Rafters or ridge beams sagging

  • damaged rafters2

Listed under: Interior, timber and wood-based, timber, Roof, cladding, framing, roof space, moisture, durability, rot, roof cladding, leaks

Crusade

Rafter spans besides bully for the timber size and/or roofing type, or roof framing has been overloaded

Repair

  • in older houses such every bit villas information technology is not unusual to find structural timbers that are undersized compared to today'due south standards

  • get professional advice from an architect or engineer to determine the all-time solution

  • depending on the circumstances, repair work may include installing new underpurlins or struts or fixing new timber plates to both sides of sagging or damaged framing

  • new radiata pino timber should be treated to H1.2

  • in some cases, options may include using engineered steel beams or LVL (laminated veneer lumber) beams – it is oft possible to conceal these within a roof space

Cause

Poor quality timber, or cracked or broken timber

Cause

Timber has rotted due to roof leaks or high roof infinite moisture levels

Repair

  • starting time, accost the moisture problem. Identify and repair any leak(south). If the location of the leak is difficult to find, or there may be multiple leaks, call a registered building surveyor to investigate and recommend solutions

  • moist air may be inbound the roof infinite from:

    • the subfloor (possible with older brick veneer cavity walls. Block off the area at the top of the wall where at that place is no wall underlay or block off at soffit level if there is wall underlay. This is to stop clammy subfloor air getting into the roof space)

    • ceiling holes cut for downlights in kitchens or bathrooms – supervene upon the downlights with IC or IC-F downlights, or with ceiling-mounted lighting

    • extract fans venting into the roof space – vent the air to the outside through an external wall, roof or soffit vent

  • get professional person advice from an architect or engineer to determine the all-time structural framing solution

  • all rotted timber should exist removed

  • new radiata pine timber should exist treated to H1.2

  • in some cases, options may include using engineered steel beams or LVL (laminated veneer lumber) beams – information technology is often possible to muffle these inside a roof space

Cause

Calorie-free roof cladding has been replaced with a heavy roof cladding

Repair

  • become professional communication from an architect or engineer to determine the best solution

  • depending on the circumstances, repair work may include installing new underpurlins or struts or fixing new timber plates to both sides of sagging or damaged framing

  • new radiata pine timber should be treated to H1.ii

  • in some cases, options may include using engineered steel beams or LVL (laminated veneer lumber) beams – it is frequently possible to conceal these within a roof space

Cause

Internal wall has been removed

Repair

  • get professional person advice from an architect or engineer to determine the all-time solution. This may include additional back up in the roof or within the house to provide the structural support that the old wall provided

  • new radiata pino timber should be treated to H1.2

  • in some cases, options may include using engineered steel beams or LVL (laminated veneer lumber) beams