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22/08/2026

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Methads of reducing rafter spans
19/08/2026

Methads of reducing rafter spans

Door design
18/08/2026

Door design

New design
18/08/2026

New design

Ten Examples of Trussed Roofs 🏠🪵Roof trusses can be adapted to different roofing materials, pitches, spans, and architec...
14/08/2026

Ten Examples of Trussed Roofs 🏠🪵

Roof trusses can be adapted to different roofing materials, pitches, spans, and architectural requirements. This historic reference illustrates several traditional timber truss arrangements and how the framing changes with the roof covering and pitch.

Key Roof Truss Examples:
• A — Pantile Roof: Traditional timber truss arrangement designed for pantile roofing.
• B — Pediment Pitch: Example showing different pitch proportions for the roof profile.
• C — Slate Roof: Truss arrangement adapted for a slate-covered roof.
• D — Plain Tile Roof: Traditional truss with supporting internal members for tile loading.
• E — Contracted Roof: Reduced roof arrangement with a sub-beam supporting the pitched members.
• F — Double/M-Roof: Multi-bay arrangement using repeated truss sections.
• G — Treble Roof: Deeper internal framing creating a stronger traditional roof profile.
• H — Quadruple Roof: Extended multi-bay truss with repeated curved and vertical supports.
• I — Flat Roof: Low-pitch roof arrangement with progressively changing pitch points.
• J — True Pitch: Higher-pitch configuration illustrating how roof geometry changes across the framing system.

The main lesson is that roof pitch and roof covering influence the structural arrangement. Timber members, ties, struts, and intermediate supports work together to transfer roof loads toward the supporting walls.

These historic examples show how builders developed different truss forms for pantile, plain tile, slate, contracted roofs, and multi-bay structures.

Important: These are historical/illustrative framing examples, not construction-ready engineering details. Modern trusses require verification for span, timber grade, dead load, live load, snow/wind loads, connections, bracing, and applicable local building codes.

Which design would you choose for a traditional timber building — A through J?

Roof Eave & Rafter Soffit Framing Detail 🏠🪵Proper eave construction is important for roof ventilation, moisture control,...
14/08/2026

Roof Eave & Rafter Soffit Framing Detail 🏠🪵

Proper eave construction is important for roof ventilation, moisture control, soffit support, and clean fascia detailing. This section illustrates how the rafter, fascia, soffit, nailer, and wall framing work together at the roof edge.

Key Framing Details:
• Rafter: Cut with accurate plumb and level cuts for proper bearing and fascia alignment.
• 2×10 Fascia: Provides a solid edge for the roof/eave assembly and finish materials.
• Rafter Plumb Cut: Establishes the correct face for fascia attachment.
• Level Cut: Provides the horizontal surface for the soffit/nailer assembly.
• Nailer: Supports the soffit and provides a fastening surface.
• Roof Vent Hole: Allows ventilation through the eave while maintaining the required airflow path.
• 5/8” Plywood Soffit: Provides a durable underside finish and enclosure.
• Plywood Drip Stop: Helps protect the wall/eave transition from water movement.
• Building Paper: Extends below the soffit area to help maintain proper water-shedding continuity.
• 1” Reveal & Grooved Fascia Detail: Creates a clean finished appearance at the eave edge.

A well-detailed eave should provide structural support, continuous ventilation, and effective water management while leaving enough room for the exterior finish system.

Important: Dimensions and fastening details shown are illustrative. Actual rafter cuts, fascia sizes, soffit materials, ventilation openings, blocking, and fastening should be verified against the project drawings and local building code.

Would you use a vented soffit with continuous intake ventilation or individual roof vent openings on this type of eave?

Timber Roof Framing Connections 🏠🪵A strong timber roof starts with properly sized framing members and reliable connectio...
13/08/2026

Timber Roof Framing Connections 🏠🪵

A strong timber roof starts with properly sized framing members and reliable connections. This framing layout illustrates common roof construction details used in American residential and barn-style structures.

Key Framing Details:
• Rafters: 2×8 framing members shown at approximately 16” O.C.
• Ridge Board: 3/4” × 9-1/4” ridge board connecting opposing rafters.
• Collar Ties: Used between opposing rafters to help stabilize the roof framing.
• Rafter Ties: Help resist outward thrust at the supporting walls.
• Struts: Intermediate supports transferring roof loads toward the beams/posts.
• Beams & Posts: Provide the primary vertical load path from the roof down to the foundation.
• Rafter Connections: Structural connectors/hurricane ties help secure rafters to the supporting framing.
• Beam-to-Post Connections: Proper mechanical fastening is essential for transferring loads safely.
• Foundation Load Path: Roof → rafters → beams/walls → posts → post base → foundation.

The connection between individual members is just as important as the member size itself. Proper fastening helps resist uplift, lateral forces, shear, and gravity loads.

Important: The dimensions and connections shown are illustrative only. Actual rafter sizes, spans, spacing, beam sizes, post sizes, connectors, and fastening schedules must be designed for the specific project, lumber species/grade, roof loads, wind/snow conditions, and local building codes. Always verify structural details with the applicable code or a qualified engineer before construction.

What type of roof framing do you prefer—traditional timber framing or modern engineered trusses?

Roof Framing Purlins, Struts & Knee Wall GuideA properly framed roof depends on correct load transfer between the rafter...
13/08/2026

Roof Framing Purlins, Struts & Knee Wall Guide

A properly framed roof depends on correct load transfer between the rafters, purlins, struts, bearing walls, and ceiling joists.

Key Framing Details:
• Purlins: Typically 2×6, running perpendicular to the roof rafters.
• Supporting Struts: Minimum 2×4, typically spaced every 4’.
• Strut Angle: Should be greater than 45° for proper support.
• Long Struts: Struts longer than 8’ should be braced to help prevent buckling.
• Knee/Dwarf Walls: Used as intermediate support where required by the roof layout.
• Ceiling Joists: May need to be deeper than standard joists to carry the additional roof load.
• Solid Blocking: Install solid blocking between joists where required, especially before the ceiling below is finished.
• Roof Slope: The example illustrates a 3:12 roof pitch.

These framing details help distribute roof loads back to the bearing walls and reduce excessive deflection or movement.

Important: Actual member sizes, spans, spacing, bracing, and connections depend on the roof span, lumber species/grade, snow and wind loads, and local building codes. Always verify the design with applicable structural requirements or an engineer before construction.

What do you use on your projects for roof support—purlins with struts or engineered roof trusses?

Roof Framing & Dormer Construction Guide 🏠🔨This cutaway 3D illustration shows how a residential timber roof is framed ar...
13/08/2026

Roof Framing & Dormer Construction Guide 🏠🔨

This cutaway 3D illustration shows how a residential timber roof is framed around a dormer, exposing the rafters, roof sheathing, wall framing, and supporting structure.

Key Construction Details:
• Main roof rafters
• Dormer roof framing
• Dormer cheek and wall framing
• Roof sheathing and shingles
• Valley and flashing areas
• Timber floor and wall framing
• Structural connections between roof sections
• Open cutaway view for understanding load paths

A properly framed dormer requires careful coordination between the existing roof structure and the new opening so loads are safely transferred into the supporting walls and framing below.

⚠️ Actual rafter sizes, spacing, headers, connections, flashing, and structural requirements must be determined from project loads and local building codes. Verify engineered details before construction.

Would you build a dormer like this on a timber-framed home? 👇

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