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Leaking Conservatory Roof Repairs & Proper Cleaning

Common Problems:
Poor fitting this is one of the most common problems with roof and curtain wall related leaks. When I suggest poor fitted this can stem from the original manufactures and fabrication quality control procedures or a lack of adequate training. Contractors also play a major part in the chain of events with poor fitting procedures.

Conservatory Roof Leaks: This subject is very common and usually simply answered "POORLY FITTED" the roof itself is a separate system from the walls or windows of the conservatory, the roves are manufactured in factory conditions and are usually dismantled and sent out in pieces (please note patient glazed roves are cut and fixed on site).

So in theory the roof was manufactured square and plumb nothing missing and hopefully tested however site conditions are different and can vary.

The roof system must be fitted exactly as was in the factory, it has to be perfectly square and plumb, if the walls of the conservatory are not square then the fitter must compensate and pack off the head of the walls to create a level surface, the property wall will also have to be packed. Once roof is perfectly square and fixed the roof must be weather sealed and a lead flashing fitted between the roof and the property wall.

In our experience the roof is poorly fitted again this maybe lack of experience or allocated time.

"Our solution is to take the roof off and refit."

Another common problem is the method of cleaning a dirty roof; I have experienced all sorts of methods from a jet washer to somebody crawling over the roof with a brush and soap.

"Our solution is to strip down and clean each roof panel (there is no better or safer way)."

Below is a very good example of the kind of problems that we encounter when called to investigate and repair leaking conservatory roofs. Faults are very often down to improper installation and/or a fault in the manufacturing process.

Background Information
Conditions prior to investigations. 2 x damp patches, evidenced by stained plasterboard Internal moisture readings prior to testing indicated areas as dry, with readings of approximately 40-45. (0-dry 100 saturated) Weather conditions: Dry
Simulated Rainfall Test 1
Test type Clear water. Item Joints between ridge horizontal and vertical glazing bars at four locations. Findings Water manifested directly below the ridge then migrated down internal frame. Similar results at all locations. Identified by Photographs above, items circled blue. Water entry points and direction of migration arrowed, also blue. Note: Gaps were in evidence at the glazing bar joints tested. Drainage channels from glazing bar covers had been blocked with mastc (e.g. circled red above)
Simulated Rainfall Test 2
Test type Clear water. Item Junction between static and sliding rooflight sections. Findings Water manifested directly below. Identified by Photographs above. Note: Missing cover flashing.
Simulated Rainfall Test 3
Test type Clear water. Item Junction between static and sliding rooflight sections. Findings Water manifested directly below. Identified by Photographs above. Note: Missing cover flashing.
Simulated Rainfall Test 4
Test type Clear water. Item Cover flashing to base of glazing. Findings Water drained into the drainage channel below. No leak was in evidence below. Identified by Photographs above. Note: Drainage channel filled with water due to poor drainage (see comment next page).
Flood Test
Test type Clear water. Item Drainage channel. Findings No water manifested at leak site whilst on site, although moisture readings to plasterboard increased from 40 to 70 by time of departure. Identified by Photographs above. Comment: Drainage was poor.

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