John Rakic (aka Hound)’s Post

Concrete easily absorbs contaminants, so surfaces must be protected during construction from situations such as in the image below. Concrete needs to remain hydrated post pour to ensure a healthy cure and strong product. Concrete Sealers and Curing Agents are used to prevent moisture loss through evaporation thereby maintaining healthy concrete hydration. Sealers can also protect the slab surface from spills and other contaminants affecting the surface such as dust, grease, spills, oil and water from pipe cutting/threading stations (as in this image), paint, waxes, and many others. Prior to floor covering installation start up, all contaminants (including sealers and curing agents) must be mechanically removed (by shot blasting and/or grinding) wall to wall, throughout the floor space where flooring adhesive will be applied. Removal of surface contaminants is the responsibility of the General Cobtractor. A water droplet test according to ASTM F3191 is recommended. Absorbency of a dime sized droplet of water within 60 seconds is a good base indicator of acceptable concrete surface conditions. www.nfca.ca #commercialflooring #flooring #concrete #contaminantremoval #ASTMF3191 #sealers

When it comes to flat roofing systems, proper flashing installation is one of the most critical aspects of ensuring long-term durability and waterproofing. Flashing is a thin material installed at joints, edges, and penetrations to direct water away from vulnerable areas and prevent leaks. https://lnkd.in/gKamnefZ

𝗟𝗲𝘁𝘀 𝘁𝗮𝗹𝗸 𝗽𝗿𝗲𝗽..... Preparation work is equally as important as the screed installation itself. If the prep work is not carried out sufficiently, this may lead to the screed failing. Therefore it is imperative to follow our guidelines accurately to maintain the integrity of the screed finish. * Before screeding can commence the area to be screeded must be made watertight to prevent leakage. * The polyethene slip membrane installed over the insulation must be overlapped and sealed to prevent loss of screed. If under floor heating is used It is essential that the pipes are laid on top of this. * Pipes or cables must be securely fixed to prevent floatation and lifting during application of the screed. * The UFH pipes must be commissioned prior to application of the screed to check for leaks, this also reduces the risk of pipes floating whilst the screed is being poured. If the screed is being installed directly onto concrete / old screed, you will need to prime the existing substrate (using an SBR) before screeding can commence, this is to kill the suction to prevent the material drying too quickly. Our team go to great lengths to ensure all the preparation work is completed accurately before proceeding with the installation of screed. If we determine that the screed area has not been adequately prepared, we will not be able to proceed with the screed installation. #southernscreed #cemfloor #cemfloorbymcgraths #cementbased #UFH #underfloorheating #floorscreeding #commercialproject #renovation #newbuild #extension #loftconversion #liquidscreed #screed #floorscreed #timberfloors #transformation #selfbuild #constructionindustry #construction #flooringcontractor #refurbishment #surrey #guildford #screedpreparation #screedprep

Proper roof flashing is essential to protect your structure from moisture and damage. It ensures roof protection, tightness, and effective water drainage. 🪚 The process involves precise fabrication, cutting, and assembly of sheet metal components using specialized tools. 🌨 All elements should be carefully sealed for maximum protection against water and snow. _ Eaves Flashing Steps 👇 1️⃣ Preparation: gather tools (shears, hammer, screwdriver, etc.) and protective gear. 2️⃣ Cutting: measure and cut the sheet to size, allowing for shaping. 3️⃣ Installation: secure the ridge and gutter strips, ensuring tightness and adherence to the building facade. 4️⃣ Sealing: seal all joints with gaskets and adhesives. _ Roof Valley Flashing 👇 ➡️ Install sheets with a 20 cm overlap, using small plates (frogs) instead of nails or screws, and add roofing membrane strips for extra protection. Chimney Flashing 👇 ☑️ Top Section: bend and notch the sheet metal into the chimney, sealing with roofing sealant. ☑️ Bottom Section: create a flashing strip connecting to the slope for double protection. __ Consult a professional to ensure your roof flashing is done correctly for optimal protection and longevity 🤗

What not to do! Ensure overhead work trades, especially sprinkler work, protect any concrete floor surface you plan to use as a final finish. Staining and discoloration from spills of oil, rusty metal and chemicals can be easily avoided with a little bit of planning. Unfortunately the construction world still looks at concrete floors as a surface that will be covered up. You have to make the message clear on your intent to use that slab as a finished surface and protecting it is paramount. #retailconstruction #polishedconcrete #keepitclean

When it comes to flat roofing systems, proper flashing installation is one of the most critical aspects of ensuring long-term durability and waterproofing. Flashing is a thin material installed at joints, edges, and penetrations to direct water away from vulnerable areas and prevent leaks. https://lnkd.in/g9m2w-7S

When it comes to flat roofing systems, proper flashing installation is one of the most critical aspects of ensuring long-term durability and waterproofing. Flashing is a thin material installed at joints, edges, and penetrations to direct water away from vulnerable areas and prevent leaks. https://lnkd.in/gKamnefZ

𝗟𝗲𝘁𝘀 𝘁𝗮𝗹𝗸 𝗽𝗿𝗲𝗽..... Preparation work is equally as important as the screed installation itself. If the prep work is not carried out sufficiently, this may lead to the screed failing. Therefore it is imperative to follow our guidelines accurately to maintain the integrity of the screed finish. * Before screeding can commence the area to be screeded must be made watertight to prevent leakage. * The polyethene slip membrane installed over the insulation must be overlapped and sealed to prevent loss of screed. If under floor heating is used It is essential that the pipes are laid on top of this. * Pipes or cables must be securely fixed to prevent floatation and lifting during application of the screed. * The UFH pipes must be commissioned prior to application of the screed to check for leaks, this also reduces the risk of pipes floating whilst the screed is being poured. If the screed is being installed directly onto concrete / old screed, you will need to prime the existing substrate (using an SBR) before screeding can commence, this is to kill the suction to prevent the material drying too quickly. Our team go to great lengths to ensure all the preparation work is completed accurately before proceeding with the installation of screed. If we determine that the screed area has not been adequately prepared, we will not be able to proceed with the screed installation. #southernscreed #cemfloor #cemfloorbymcgraths #cementbased #UFH #underfloorheating #floorscreeding #commercialproject #renovation #newbuild #extension #loftconversion #liquidscreed #screed #floorscreed #timberfloors #transformation #selfbuild #constructionindustry #construction #flooringcontractor #refurbishment #surrey #guildford #screedpreparation #screedprep

𝗟𝗲𝘁𝘀 𝘁𝗮𝗹𝗸 𝗽𝗿𝗲𝗽..... Preparation work is equally as important as the screed installation itself. If the prep work is not carried out sufficiently, this may lead to the screed failing. Therefore it is imperative to follow our guidelines accurately to maintain the integrity of the screed finish. * Before screeding can commence the area to be screeded must be made watertight to prevent leakage. * The polyethene slip membrane installed over the insulation must be overlapped and sealed to prevent loss of screed. If under floor heating is used It is essential that the pipes are laid on top of this. * Pipes or cables must be securely fixed to prevent floatation and lifting during application of the screed. * The UFH pipes must be commissioned prior to application of the screed to check for leaks, this also reduces the risk of pipes floating whilst the screed is being poured. If the screed is being installed directly onto concrete / old screed, you will need to prime the existing substrate (using an SBR) before screeding can commence, this is to kill the suction to prevent the material drying too quickly. Our team go to great lengths to ensure all the preparation work is completed accurately before proceeding with the installation of screed. If we determine that the screed area has not been adequately prepared, we will not be able to proceed with the screed installation. #southernscreed #cemfloor #cemfloorbymcgraths #cementbased #UFH #underfloorheating #floorscreeding #commercialproject #renovation #newbuild #extension #loftconversion #liquidscreed #screed #floorscreed #timberfloors #transformation #selfbuild #constructionindustry #construction #flooringcontractor #refurbishment #surrey #guildford #screedpreparation #screedprep

BladeRUNNER's are compact retrofit collars, used to protect services going through concrete slabs. Particularly useful with limited clearance, BladeRUNNER's utilize a spring-loaded blade mechanism loaded with intumescent that seals the penetration, preventing the spread of fire and smoke. 🔥🌫️ They have been assessed to be suitable with both stack and floor-waste PVC pipes going through concrete slabs as well as through slab upgrades with Maxilite, maintaining an FRL of up to -/240/240. Additionally, they can be used to upgrade existing cast-in collars that are non-compliant. In the following test, an 80mm floor-waste PVC pipe with a p-trap going through a 150mm concrete slab was tested with a BladeRUNNER and maintained an FRL of -/240/240. For more information, click here: https://hubs.li/Q02LwRCf0 #firetesting #passive #fire #construction #building #firesafety #firestopping #passivefireprotection