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Covid-19

COVID-19 & Briary Energy

With the increasing development of COVID-19 cases in the UK, Briary Energy Limited are committed to keeping clients and members of our team as well informed as possible. We have set into motion procedures that will enable us to provide a continued high level of ...

Electric Car

Electricity? Really? The possible impact of the move to electricity for heating and cars

The latest attempt by the government to meet its near-zero carbon target by bringing forward the move to electric vehicles and all-electric heating is well-intentioned, but I believe it is considerably flawed. One of the biggest problems is infrastructure, or to be precise, lack of ...

Gary Nicholls Calor

Calor Gas presentation Day at Tottenham Hotspur

Recently, Gary Nicholls presented to a group of 30 developers on the proposed ADL 2020 the changes moving forward to Future Homes 2025 regulations, at Tottenham Hotspur Football Club. One fact that emerged is that only 2 of the attendees had responded to the consultation ...

Heat-loss Building

Differences between new build EPCs and EPCs for previously constructed buildings

The letters' SAP EPC' reference Energy Performance Certification issued in accordance with SAP methodology and employing SAP software. Such certification is issued by an 'On-Construction Domestic Energy Assessor.’ SAP EPC SAP calculations are how the energy performance of new UK homes is determined. SAP calculations ...

Passivhaus OSB Vapour Tight

Air-tight OSB for timber-frame buildings

Passivhaus is a low-energy performance standard that can be applied to many types of buildings, from homes, care homes, schools, hotels, and supermarkets. This aims to reduce room heating and cooling energy demand while providing excellent indoor comfort levels. This is accomplished mainly by following ...

Air Source Heat Pump Noise Issue

Are heat pumps a noise nuisance in our garden?

Increasing the use of heat pumps following the release of the Future Homes Standard consultation may create acoustic problems that need to be planned. Compressor and heat pump fans cause the main noise and vibration concerns. As air source heat pumps (whether for individual homes ...

Changing Specification

The Dangers of Changing the Specification

Calamity, the merchant can’t get the Aircrete blocks specified for your build, but can offer you medium dense instead. A block is a block, right? Wrong for a variety of reasons that will determine whether your dwelling fails or passes Part L of the building ...

U-Value Insulation

What is a U-value?

U-values measure how effective an insulator is. When it comes to thermal performance, we look in detail at terminology and core concepts. Although the main focus of the environmental performance of buildings is now on the use of carbon, the thermal performance of the building ...

PSI Values

What are PSI Values?

Psi values are a key component of low-energy building design, but what does PSI in building mean? Historically, design teams have given them a cursory look, often leaving default values and’ assumed results’ in the region. But times change and an appreciation of Psi principles …

EPC certificate

What is an EPC?

So, what is an EPC Certificate? The Energy Performance Certificate (EPC Certificate) measures the energy efficiency of a property on an A-G scale. Energy Performance Certificates, launched in England and Wales in 2007, are a legal requirement to sell, lease or build a house. An …

SAP Calculations

What Are SAP Calculations?

They might have flummoxed and annoyed you, but SAP calculations are a critical part of the design cycle for any residential scheme. Building Regulations require SAP calculations and are required for all newly built dwellings in the UK. After 1995, a SAP score has been …

Thermal Bridging Calculations

Thermal Bridging

A thermal bridge (sometimes referred to as thermal bridging, a cold bridge or thermal bypass) describes a situation in a building where there is a direct link between inside and outside via one or more thermally conductive elements than the rest of the building envelope. …

SAP Calculations for Extensions

What is continuous mechanical supply and extract with heat recovery (MVHR)?

Also known as a System 4 ventilation system. MVHR is a form of centralized ventilation scheme that combines supply and extract in one system. Typically, hot, humid air is obtained by a duct system from wet areas, such as kitchens, toilets and utilities, and is ...

SAP Calculations for Conversions

What is a trickle vent?

A' trickle vent' is a device that enables your home to flow clean air. It is connected to the top of your window and helps to maintain a constant airflow all over your home. This is essential since the development of dangerous chemicals can have ...

SAP Calculations for Extensions

How to Pass an Air Tightness Test

How to pass an air tightness test first time An Air Tightness Test (also known as Air Leakage Test, Air Pressure Test, Air Permeability Test) is a government-controlled test to ensure buildings do not leak or hold too much air. Air leakage increases heat loss ...

What is Air Tightness Testing?

Air tightness testing is a recognised method of measuring the extent to which air in the building fabric is lost through leaks. Air leakage testing or air pressure testing is often made reference to as it. Air leakage is the uncontrolled flow of air through ...

Air Test – Frequently Asked Questions

How long does an air test take? There are many things to consider when performing a test; the size of the building to be tested, its complexity and also the air leakage to be achieved. Most tests can be completed in 1-2 hours, although some ...

Basics for Home Ventilation

What is Ventilation? Ventilation is an air exchange between a dwelling's interior and exterior. Ventilation in a home is primarily aimed at removing polluted indoor air and replacing it with' new' outside air. What does purge ventilation mean? Essentially, windows are opened. Manually controlled ventilation ...

What is passive stack ventilation (PSV)?

Also known as a System 2 ventilation system. The use of a passive stack ventilation (PSV) system is one alternative to provide domestic ventilation. This utilizes a mixture of the air flowing across the ceiling and the natural buoyancy of hot humid air to raise ...

What is Background ventilation or intermittent extract fans?

Also known as a System 1 ventilation system. Extract fans are used to serve moist spaces such as kitchens, toilets, and utility rooms for fast intermittent air extraction in this form of decentralised ventilation scheme. The substitute air is supplied by a background ventilators. The ...

What is Continuous mechanical extract (MEV)?

Also known as a System 3 ventilation system. Air from moist spaces like kitchen, toilets and utility rooms is extracted from this form of ventilation system. The replacement air is supplied through background ventilators. Alternatively, when the building has a design permeability greater than 5 ...

Mechanical Ventilation – Different types suitable for you and your home

System 1 - Background ventilators and intermittent extract fans Extract fans are used to serve moist spaces such as kitchens, toilets, and utility rooms for fast intermittent air extraction in this form of decentralized ventilation scheme. The substitute air is supplied by a background ventilators. ...

What is Window Condensation?

Condensation is a problem many homes are dealing with, building up on the inside of the windows and creating humidity in the home as well as humidity and moulding and ponding on the sill of the window, all of which can cause breathing problems over ...

Commercial EPC

Who needs an EPC?

Energy Performance Certification tests energy efficiency and environmental impact of buildings. Who needs an EPC? Residential Buildings There are no residential properties that do not require certification for energy efficiency. Selling or renting a home without an EPC is unlawful. If your property is newly …

What is the difference between SAP and SBEM?

Each new building with a heating system needs to be tested against current government emission targets to check energy efficiency. If you build houses or apartment blocks, every house requires a SAP calculation, ideally before onsite construction starts. Any building that is not a house ...

Briary Energy

SAP L1B extensions, do the calculations right the first time, don’t pay twice.

Unfortunately, there are some architects and builders using a simplified spreadsheet to give L1B compliance to building control for extensions, with inaccurate and misleading results. This is something that more and more local authorities are noticing and gives a very real risk of having your ...

Briary Energy Conventions

SAP 2012 v7.0 Conventions – Briary Summary

Summary (in effect from 31 August 2017 v 7.0) For any and all Scottish SAPs refer to further differences on the 38 page document. In short, most Scottish regulations are more onerous. 1.04 Thermal Bridges must now be signed off before producing an EPC. 2.01 ...

Briary Energy Conventions

Completions surge at CALA

CALA has seen new home completions rise 46% to 1,677 in the year to the end of June, 526 higher than the previous year. In a trading update issued today (July 4th), the firm says it is on track to deliver its strategic growth plan …

Part F

Building Regulations Part F – Ventilation

A recent study published in the journal Building and Environment, has found that people working in green buildings; with optimum ventilation, lighting and heating controls; think better in the office and sleep better when they get home. As well as in the work place, this …

Smart Meter

Smart Meter Roll Out

The government are currently in the process of rolling out smart meters to all UK homes. So far 3.3m first generation smart meters have been installed in UK homes. The plan is by the end of 2020, around 53 million smart electricity and gas meters, …

Baltic Wharf

Case Study – Baltic Wharf

Baltic Wharf is a prestigious development of apartments and hillside homes, situated a short walk from the market town of Totness in South Devon. It is on a site of a working boatyard adjacent to the River Dart. As the second oldest borough in England, …

Briary Energy Viessmann

Heating With Ice (Infographic)

Using innovative technology, with their ice storage system Viessmann show us how they can heat and cool a building using ice. To do this, they use the example of Stommel Haus’ award winning home in the Aberdeenshire hills, a development which we were closely involved …

Halogen Bulb

Halogen Lighting Phased Out / LEDs – No-brainer

In a boost for highly efficient LED lighting; from September 2016, energy guzzling halogen spotlights were phased out across Europe. It is one of several changes, in an effort for European countries to reach their 2020 carbon reduction targets, as per the Energy Efficiency Directive. …

Briary Energy Roof

Solar Roof Tiles

Solar Tiles, also known as solar shingles or solar slates, are designed to look like ordinary roof tiles meaning they blend in with the rest of the roof and often considered to be less obtrusive than traditional solar panels being bolted on to roofs. Tesla, …

Briary Energy Stommelhaus

Heating with Ice

We have recently been involved in a development utilising the ground breaking ‘Heating with Ice’ technology. Stommel Haus, a German based premium manufacturer of offsite eco houses, with whom we work closely on their UK projects, have installed the Viessmann Ice Store Energy system, to …

Tesla Roof Tiles

New Tesla solar roof ‘cheaper’ than concrete ones

The much talked about Tesla solar roof system could cost less than a traditional concrete roof, this is without factoring in the cost savings of the generated electricity.

Briary Energy WWHRS

Tapping into Waste Water Heat Recovery

Briary Energy, being a solutions company, are always striving to find innovative ways of reducing energy use in the home. One such route we have investigated is Waste Water Heat Recovery Systems (WWHRS). Occasionally, when quoting this technology to clients, we are asked to explain …

Briary Energy District Heating

District Heating – Time to Close the Gap

District Heating is a method which, rightly so, is becoming more relevant in today’s climate. Following the update of the Housing SPG, reflecting the alterations to the London Plan, it is mandatory to assess the feasibility of District Heating, to assist towards proposed Zero Carbon …

epd verified

Sustainable building design can benefit from EPDs

ASSA ABLOY has voiced its commitment to creating and promoting Environmental Product Declarations. Universally known as EPDs, these product-specific documents can offer assistance in the design of sustainable buildings. For ASSA ABLOY, sustainability is a key consideration. Its investment in EPDs, which are yet to …

timber

Eurocodes and Structural Timber

Eurocodes are a set of harmonised technical rules developed by the European Committee for Standardisation for the structural design of construction works in the EU. They govern the design and calculation process of buildings and all other types of structures, and incorporate geotechnical aspects, structural …

kokam storage system

South Korea set to deploy 36MW energy storage system

Country’s largest utility aims to install 500MW of energy storage capacity to balance supply and demand by the end of 2017 South Korea’s largest utility has contracted battery developers Kokam to build a 36MW energy storage system at its Non-Gong substation in the south of …

scotland wind turbine

Scotland completely powered by weekend wind

Wind power met all of Scotland’s electricity needs on Sunday, new data shows Blustery weekend weather sent Scottish wind turbines into overdrive on Sunday, with wind energy generating the equivalent of all its electricity needs for the day. According to data released today by WWF …

german storage system

German energy storage market set to hit £780m by 2021, say analysts

Germany’s energy storage market is set to blossom into a thriving market with an annual value of more than £780m by 2021, according to US-based market analysis firm GTM Research.

How to achieve the best possible results in SBEM

Part L2a of the Building Regulations sets the requirements for all new commercial developments when it comes to how efficient they must be. 1. Complete early Complete your SBEM (Simplified Building Energy Model) early in the design process. Completing before the build starts will ensure ...