<p>Further to our site investigations we report as follows. A core sample was taken in the central valley gutter and we found the following build up&nbsp;Original asphalt membrane,&nbsp;90mm insulation board,&nbsp;Aluminium reinforced self adhesive felt carrier membrane,&nbsp;Seamless, flexible, high performance liquid coating - two layers&nbsp;(there was no reinforcement matting between the layers which is unusual)&nbsp;Water was found underneath the insulation board.&nbsp;The repairs that we were asked to investigate have failed because the existing membrane was either not prepared / dried correctly, or more likely failed due to the lack of primer.&nbsp;We were unable to ascertain how many leaks are currently being experienced and site were unsure.&nbsp;The concern is that water could be ingressing anywhere on the roof, once through the liquid coating membrane and insulation its likely to track across the original asphalt membrane and into the valley gutter (the lowest point).&nbsp;If there are one or two cracks in the base of the original asphalt gutter, there could be multiple ingress points that find there way to these cracks.&nbsp;As a first course of action, we would recommend the below:&nbsp;</p>

<ul>
	<li>Operatives to apply protective sheeting to work routes and working areas.</li>
	<li>To carry out electronic leak test carried out by specialists.&nbsp;</li>
	<li>We would be in attendance and carry out any suitable repairs to any minor defects found (allowing for 20 no).&nbsp;</li>
	<li>A photographic report would be provided upon completion together with recommendations for any additional works.&nbsp;</li>
	<li>Site to be left clean and tidy.</li>
</ul>

<p>Project Note: Additional quote to be sent for any further repairs required.&nbsp;</p>
