Green Solutions
Mackintosh Corporation is committed to finding waterproofing sustainable solutions and green solutions. As waterproofing specialty contractor, Mackintosh is not in a position to affect the entire construction as its involvement is limited to the waterproofing works. However, by selecting the right waterproofing material, addressing specific environmental issues and through innovation a difference can be made diminishing the effects of climate change and global warming. Mackintosh sees this as its mission.
Concrete decks are one of the biggest culprits in creating the urban heat island effect. Heat islands form as vegetation is replaced by asphalt and concrete for roads, buildings, and other structures necessary to accommodate growing populations. These surfaces absorb—rather than reflect—the sun’s heat, causing surface temperatures and overall ambient temperatures to rise. Waterproofing and correct material selection hold part of the solution.
Green roofs not only address the heat island effect but also hold many additional environmental and sustainable benefits. Not only does it provide storm water retention, lesser water use, air pollution cleaning, etc. but also culminates in energy savings.
Installing heat reflective exposed waterproofing to concrete decks is another way to lessen the effects of the heat island effect. The sun’s heat is reflected, rather than absorbed, from the surface reducing the slab temperature. Energy savings due to cooler slab temperatures are also gained.
Mackintosh Corporation offers these sustainable solutions and many others.
The installation of exposed Sika Sarnafil fully adhered PVC membrane to roofs and decks is ideal base for the installation of solar panels without waterproofing penetration using Sika Uni-Anchors or Sika Uni-Base as mounting for the solar panels.
Mackintosh Specializes in Green Roofs
Mackintosh Corporation specializes in supply and installation of waterproofing systems for Green Roofs and Gardens. Mackintosh provides the entire system with basic components being, waterproofing, water retention/protective mat, drainage cells and filtration geotextile with perforated pipes and growing medium being add-ons.
A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems. Green roofs can be either extensive (grass and/or minimal plants/vegetation) or intensive (full of growth). It can also be semi intensive (in between). Mackintosh installs waterproofing for all these green roof types.
Mackintosh primarily uses the Sika Sarnafil G476-15 PVC membrane waterproofing system for the waterproofing for green roofs. Sarnafil invented the PVC membrane for waterproofing and under the guidance of Sika remains the world leader in this field. Sarnafil G476 green roof system has a 50+ year track record globally and has been tried and tested under all climatic conditions. It is simply the best green roof system and delivers peace of mind.
The Sarnafil G476 can either be loosely laid (at floor) or fully adhered. Sarnafil G476-15 comes with a Sika 15 year warranty on material. This is an effective warranty from Sika with Mackintosh warranting workmanship. The BBA rates the life expectancy of Sarnafil at 40+ years. The basic Sarnafil green roof system that Mackintosh installs consists of the Sarnafil membrane, retention geotextile mat, drainage cells and filtration geotextile. Perforated pipes and growing medium can be supplied by others. However, Mackintosh can supply and install both.
Mackintosh can also use the following intermediate priced products for green roofs:
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Davco GRS2000 – This is a polyurethane application that is root repellant. This product carries Singapore Green Building Product approval.
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Sikalastic 632R – This is a polyurethane application and is root penetration resistant.