Clayridge Roofing | Flat Roofing
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Flat Roofing

Flat Roofing in Croydon and South London by Clayridge Roofing
Common Problems with Flat Roofs

Ponding water on flat roofs (where water cannot drain away) can cause costly flat roof leaks. Mainly caused by poor draining preparation of the roof deck when constructed.

Another problem area is sun blistering of the roof membrane (usually mineral felt). Over time, once this cracking and splitting has occurred you will have ingress of rain and snow, eventually causing roof structure damage and roof leaks.

Clayridge Roofing have many years of experience and knowledge of installing and repairing flat roofing in Croydon and South London be it traditional or modern systems. We are happy to visit and advise you on the options available and the best course of action for your flat roof problems.

Here are examples of our work:

This is an example of the flat roof that is  having a completely new roof flat going over the top of the existing flat roof that was done 10 years ago that is very good condition  but just needs a new layer of felt burnt onto the assisting flat roof with A hot gun and Fix R cop sheet felt to finish,!!

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This is a flat roof example of an old ash felt flat roof that all of the front has melted away over the years into the old existing guttering blocking me up and making the water run into the lower buildings The whole front of the flat roof was removed and New white plastic PVC fascia board covering was fixed onto the wall and new Black plastic guttering is fixed into position And a new flat roof was built over the old existing Ash felt roof.

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Taking off the old asbestos sheeting re-building a new flat roof and new tiled roof with 3 new roof windows fitted into position so lights can come into the side building at the side of the house and so that the light from the roof windows can come into the kitchen area.

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To completely take off the old existing flat roof back to you regional roof joists and to completely rebuild all of the flat roof with new boards and then to use the 3 layer roof system that consists of 3 layers of felt and then to renew all of the lead flashings around the whole of the flat roof area and to make good front entrance of the flat roof gate with new white plastic fascia board covering to finish,

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Flat roof showing deterioration of original roof felt.Part way through re-roofing using heat gun to affix new felt.    
 
Before and after looking to the rear of the property.    
Before and after looking to the front of the property.    


There follows some recent examples of our work on flat roofs. You can jump to each example by clicking on the links below…

This series of photos show work undertaken on flat roofs in 2009.

Flat Roof – Croydon – back to top    
Flat roof showing deterioration of existing felt prior to re-roofing.
The old roof is stripped to original boards and de-nailed, new insulation is installed between the joists.
New plywood is installed, then three layers of bonding felt, tacked down with half inch clout nails, spaced at four to six inches (not shown).Green mineral and felt top layer all bonded by hot torching.
Facias and guttering Before After
Guttering.    
 Facias.
Flat Roof – Balham 2009 – back to top    
 The roof in it’s original condition.Starting the stripping process.    
 Stripped to original joists and new insulation installed.    
 New plywood sheeting installed.Three layers of bonding felt, tacked down with half inch clout nails, spaced at four to six inches. Tiles from other roof stripped back and new felt extended under tiles.    
Green mineral and felt top layer all bonded by hot torching. The finished roof.    
Flat Roof – Example 1 – back to top
Flat part of roof prior to re-roofing.
Flat part of roof stripped to original boards and de-nailed, replacing rotten timber and board where necessary.
Three layers of bonding felt, tacked down with half inch clout nails, spaced at four to six inches.Green mineral and felt top layer all bonded by hot torching.
 Roof completed.
Flat Roof – Example 2 – back to top
Old wood roof frame strengthened with new timbers and covered in new plywood sheeting.
Skylight surrounds in place.
Three layers of bonding felt, tacked down with half inch clout nails, spaced at four to six inches.
Skylight coverings in place.Starting to lay green mineral. Green mineral and felt top layer all bonded by hot torching.
Roof completed.
Flat Roof – Example 3 – back to top
Flat roof prior to re-roofing.
Roof stripped and rotten timber replaced.Two new layers of bonding felt and one top layer of green mineral felt (far right).
Finished roof.

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