Building envelope materials1/29/2024 You never know what the elements will throw your way and taking a chance on something that is new could go horribly wrong. Sometimes proven systems are the best way to go. The Newest System Isn’t Always The Best – in construction vendors are always trying to sell their newest system. For example – asphalt that is used to apply blueskin can eat away at certain PVC products used in roofing. Before installing the products it’s recommended you check with both to make sure they are compatible. Spend extra time on these details and focus on making sure they are water tight and sealed. Where you run into issues is where two different products meet. Generally products that are applied across large areas, unless applied incorrectly, are designed to perform well. Therefore if you live in a cold climate it goes on the inside (warm air gets cold on its way out) and in warm climates it goes on the outside (warm air tries to get in).įocus On Transitions – how many times have you heard of a roof leaking at a joint in it, or a window leaking around the perimeter casing? 90% of all facade problems originate from where two materials meet. Because warm air condensates when it gets cold, you want to block the cold air from getting warm. The air barrier is intended to stop the movement of air. By putting the vapour barrier on the outside of the wall cavity it keeps any vapour from the exterior from getting inside. The intention of this is to keep the insulation free from moisture. Vapour Barrier On The Wet Side, Air Barrier On The Warm Side – one of the golden rules of construction. How do you start, there’s a few main concepts you can follow or generally always keep in mind. If this is your main purpose you’ll stand a better chance at doing so. Given there’s alot to know your main focus should be constructing with quality in building envelope construction. Focus On Quality In Envelope Construction The terminology can really add up and get confusing so just try to keep things within the three main components until you get more comfortable with the terminology. Panelling or Siding System (ceramic, metal, composite, precast etc)Īs you can tell theres a lot to know about the different types of systems.What The Various Construction Techniques for each Building Envelope Component?įor each component there’s a long list of materials and systems that can make up your assemblies, so lets list a few of them: In general the building envelope is made up of three components – slab, walls and roof. Anywhere the weather could come in your building envelope is there to protect you. It could be clerestory windows or skylights. It can be the walls, slabs, roof and parapet. The building envelope is really any exterior facing component of your building. But as a project manager or site super intendent it’s your job to know the basics and the right questions to ask. We won’t pretend to be fancy building scientists, we’re far from it. As a builder you should be focused on quality to this vital building component, holes and improper installation can lead to discomfort for the building occupants. Keeping the weather out and the comfort in is the primary role for your envelope. Your building envelope is just as important as the interiors. Share on Facebook Share on Twitter Share on LinkedIn Share on Email
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