Form, glazing and shading
Compare the effect of orientation, window distribution, solar control and shading. Coordinated Part L and Part O work makes the shared constraints visible, including noise, guarding and security limits on openings.
For architects and designers
Building performance, part of the design
Energy, overheating and fabric advice for architects, from early options to the details and evidence needed on site.
Technical advice that fits the design process
Bring the design question and the information you have. We will define the useful assessment, make assumptions visible and return actions the project team can carry into the drawings.
A window decision can affect heat loss, summer comfort, opening area and the ventilation strategy. An insulation change can affect build-up depth, junctions and the energy model. Briary examines those connections while the design has room to respond.
Planning, Building Regulations and client performance targets retain their own criteria. We establish what each assessment must demonstrate and keep the shared design information consistent.
Decisions we can help you test
Fabric and junctions
Turn build-ups into U-values and suitable condensation checks, then examine the junctions through psi-value calculations. Keep the insulation line, drawing detail and model inputs connected.
Systems and non-domestic spaces
Coordinate the architectural information with heating, ventilation, cooling and lighting proposals. The required output may be SBEM and BRUKL, a planning energy statement or a defined comfort study.
Specification changes
Send the existing and proposed product data, affected drawing revision and plots or spaces. We identify which commissioned assessments need review and what has to change in the evidence record.
Support at each project stage
Feasibility and planning
Test the main performance risks, identify site constraints and establish any planning evidence needed before the design is committed.
Technical design and Building Regulations
Assess the developed information, return the governing performance requirements and resolve inconsistent drawings or specifications.
Procurement and construction
Review proposed changes against the agreed assessment scope and identify evidence that must be gathered before work is covered.
Handover and completion
Reconcile installed products, tests, commissioning and photographs with the final model and commissioned outputs.
What comes back to the team
A clear technical finding
The controlling issue, the options tested and the assumptions still requiring confirmation, written so the next design action is clear.
Requirements for drawings and specifications
Relevant fabric, openings, systems or evidence requirements within the agreed scope. Product selection and final design responsibility remain with the appointed designers.
The commissioned assessment
Project-specific calculations and reports, with input references and limitations. Testing and final updates are included where agreed in the scope.
Getting started
A useful first information pack
Drawings and schedules
Site layout with north point, plans, elevations and sections; room uses; current window schedule; drawing numbers and revisions. Dimensioned PDFs are a useful starting point.
The decisions still open
Fabric build-ups, junctions and proposed systems, with confirmed selections separated from targets. Identify the design features that need to be retained.
The brief and constraints
Building use and location, project stage, planning or building-control request, client targets, known acoustic constraints and the decision date.
Frequently asked questions
Can you review models or drawings before formal assessment?
Yes. An early review can establish risk, information gaps and the most useful sequence of checks.
Do you accept BIM exports?
We can review available digital information, but calculation inputs still need validation against dimensioned and controlled project documents.
Can you provide specification clauses?
We can state required performance and evidence within our scope. Product selection and the final project specification remain with the responsible designer.
Send the design question
Include the current stage, drawings, constraints and the date the decision is needed. We will define the assessment and information required.