On 22 June 2026, the United Nations Office for Disaster Risk Reduction (UNDRR) highlighted chronic heat in South-East Asia and East Africa. Unlike a short heatwave, chronic heat refers to sustained periods of elevated temperature and humidity that can affect people, infrastructure, energy systems, and the built environment over time. A few days earlier, the World Meteorological Organization (WMO) reported that Africa is warming faster than the global average and that drought affected more than 8.5 million people in East Africa in 2025.
For a window and door project, this news does not create one universal "hot-climate" specification. It does make a stronger case for an early, coordinated brief. The project team should record how the building will be used, which façade zones may differ, what site and operation information is available, which decisions belong to the design team, and what evidence is required for the final proposed configuration.
Important: This guide does not prove that a product will maintain a particular indoor temperature, reduce cooling demand, or meet a local requirement. Those outcomes depend on the individual site, complete building design, final system configuration, installation, occupancy, operation, applicable rules, and the evidence reviewed by the responsible project professionals.
Chronic Heat Requires More Than a One-Day Heatwave Response
UNDRR describes chronic heat as a sustained problem that needs long-term, systemic planning rather than only short-term emergency action. That distinction matters for project documentation. A window or door decision should not be isolated from shading, adjacent façade construction, room use, occupancy patterns, building services, electrical resilience, cleaning access, maintenance, and the building's operational plan.
The right starting point is a set of confirmed inputs-not a product promise. A window schedule can show dimensions and opening types, but it should also identify where the project team still needs to decide how each space will be used and operated. This makes the subsequent manufacturer discussion more focused and makes it easier to compare proposals on the same scope.
Start With Building, Occupancy, Site, and Operation Inputs
Prepare a short heat-planning brief before the RFQ or final quotation stage. It should identify known facts, decision owners, and open items without assuming that all East African locations or buildings have the same conditions.
| Input to record | Why it matters for the discussion | Who should confirm it |
|---|---|---|
| Exact location, building use, and project stage | Stops a regional news article from being treated as a site-specific design basis | Buyer / project team |
| Room types, occupancy, and critical-use spaces | Helps the team identify spaces with different use and operating needs | Architect / client / operations team |
| Façade zones, orientation, height, and surrounding context | Makes clear that openings can have different exposure and shading conditions | Architect / façade consultant |
| Available climate, site, and local requirement information | Keeps verified local inputs separate from general regional context | Local project team / responsible professional |
| Intended shading, glazing, and opening strategy | Reveals dependencies that must be coordinated across the design | Architect / façade / building-services team |
| Mechanical ventilation, cooling, controls, and power-resilience assumptions | Prevents the window/door package from being discussed independently of building operation | Building-services / operations team |
| Installation interfaces and construction sequence | Makes perimeter details, tolerances, protection, and handover questions visible | Contractor / design team |
| Required documents, review route, and approval responsibilities | Clarifies which evidence the buyer expects before comparing options | Buyer / compliance owner |
If a decision is still open, label it clearly. "Operational approach to be confirmed by building-services team" is more useful than copying an unsupported performance target across every window type.
Turn Those Inputs Into a Window and Door Schedule
The usual schedule fields still apply: opening reference, quantities, dimensions, configuration, glazing, hardware, finish, accessories, location, and destination. For long-term heat planning, add a field or attachment that connects each opening to the project question that needs a decision.
| Schedule field | Question to include | Example status wording |
|---|---|---|
| Opening reference and room | Does the room have a defined occupancy or critical-use requirement? | Room use and operating requirement to be confirmed |
| Façade zone and orientation | What site, shading, or exposure inputs apply to this zone? | Zone-specific design inputs to be confirmed by project team |
| Opening configuration | How is the opening intended to be used within the coordinated operating plan? | Opening use and controls coordination to be confirmed |
| Glazing, shading, and adjacent façade details | Which final configuration needs review against the project's stated requirements? | Final configuration and required evidence to be confirmed |
| Hardware and accessories | Are there access, safety, durability, or maintenance questions set by the project? | Project maintenance and access requirements to be confirmed |
| Installation interface | Are substrate, perimeter details, tolerances, and sequencing defined? | Installation interface to be coordinated with final design |
| Documents | Which reports, drawings, manuals, or approvals are requested? | Required documents and review route to be confirmed by buyer |
This approach does not turn an article into a performance specification. It creates a clean list of questions that the project team can answer, assign, or keep open before final selection.
Coordinate the Façade, Shading, and Building-Services Questions
Long-term heat planning is a coordination task. A window or door package may interact with shading arrangements, glazing, opaque-wall details, room use, ventilation, cooling, controls, and maintenance access. The responsible design team should decide how these elements work together for the individual building.
Use the following questions during design and procurement meetings:
- Which parts of the façade and which rooms need separate review because their use or exposure differs?
- What is already fixed in the project design, and what is still an option for the responsible design team to resolve?
- How will opening operation, shading, ventilation, cooling, and controls be coordinated in the final operating plan?
- What evidence does the buyer require for the proposed configuration, and who will determine whether it applies to the project?
- Which installation and maintenance interfaces must be documented before handover?
These questions are deliberately neutral. They do not prescribe a universal glazing choice, opening pattern, shading device, or cooling method, and they do not represent a local-code interpretation.
Request Evidence for the Final Configuration
When a project has stated performance, documentation, or approval requirements, request evidence that matches the final proposed configuration. A generic product brochure or a document for a different size, glass build-up, hardware set, opening type, installation detail, or project context may not answer the buyer's question.
Before comparing quotations, confirm:
- the exact configuration the manufacturer is reviewing;
- the project requirements that need evidence and the party who set them;
- which product-specific documents are available and what each document covers;
- the local design, engineering, approval, and installation questions that remain with the responsible project team; and
- the decisions that must be completed before an order or final project acceptance discussion.
Do not translate a headline about chronic heat into a promise of indoor comfort, energy savings, or local compliance. If the project needs a quantified outcome, the responsible project professionals should define the method, inputs, review route, and evidence required for that outcome.
Put Maintenance and Handover in the Scope
Long-term planning should continue through handover. The project team should identify who receives the final maintenance information, who has access for cleaning and inspection, and how changed operating conditions or damaged components will be reported.
Discuss these handover items before the order stage:
- cleaning and inspection access;
- operating instructions and control responsibilities;
- routine checks, maintenance records, and the owner for follow-up;
- replacement-part or component information required by the building operator;
- manuals, training, and documentation needed at handover; and
- the party responsible for confirming the final operating plan after installation.
Clear ownership does not replace design review. It makes the ongoing responsibilities visible instead of assuming that product selection alone solves a long-term heat challenge.
Pre-RFQ Checklist for a Long-Term Heat Planning Discussion
Before sending a window or door inquiry, prepare or clearly mark:
- the latest drawing revision and a complete window/door schedule;
- quantities, dimensions, opening types, glazing, hardware, finish, and accessories;
- project location, building use, room-use notes, façade zones, and available site information;
- the project's stated heat, comfort, document, approval, operation, and maintenance questions;
- the building-services, shading, ventilation, cooling, and controls questions that need coordination;
- installation interfaces, target timing, and the buyer's document-review route; and
- the named contacts responsible for design, local compliance, building services, and operations confirmation.
Send the confirmed scope and label open items honestly. That gives the manufacturer enough information to identify the next technical and commercial questions without pretending that unresolved project decisions have already been approved.
FAQ
Q: Does chronic heat mean that every East African project needs the same window or door system?
A: No. UNDRR's chronic-heat discussion is a regional resilience signal, not a system specification. The final selection depends on the individual location, building design, room use, site inputs, operating plan, applicable requirements, final configuration, and evidence reviewed for the project.
Q: Can a supplier confirm that a window or door package will keep the building cool?
A: Not from a regional article or a generic RFQ. Indoor conditions depend on the full building design and operation. If the project requires a defined comfort or energy outcome, the responsible project professionals should set the method, inputs, and evidence requirements before the final configuration is approved.
Q: What should I send for a long-term heat planning discussion?
A: Send the drawings or schedule, quantities, dimensions, opening types, glazing, hardware, finish, location, building-use information, façade-zone notes, available site inputs, document requirements, and the open questions for design, building services, local compliance, and operations teams.
Send a Coordinated Project Brief for Preliminary Review
Send your available drawings or window/door schedule together with the confirmed site, occupancy, façade, operations, and documentation inputs. The SGL team can review the inquiry scope and identify the next technical and commercial questions for the project discussion.
