whats the proper way to measure replacement bay and bow windows
How to Survey a Bay or Bow uPVC Window
There is a departure between surveying a bay or bow window and surveying and plumbing fixtures a apartment UPVC Window.
The Difficult Way to Survey a Non Square Bay
A bay pole associates connects two windows together at the angled role of the bay. To work out the size required to produce a bay layout, come across below:
The back bridge is the internal width of the bay that is measured from inside frame to inside frame. You may have to chop back the plaster on the within to locate the frame edge. Please note it is surveyed within and not outside except for the height which is measured from outside east.g. exterior brickwork sizes & within plaster lines.
The projection from the imaginary string line in the drawing below indicates in that location is 300mm to the inside of the bay. Should you wish to make sure, a string line can exist set up for project measurements. This is ofttimes very helpful on multi-faceted bays.
The internal facet widths are 649mm in the above diagram, 625mm in brackets and 600mm for the middle window. The smaller size would be the window manufacturing size as the UPVC bay pole assembly will then sit down in the gap in betwixt the 2 frames.
The method to a higher place allows the calculation of the angle where the two windows meet using trigonometry. Nosotros can and so use our software to take the sizes and produce a bay plot as in a higher place, which we can e-mail to be signed off earlier we manufacture. Bay windows cannot exist produced online withal.
Survey a Bay Window The Easy Manner
The above procedure is all about finding the bay angle so that a deduction can be fabricated to fit the pole in. All the same, there is an easier way by using an angle finder as shown beneath. The toll of an angle finder is approx. £30.00 delivered from Screwfix
An bending finder will allow y'all to mensurate the angle on the inside of the bay window and the bay facet (window) internal widths to go with the angles. From this, y'all tin can and then calculate the bay. It is appropriate to email Due south Coast Windows the sizes and window styles as we will send a sign off sheet before any windows are manufactured.
Square Bay Windows
These are the easiest to measure as they exercise not require an angle finder to measure out a square bay. The bay is set at 90 degrees, so all yous need to do is measure out the inside sizes of each facet. We volition and then add on the ii ninety caste posts. These are 70mm foursquare and increases the external brick size by 140mm (see square post picture show). The meridian is measured from the outside & inside.
How Do Bow Windows Differ from Bay Windows?
A bow window has a very shallow angle and the projection is a lot less than for a bay window. For an existing bow window, mensurate the internal size brick to brick and not frame to frame. The throw is to the inside of the frame.
Those wishing to catechumen a flat window into a bow window demand to know the external brickwork opening sizes and how many facets you will require as well every bit the project you would like. This usually works well at near 1/8th of the width. Please electronic mail any queries to info@southcoasthome.co.uk
NOTE: When removing an existing bay window, brand sure you use Acrow props to fit between the floor and the ceiling as many bays are load bearing.
Bay Jacking Posts
When a bow or bay is load begetting (i.eastward. it has a bay window above it) to comply with the building regulations information technology must be fitted with load bearing bay pole jacks. These jacks fit through the external welded sill and can and then be adapted past beingness wound upwardly or down to shrink the bay pole on to a elevation plate supplied and on to the head of the aperture. These have a load bearing capacity of 2500kg each so a 3 on 3 sided bay volition load bear 7500kg. They come in ones for square bays and non-foursquare bays.
Hayden Hicks
Hayden is the founder of S Coast Windows and Habitation Improvements, a family-run visitor with over forty years' experience in the manufacture.
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Source: https://www.southcoastwindows.co.uk/blog/how-to-survey-a-bay-or-bow-upvc-window/
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