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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

Buy individually or both books together. Delivery is free!

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    • CommentAuthorthe souter
    • CommentTimeFeb 21st 2015
    It appears that securing PV A-frames to flat roofs by using Jewsons gravel bags as ballast, is not a twenty year fix

    Not hearing the happy hum of our inverter t'other day, I ventured into the attic to discover zero production. Strange; it was sunny. Out on the roof, one cable was disconnected, another so taut it was acting as a guy line to a bank of four panels. They had marched a foot towards the edge of the flat roof...

    Last year, on our other flat roof, I had inserted cut-up old paving slabs into the rear flanges of the frames. This seemed a good substitute for the bird-pecked, splitting, uv degrading clear plastic bags slumped over the bases. Did I then immediately go purchase new slabs and swap out the bags on the remainder? Labelling myself a bit of an eco warrior, I disliked the idea of fresh concrete slabs; surely some would crop up soon from a job? Then it was Christmas/ raining/ had a cold/ etc. Just plain dropped the ball.

    I accept this is 'school of the flipping obvious' stuff but if you have any doubts about the security of your panels, please listen to that little voice and avoid a potentially disastrous scenario. As it was, I only lost perhaps 15 kw/h production and some pride.

    To your ladders!
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