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Quality and Leadership

Bullnose

Half-Bullnose

Concave

Convex

Lyrebird Enterprises

Ph: (03) 9707 4300 ● Fax: (03) 9707 4277 ● 98 Enterprise Ave, Berwick, Vic. 3806

How To Build A Bullnose Verandah

Using Lyrebird Rafters

Made from • MGP12 Radiata pineFinger jointed for • superior strengthDesigned for • fast fixing to fascia beamDesigned and • tested to exceed requirements for SAA Codes:

AS 1170 Part 1• : SAA Loading CodeAS 1720• : Timber Structures CodeAS 4055• : 1992 Wind Load For Housing

IMPORTANT INFORMATIONLyrebird Rafters have been tested for strength. The instructions contained in this brochure apply to 1. Lyrebird rafters only and are not suitable for other rafters.These instructions are based on the following assumptions:2.

You have building skills•Theverandahfloororitsfoundationsareinplace•Youhaveasetofcompletedplansand/ordrawingswithspecifiedverandahdimensionsandarafter•plan. (We can asssit you in setting up a rafter plan if you don’t already have one)

Although the diagrams following show Bullnose rafters, the same principles of construction apply to 3. Concave, Convex and Half-bullnose roofs.

THE CONTENTS OF THIS BROCHURE IS THE SUBJECT OF COPYRIGHT, THE RIGHTS OF WHICH ARE OWNED BY LYREBIRD PRODUCTS PTY LTD TRADING AS LYREBIRD ENTERPRISES 2006

Lyrebird Rafters are:

Ogee

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How To Build A Bullnose Verandah Using Lyrebird Rafters

SUGGESTED CONSTRUCTION DETAIL FOR A BULLNOSE TYPE ROOF FOR 1800 WIDTH VERANDAH, USING LYREBIRD RAFTERS

Rafter Plans

Battens or purlins @ 900 centers

90x45 MGP12 common rafters

Common rafter fixedtowall

Hip / corner rafter

1800mm1200mm centers if using battens over rafters

1800mm centers if using purlins between rafters

See SECTION A-A below

OPTION 1: CoRRuGATeD iRon RooF CuRveD To 400 RADiuS, on 90x45 F5 SeASoneD Pine PuRLinS BeTWeen RAFTeRS

Lyrebird common raftersspaced @ 1800 centers

400 radius

5 degree roof pitch

400 radius

Lyrebird common raftersspaced @ 1200 centers

100x50 F7 oregon wall plate secured to wall face

200x50 F7 oregon fascia

ex 100x100 turned or square post on galvanised steel post support

Brick or concrete pavers or concrete slab

Min

205

0mm

190m

mH

eigh

t de

pend

ing

on ra

dius

OPTION 2: CoRRuGATeD iRon RooF CuRveD To 450 RADiuS, on 50x75 F7 oReGon BATTenS oveR RAFTeRS

It is recommended that all timber components be at least primed before fixing

Stage 1

Fix the wall plates1. Leave enough clearance under the eaves to allow for the corrugated iron-16mm-andanyflashing

Mount the stirrups or post 2. bases

Cut the posts3. or erect “jack posts” if waiting for the posts to be supplied. See detail “C” and “D”. note minimum clearance tothefloor,includingallowanceforstirrup height

Erect the posts and fascia 4. beam See detail “C” and “D” to cut and drill fascia. Fix fascia support bracket or half post to the corner of the house, as in detail “B”

Cut the rafters to length 5. See detail “e” how to measure the actual length of the rafters in a straight line

Fix the rafters6. According to the rafter plan

Fix the purlins or the battens7. See options 1 and 2 above

A

1

2

3

4

5

6

7

How To Build A Bullnose Verandah Using Lyrebird Rafters

SUGGESTED RAFTER PLAN FOR 1500 WIDE BAY WINDOW VERANDAH WITH BULLNOSE ROOF, USING LYREBIRD RAFTERS

Common rafter

22 1/2” bay window rafters (4)

45° valley rafters (2) to form 100mm valley

A

B

C

1500

mm

1500

mm

1500mm

Stage 1 - Details

Plan view

Fascia support bracket

Joist hanger

ALTERNATE DETAIL OF WALL PLATE

JOIN FASCIA AT THE POST

Commonrafterfixedtothe wall

Fixing to post

Fixing to rafter

Cut rafter length

50 x 70mm battens (3)

Gutter clip

Post support

Min

205

0mm

cle

aran

ce

totheflooroftheverandah

How to create a bullnose valley in an internal corner

Fixing to post

Fixing to rafter

90 x 45mm or

140 x 45mm Hip rafter

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Placing purlins between the

rafters

B How to build a hip end

E Rafter length

D Hip corner detail

C Fixing to the post

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How To Build A Bullnose Verandah Using Lyrebird Rafters

Stage 2Mount the gutter clips 1. Trim the roof iron 2. Important: The front of the bullnose curve has a 80mm straight section. You may need to trim this end so that the iron will be clear of the gutter bottom. Trim and test onesheetfirst.Then,withpliers,multigrips, or a shifting spanner closed down to 2mm, grip valley 20mm in from the top end of the sheet and turn up as far as possible.

Mount guttering and fit 3. downpipe pops

If applicable, lay the valley 4. gutter Lay the valley gutter between the two rafters, as shown in detail on previous page.

Lay the roof iron 5.

A carpenter’s level should be •usedtolaythefirstsheet

Always measure every 3rd or •4th sheet to check square

Saw toothing occurs when •curved steel sheets are laid (or stepped) over each other, as shown in the diagram. This is a natural occurrence and cannot be avoided. it is therefore essential to ensure that each succeeding sheet is pulled square to the wall (use a string with a hook on one end to pull thesheetintoplacewhilstfixingit).

Finish the job professionally! 6. UsefibreglassBullnoseHipCovers,madetofittheroofneatly.Curvedmetal valleys can be made to suit your bullnose radius. Cap off roof ends with curved Barge Capping. Installcurvedflashingwheretheroofmeets the wall.

Sawtoothing

Stringline

Level

iron

iron

Roofingscrew

Roofingscrew

Gutter & Clip

Gutter & Clip

Rafter

Rafter

Gutter detail: When using battens over rafters

Gutter detail: When using purlins between rafters

Trim the roof iron

Barge cap Side wall flashing

Fibreglass hip cover Curved metal valleyTo order your bullnose verandah, please contact Lyrebird on

Phone: (03) 9707 4300 or Email: sales@lyrebird.com.au