Re roofing approvals- what to expect

Process information that roofing contractors and builders need to know (to save time and hassle)

Flowchart highlighting key steps to obtain your Form 21 for re roofing.

Collaborate with professionals, so any challenges are overcome early

Re roofing projects can vary in complexity, so working closely with your engineer from the start in turn ensures a smooth building approval. Engineering and certification processes relate to the whole structure (not just the roof system.)

1. Site and engineering plans are required to get the approvals process started.

2. Once the building approval is issued, re roofing work can begin.

3. When the construction is complete, schedule the final inspection (certifier).

4. Once all documentation is received, a Form 21 can be issued to finalise the project.

BA&A is proud to partner with stakeholders and contractors

• to help safe building work get started quickly

• to provide required documents so that insurance claims can progress smoothly.

Know your legal obligations for residential re-roof jobs

Download this handout for more information about re roofing projects in Queensland, and know when a building approval is required.

Re roof handout for contractors_Aug 22

.pdf

Download PDF • 177KB

• More information about delivering safe and compliant re roofing projects here.

• Access page 31 of the QBCC Standards and Tolerance Guide here.

Go to QBCC/ Timber Qld resource: Repair of Sheet Metal Roofs in Cyclonic Areas

Need a re roof approval for an older house - with no plans / hand pitched roof?

Get a quicker certification – compile required documentation

• Engineering plans, site plan and details for the upgrade of the tie down

• Form 15 from the engineer (confirms RPEQ status)

• Form 12 from the engineer (confirms frame aspect is completed as per the drawings)

Form 43 from roofing contractor plus energy, roofing and bushfire documents (if required)

Provide these documents when the re roof approval is for a new dwelling.

For solutions and resources to support with the effective installation of roof flashing systems, access QBCC's fact sheet.

QBCC Fact Sheet - avoid roof flashing system defects

💡Providing photos and video from the roof when building work is finalised helps to ensure all work is completed

When roofing works involve the replacement of more than 20 per cent of the existing roof area, a Building Approval is required. The building approval may be obtained by either the roofing contractor or the property owner.

From the Queensland Building Regulations 2021 - schedule 1- clause 9 identifies that if replacing more than 20% of the cladding, it will trigger a building approval.

See also this extract from the NCC Housing Provisions -

Masonry cladding - still requires the flashing however the flashing can mean more than metal top flashing - see extract from NCC Vol 2 - Part 5.7.4.

(1) Damp-proof courses and flashings must be—

1. located so as to form a continuous damp-proofing barrier—

   1. around the bottom perimeter of walls where constructed on a concrete slab; and

   2. in walls and piers below suspended floors; and

   3. where a masonry wall passes through a roof; and

   4. where a roof abuts an external masonry wall; and

   5. to the bottom and tops of windows and doors and the like in accordance with (3), except a damp-proof course or a flashing need not be provided to the top of a window or door where the opening is protected by an eave of a width more than 3 times the height of the masonry veneer above the opening; and

2. continuous through the wall or pier and be visible from the outside face of the wall.

(2) The location of a damp-proof course, or flashing serving as a damp-proof course, must be not less than—

1. 150 mm above the adjacent ground level; or

2. 75 mm above the finished surface level of adjacent paved, concreted or landscaped areas that slope away from the wall; or

3. 50 mm above finished paved, concreted or landscaped areas complying with 3.3.3(b)(ii) and protected from the direct effects of the weather by a carport, verandah or the like; or

4. in low rainfall intensity areas—

   1. 15 mm above finished paved, concreted or landscaped areas; or

   2. 0 mm above finished paved, concreted or landscaped areas if the damp-proof course is protected from the direct effects of the weather by a carport, verandah or the like.

(3) Sill and head flashings serving openings must be—

1. installed so that the flashing extends not less than 150 mm beyond the reveals on each side of the opening; and

2. located not more than—

   1. one course below the sill brick course; and

   2. 300 mm above the opening; and

3. turned up in the cavity not less than 150 mm above the opening; and

4. embedded not less than 30 mm into—

   1. for masonry veneer, the masonry leaf; and

   2. for cavity masonry, the outer masonry leaf; and

5. attached to the window or wall framing.

   
   

Homeowners: BA&A have worked with storm affected residents from the Gold Coast to Gympie - all grateful to their roofers for helping protect the safety and resale value of their home.

Hail damage causes (expensive!) issues like leaks and rust and corrosion in the long term.

• Our clients are often engaged by insurance companies to come to the roofing rescue.

• We support roofing contractors to meet their administrative requirements as described by the QBCC

Get support from the early stages - chat with a certification expert.

BA&A are proud members of MRIAQ. We can help with projects in Brisbane and surrounding areas.

Advice on

- further project-specific clarification

- recommended contacts for experienced engineers

- site-specific quote(s) for your next re roof project

Ensure safe and compliant re-roofing projects.

Speak with Michael Tyrrell and the B&A team- 07 3265 4114 or request your free quote here.

Contact the BA&A re roofing team