mm anchor head bears fine without it\u003c\/li\u003e\n  \u003cli\u003eIt spreads bearing. It adds no capacity and carries no building load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated products\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/products\/insulation-anchor-isulfix\"\u003eISULFIX\u003c\/a\u003e insulation anchors ·\n\u003ca href=\"\/products\/insulation-washer-insula65\"\u003einsulation washer for timber\u003c\/a\u003e ·\n\u003ca href=\"\/products\/insulation-screw-dwz\"\u003eDWZ\u003c\/a\u003e and\n\u003ca href=\"\/products\/insulation-screw-dgz\"\u003eDGZ\u003c\/a\u003e insulation screws.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eSold per box of 250 pieces.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"ISULFIX90 — 90 mm washer, box of 250","offer_id":54924607881558,"sku":"ISULFIX90","price":22.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/Screenshot2026-08-08134858_c926d2d7-842a-44b3-9d53-d6643bfba012.png?v=1786186187","url":"https:\/\/timbasystems.com\/products\/insulation-washer-isulfix90","provider":"TimbA Systems","version":"1.0","type":"link"}