<p>Upon our attendance at the above stated location, we have been made aware of several location where internal leaks originate from. Several areas on the roof require our attention in order to address all the immediate causes of leaks. Furthermore given that the school is situated at a low level elevation, a flat roof of this span will in essence become a suntrap, this vast exposure to the sun leads to the deterioration of the top layer mineral felt in the form of cracking.</p><p>The&nbsp;cracks on the top layer eventually allows air to be trapped inside the roof substrates and when exposed to heat causes a bubbling effect, which can tear the welds. This is shown most evidently in PH1 and PH2. The start of this process can be noted throughout the entire structure. This is evident in the warping that occurs when the roof is walked over. &nbsp;To address this aspect we propose to coat the entire roof in <strong>Liquid Rubber coating or heat reflective paint</strong>. This has a sealing and UV reflective effect, which will entirely stop cracking any further and act to stop any further leaks. Given that its composition comprises a latex compound it is a flexible coating which will allow for movement in the building as opposed to some traditional methods like fibre glass.</p><p>Further to this considerable amounts of debris is built up in all gutters leading to standing water, which over time leads to accentuated wear. When coupled with the cracking in the felt, this can lead to delayed penetrations process leading to small drips internally as highlighted in PH3 PH4 PH5 PH6.</p><p>Furthermore as reported by the school maintenance team the drainage gulley running parallel with the sports hall is host to constant small drips. This is caused by the AC condenser overflow pipe which subjects the gulley to unnecessary volumes of water. Please see PH7 PH8 PH9. To address this issue we would propose to re-route the overflow for the condenser to the nearest downpipe.</p><p>The window sill has been noted be cracked, this will allow water to penetrate internally. Please see PH10. As part of our scope of works we propose to also address this issue.</p><p>The external cladding has also been noted to have slipped in several locations. The slipped tiles also play a role in allowing water to enter the internal fabric of the building. Please see PH11 PH12 PH13. To address this we propose to secure the slipped tiles using lead straps.</p><p>Parts of the lead dressing has likely been deteriorated by adverse weather. Please see PH14. We propose to address this by installing new lead dressing to the affected weather.</p><p>Overall the condition of the roof does not warrant replacement, and fortunately we have caught the start of the deterioration just before the point of no return. Undertaking the maintenance scope of works above will certainly prolong the lifespan of the roof for a considerable amount of time.</p><p><strong>Option 1:&nbsp;</strong>To coat the entire roof using liquid rubber coating</p><p>To apply liquid rubber coating all felted areas inclusive of all the above&nbsp;repairs and access equipment&nbsp;&nbsp;</p><p>Our total cost to carry out&nbsp;the above during working hours shall be: &pound;36,700+VAT</p><p><strong>Option 2 :&nbsp;</strong>To coat the entire roof using UV reflective&nbsp;coating</p><p>Our total cost to carry out the above during working hours shall be: &pound;44,200+VAT</p><p>To apply heat reflective paint and seal all joints where needed. It includes all scaffolding and all felt repairs when necessary as well as all other above stated works.&nbsp;</p><p><strong>Recommendations:&nbsp;</strong></p><p>With this particular type of roof and the type of mineral felt on the existing roof we would propose to proceed with&nbsp;the heat reflective coating (Option 1)&nbsp;&nbsp;since this would render&nbsp;a&nbsp;much better outcome in the long run.&nbsp;Particularly since it allows for a much better finish and bonding to the felt as opposed to the liquid rubber coating (Option 2).&nbsp;</p><p>Please see our cost breakdown below:&nbsp;</p><p><strong>Option 1:&nbsp;</strong></p><p>Labour: &pound;14,520.00</p><p>Materials: &pound;15,780.00</p><p>Access Equipment: &pound;6,400.00</p><p><strong>Option 2:&nbsp;</strong></p><p>Labour: &pound;15,840.00</p><p>Materials: &pound;21,960.00</p><p>Access Equipment: &pound;6,400.00</p>