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What Does 'Building Envelope' Mean?

 
what does building envelope mean
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

Signed, sealed and delivered? It can be. Construction professionals often refer to a ‘building’ envelope when talking about property, amongst plenty of other jargon as well! What does ‘Building Envelope’ mean? We turn super sleuth and investigate on your behalf…

A building envelope is a seal around a building – but not quite in the same way as a letter would fit into a postal envelope.

Be it your house, a commercial property, or a standalone building, the building envelope refers to the seal between the interior of the rooms, and your home’s exterior.

In a property, a building envelope isn’t about the bricks and mortar on the outside, but rather everything that goes between those outside bricks, and the rooms indoors.

A building envelope includes insulation, windows, roofs, doors, and fenestrations. To be frank, it’s more the bubble wrap around goods in a jiffy bag than it is a letter in an envelope!

What is a Building Envelope for?

A building envelope has three main functions – entry and exit, ventilation, and insulation.

The entry and exit refers to the doors, without which the building would be completely inaccessible, and the ventilation to a healthy degree of air flow through the property. Insulation is then the final seal.

It’s important to have an efficient and total insulation seal for a variety of reasons.

The most well-known is, of course, heat, but proper insulation should also maintain an ambient temperature throughout the year, keeping cool in the Summer , and wonderfully warm in the Winter.

what does building envelope mean

 

The chemical make-up and nature of spray foam means that it expands when it enters the air, enabling it to completely fill any nook or cranny that needs sealing off

What’s the Most Effective Building Envelope?

Your doors, windows and roof must be expertly installed, and kept as tight and professional as possible.

For most, these features already come in a property and shouldn’t need regular re-installation.

However, the most effective – and most important – seal for your home is the insulation throughout it, whether that be in the roof, walls, or even under the floor.

Insulation comes in myriad forms, and the most common found in building envelopes throughout the UK is fibreglass insulation panelling.

Unfortunately, this method of insulating is now quite outdated; recent evidence shows it can absorb damp and separate, with natural air flow making it through the spaces (however tiny) between panels.

Why Spray Foam Offers a Superior Solution

The most effective solution for a complete seal in a property is a spray foam insulation.

This faultless foam can be injected or sprayed into all the relevant cavities – under-floor, directly into a roof structure, or into wall spaces themselves.

The chemical make-up and nature of spray foam means that it expands when it enters the air, enabling it to completely fill any nook or cranny that needs sealing off.

It then takes up to 24 hours to dry and totally seal the space around it. Spaces and areas that you can’t see or reach will be sealed, ensuring no air flow can pass.

Allowing no air flow doesn’t mean a lack of ventilation in a property sealed with spray foam insulation.

Of course, you still have your windows and doors for just that, but the spray foam blocks off any of the air flow from walls, ceilings and floors – which can often be dusty and stagnant, containing toxins and allergens.

The increased temperature maintenance is noticeable immediately, with lots of our customers commenting on their decreased energy bills as a result.

what does building envelope mean

The increased temperature maintenance is noticeable immediately, with lots of our customers commenting on their decreased energy bills as a result!

Spray Foam Building Envelope: Key Considerations

A spray foam building envelope needs to be installed by a specialist technician-it’s definitely not a D.I.Y job!

The first step to take in getting a totally sealed and effective building envelope is to contact our spray foam insulation team to discuss your current property conundrums,  and arrange a free home survey to see if spray foam is suitable for your home.

From here, a technician can visit your home, and talk you through exactly what would make your perfect building envelope, maximising all round efficiency to improve your property’s performance. Simply call 0800 1700 636, or click the button below to get started today!