![]() Always consult the packing/instructions for the precise amount of water per bag.Each bag of grout mix will have a precise amount of water, to which you’ll add the powder.Make sure the joints are dry (wet joints can affect the curing of the grout and cause discolouration).Make sure the paving slabs are free of dust and debris.We suggest making up small batches to prevent wastage, as grout will start curing once mixed (especially in hot weather). These allow you to make up smaller batches of grout when pointing your patio. Most tubs of paving grout come with multiple bags of powdered mix. ![]() Pointing your porcelain patio paving jointsįor porcelain patios, you will need to use an exterior paving grout ( Pavestone Exterior Tile Grout). Grouting the joints deters nature (flora and fauna) from springing up through the joints or burrowing down! You don’t want grass popping up in your patio or ants making it their home, so grouting helps prevent these types of issues.Grouting is the finishing touch, providing visual appeal and completing the look of your porcelain patio.Having this protective and flexible material in the joints prevents the slabs from directly touching one another (contact pressure), where their rubbing together and movement can cause spalling, shaling and chipping of the slab’s edge if not suitable spaced. Exterior grout is slightly flexible/elastic, so it behaves as an expansion joint, compressing in hot weather when the slabs expand.It provides a waterproof seal in the joint, preventing water getting into joints and damaging the laying course through frost-action or chemical erosion.Exterior paving grout serves four main functions: Grouting the joints is an important step in your patio installation. Why do you need to grout your patio paving joints?
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