How To Install Waterproof Membrane On Roof

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How to install waterproof membrane on roof.

When building a new building where below grade structures may be at risk for water intrusions such as basements elevator pits or underground garages waterproofing is essential to keep these areas dry. Clear roof surface of debris. It is important to use only high density insulation or densdeck under the membrane. Membrane roofing installation labor basic basic labor to install membrane roofing system with favorable site conditions.

A typical application of liquid applied roof membranes consists five main steps which should all be treated with utmost importance following the product manufacturer instructions. Here is an article describing the installation of sheet applied waterproof membrane. Seal edges and all roof penetrations. Physically repairing or remodelling the roof is an expensive task which is why a good solution is to apply waterproof membranes and improve the overall water drainage of the roof.

Cut and layout material apply recommended adhesive and roll. You should only use an 80 mil membrane because thinner membranes have a high risk of tearing. Projex recommends wolfin cosmofin membrane systems for roof waterproofing because these products are not affected by ponding or pooling water. Cleaning priming treatment of details main coating application and inspection.

All nails must be covered with a membrane. Unroll and position the roll. Make sure the bottom of the membrane is overlapping the eaves support tray or uv resistant membrane by at least 150mm but not by so much that it will still be exposed when the roof tiles are laid. Next lay the breather membrane parallel with the roof eaves normally when installing breather membrane the printed side should face outwards.

To ensure that your roof deck is completely watertight and will last a long time we recommend the following tpo membrane installation guidelines. The first step in waterproofing a roof is cleaning of the. Install the membrane horizontally starting at the bottom of the slope.